Software database · 13 software tools

🏛️ BIM Authoring — Architecture & Building Design

Architectural BIM authoring tools are where the building model is created: walls, slabs, roofs, openings, stairs and spaces are modelled as intelligent objects that carry geometry and data at the same time. From that single model the team produces plans, sections, schedules and quantities, and exchanges the design with structural, MEP and construction teams through native links or open formats such as IFC and BCF. This category covers full BIM authoring platforms, lighter or early-stage design tools that hand over to them, and the products that have been retired or replaced.

Autodesk Revit

Autodesk
Autodesk's multidiscipline BIM authoring platform for architecture, structure and MEP.BIM Authoring — Architecture & Building DesignSubscriptionWindowsIFC ⇄

Revit is a parametric building modelling application in which a single project database drives all plans, sections, elevations and schedules. It is used by architects, structural engineers, MEP engineers and contractors, often on the same central model through worksharing on a local server or through Revit Cloud Worksharing. Revit 2027 makes the application a Forma Connected Client, so early-stage site and building studies from Forma can flow into Revit as native, geolocated models. It is the reference authoring tool in most Autodesk-centred pipelines that continue into Navisworks, Autodesk Construction Cloud and Twinmotion.

Vendor
Autodesk
Current version
Revit 2027 · 2026
First release
2000
Platforms
Windows
Deployment
desktopcloud
Pricing model
Subscription
Free tier
Education access for eligible students and educators; 30-day trial. Revit LT is a lower-cost edition with reduced functionality.
Native formats
.rvt.rfa.rte.rft
Exchange formats
IFCDWGDXFDGNSATSKPNWCPDFFBXgbXMLADSK
IFC
import: Yes · export: Yes · buildingSMART certification: IFC4 Reference View 1.2 export certified for both Architecture and Structure exchange requirements (2020); IFC2x3 Coordination View 2.0 import and export
openBIM notes
IFC import is a link or open operation; IFC export uses the open-source Revit IFC exporter with per-project mapping. Revit 2027 adds IFC parameter mapping to property sets inside the export dialog. BCF workflows rely on add-ins or Autodesk Construction Cloud issues rather than a native BCF tool.
Automation & APIs
Revit API (.NET)Dynamo for RevitpyRevitAutodesk Platform Services Design Automation for RevitRevit Public MCP Server (Tech Preview, 2027)
Learning curve
High — Basic modelling is learned in weeks, but families, worksharing and documentation standards take months of project work.
Typical users
ArchitectsStructural engineersMEP engineersBIM coordinatorsGeneral contractors

Key features

  • Parametric families and system families with type and instance parameters
  • Bidirectional views, schedules and sheets driven by one model database
  • Worksharing with central models on a server or in the cloud
  • Phasing, design options and view templates for documentation control
  • Accelerated Graphics (Vulkan-based) fully supported from Revit 2027
  • Forma integration: site design, building design, carbon insights and the Forma Connected Client
  • Autodesk Assistant conversational AI (Tech Preview)
  • IFC export with property-set parameter mapping and certified IFC4 Reference View output

Strengths

  • Largest ecosystem of add-ins, content libraries and trained staff
  • Strong documentation and scheduling driven by the model database
  • Native links to Navisworks, Autodesk Construction Cloud, Twinmotion and Forma

Limitations

  • Windows only; no native macOS build
  • Large central models become slow without disciplined model management
  • Freeform and complex geometry is harder than in Rhino or Archicad; many teams add Dynamo or Rhino.Inside

Best for: Multidiscipline projects where architecture, structure and MEP share one authoring environment and one central model, especially in Autodesk-based pipelines.

Market notes: Widely used across North America, the UK, the Middle East and Asia-Pacific; frequently the contractually required authoring tool on large multidiscipline projects.

Official training & certification

Sources: autodesk.com/blogs/aec/2026/04/07/whats-new-in-revit-2027 · help.autodesk.com/cloudhelp/2027/ENU/Revit-WhatsNew/files/GUID-C81929D7-02CB-4BF7-A637-9B98EC9EB38B.htm · blogs.autodesk.com/revit/2020/11/10/revit-first-bim-platform-with-dual-ifc4-certification · help.autodesk.com/cloudhelp/2026/ENU/Revit-DocumentPresent/files/GUID-6EB68CEC-6C17-4B16-A509-30537F666C1F.htm · autodesk.com/certification/all-certifications/revit-architectural-design-professional · aecmag.com/bim/autodesk-strengthens-bridge-between-revit-and-forma · Last verified 2026-09-15

Graphisoft Archicad

Graphisoft
Architect-focused BIM authoring with native macOS support and an openBIM-first approach.BIM Authoring — Architecture & Building DesignSubscriptionWindowsmacOSIFC ⇄

Archicad is the BIM authoring tool Graphisoft has developed for architects since the 1980s. It combines a building-element modeller, a documentation environment and the GDL object language in one application on Windows and macOS. Archicad 29 added MEP Designer for in-house services modelling and an AI Assistant in beta. Teams collaborate through BIMcloud, exchange with other disciplines through IFC and BCF, and publish to clients through BIMx. It is commonly chosen by architecture practices that want a Mac option or an openBIM-centred workflow.

Vendor
Graphisoft (Nemetschek Group)
Current version
Archicad 29 (Archicad 30 scheduled for October 2026) · 2025
First release
1987
Platforms
WindowsmacOS
Deployment
desktopcloudmobile
Pricing model
Subscription
Free tier
Educational licences for students and educators; 30-day trial. Perpetual licences ended for new customers after 2024 and for existing customers after 2025.
Native formats
.pln.pla.tpl.mod.gsm
Exchange formats
IFCBCFDWGDXFPDFSKP3DMRVTOBJBIMx
IFC
import: Yes · export: Yes · buildingSMART certification: IFC4 Reference View 1.2 export certified (2019); IFC2x3 Coordination View 2.0 import and export
openBIM notes
Archicad is positioned as an openBIM-first tool: IFC translators are configurable per exchange, BCF issues are managed natively, and Graphisoft publishes free IFC add-ins for Revit to round-trip data. BIMcloud handles team collaboration; BIMx publishes models for mobile review.
Automation & APIs
GDL (Geometric Description Language)Archicad API (C++)Python APIGrasshopper–Archicad Live ConnectionAI Assistant (beta in Archicad 29)
Learning curve
Medium — The interface is approachable for architects, but GDL, Teamwork and IFC translator setup require dedicated learning.
Typical users
ArchitectsInterior designersBIM managers in architecture practices

Key features

  • Building-element tools (walls, slabs, roofs, shells, morphs, curtain walls, stairs, railings)
  • GDL parametric library objects and an integrated object library
  • Teamwork collaboration through BIMcloud (Basic or SaaS)
  • Configurable IFC translators, native BCF issue management and IDS-aware property mapping
  • Grasshopper Live Connection for parametric design
  • MEP Designer and AI Assistant introduced with Archicad 29
  • BIMx publishing for mobile and web presentation

Strengths

  • Native Windows and macOS builds
  • Mature IFC and BCF tooling, useful in openBIM-mandated markets
  • Fast 2D documentation from the 3D model

Limitations

  • Smaller ecosystem of third-party add-ins than Revit
  • Structural and MEP depth is lower than dedicated discipline tools; consultants often work in other platforms
  • Subscription-only since 2026

Best for: Architecture practices, including macOS-based offices, that want a fast documentation workflow and openBIM exchange with consultants.

Market notes: Strong in Central Europe, Scandinavia, Japan, Australia and New Zealand, and in markets with openBIM mandates.

Official training & certification

Sources: community.graphisoft.com/t5/Graphisoft-Insights/Release-Timeline-for-2026/ba-p/691819 · engineering.com/graphisoft-releases-archicad-29-with-mep-designer-and-ai-assistant · buildingsmart.org/ifc4-software-certification-delivers-next-major-milestone · community.graphisoft.com/t5/General-discussions/All-Archicad-Perpetual-Licenses-Terminated-at-the-end-of-2026/td-p/633695 · learn.graphisoft.com/visitor_catalog_class/show/40179 · Last verified 2026-09-15

Vectorworks Architect

Vectorworks, Inc.
Hybrid 2D/3D BIM and design tool favoured by architecture and landscape practices on Mac and Windows.BIM Authoring — Architecture & Building DesignMixedWindowsmacOSIFC ⇄

Vectorworks Architect is the architecture edition of the Vectorworks platform, which also serves landscape (Landmark) and entertainment (Spotlight) design. It combines free-form 3D modelling, BIM building elements and a strong 2D drafting and presentation environment. Practices use it for concept design through construction documentation and exchange with consultants via IFC. It runs natively on macOS and Windows and is part of the Nemetschek Group alongside Archicad and Allplan.

Vendor
Vectorworks, Inc. (Nemetschek Group)
Current version
Vectorworks 2026 (Vectorworks 2027 scheduled for September 2026) · 2025
First release
1985
Platforms
WindowsmacOS
Deployment
desktopcloudmobile
Pricing model
Mixed — Sales of standalone perpetual licences and new Service Select contracts end at the end of 2026; subscription continues.
Free tier
Educational licences for students and educators; trial available.
Native formats
.vwx
Exchange formats
IFCBCFDWGDXFPDFSKP3DMRVTOBJFBX
IFC
import: Yes · export: Yes · buildingSMART certification: IFC4 Reference View 1.2 export certified (April 2019, first vendor to receive it)
openBIM notes
IFC data mapping is controlled per object and per class; BCF issues can be managed inside the application. Vectorworks Cloud Services and the Nomad mobile app cover sharing and review.
Automation & APIs
Marionette visual scriptingVectorScriptPython scriptingVectorworks SDK (C++)
Learning curve
Medium — Drafting is quick to pick up; BIM object setup, classes/layers discipline and IFC mapping take longer.
Typical users
ArchitectsInterior designersLandscape architectsExhibition and entertainment designers

Key features

  • Hybrid 2D/3D objects with BIM data and IFC mapping
  • Free-form NURBS and subdivision modelling inside the BIM environment
  • Marionette visual scripting and Python automation
  • Integrated rendering with Redshift
  • Vectorworks Cloud Services and Nomad app for sharing
  • Site modelling and landscape tools shared with the Landmark edition

Strengths

  • Strong graphic and presentation output
  • Flexible modelling for non-orthogonal design
  • Certified IFC4 export and configurable data mapping

Limitations

  • Less common as the mandated authoring tool on large multidiscipline projects
  • Structural and MEP modelling depth is limited compared with Revit or Allplan
  • Perpetual licensing is being phased out

Best for: Design-led practices that want flexible modelling and presentation quality with BIM deliverables, particularly on macOS.

Market notes: Popular in the UK, Germany, Japan and among smaller architecture and landscape practices, with a large Mac user base.

Official training & certification

Sources: vectorworks.net/en-US/2026 · architosh.com/2025/12/product-review-vectorworks-architect-2026 · forum.vectorworks.net/topic/119646-is-it-true-that-service-select-is-ending-in-2027 · buildingsmartusa.org/ifc4-software-certification-delivers-first-milestone · university.vectorworks.net/local/certifications/info.php · Last verified 2026-09-15

Allplan

ALLPLAN GmbH
Nemetschek's design-to-build BIM platform for architecture, structural engineering and infrastructure.BIM Authoring — Architecture & Building DesignSubscriptionWindowsIFC ⇄

Allplan is a BIM authoring platform that covers architecture, structural engineering and, increasingly, infrastructure in one application. Architects use it for modelling and documentation, while engineers value its reinforcement detailing and precast tools, which makes it common in offices that combine both disciplines. The 2026 release added freeform stair design, multilayer slabs, IDS-based attribute import, a Preoptima carbon-assessment link and the free Allplan Model Viewer. Collaboration runs through the Bimplus cloud platform.

Vendor
ALLPLAN GmbH (Nemetschek Group)
Current version
Allplan 2026 · 2025
First release
1984
Official site
allplan.com
Platforms
Windows
Deployment
desktopcloud
Pricing model
Subscription
Free tier
14-day trial; student and education licences available.
Native formats
.ndw.prj
Exchange formats
IFCBCFDWGDXFDGNPDFSKP3DMGLB (via Bimplus)
IFC
import: Yes · export: Yes
openBIM notes
Allplan 2026 extends IFC4 import, adds IDS-based attribute import and continues BCF support through Bimplus. Bimplus imports IFC 4.3 and SketchUp 2024 files and exports GLB. The free Allplan Model Viewer gives browser-based IFC viewing to any stakeholder.
Automation & APIs
PythonPartsVisual ScriptingAllplan API (C++/.NET)Bimplus API
Learning curve
High — The drawing-file and layer structure differs from other BIM tools and takes time to master.
Typical users
ArchitectsStructural engineersPrecast and reinforcement detailersInfrastructure engineers

Key features

  • Architectural modelling with multilayer walls and slabs and freeform stairs
  • Integrated reinforcement and precast detailing for design-to-build workflows
  • PythonParts and Visual Scripting for parametric objects
  • IFC4 import enhancements and IDS-based attribute import (2026)
  • Bimplus cloud collaboration with IFC 4.3 import and GLB export
  • Preoptima Concept integration for early whole-life carbon assessment

Strengths

  • Strong reinforcement and precast detailing inside the architectural model
  • Tiered subscriptions from Basic to Ultimate
  • Active openBIM roadmap (IFC4, IDS, Bimplus)

Limitations

  • Windows only
  • Smaller international user base and content ecosystem than Revit or Archicad
  • buildingSMART certification status could not be verified for the current release

Best for: Offices that carry architecture and structural engineering in one model, and German-speaking or Central European markets where Allplan is established.

Market notes: Strongest in Germany, Austria, Switzerland, Czechia, France and Italy; the Nemetschek Group's engineering-oriented authoring brand.

Official training & certification

Sources: nemetschek.com/en/news-media/allplans-2026-releases-transforming-project-lifecycle-intelligent-workflows-automation · architosh.com/2025/10/allplan-2026-new-allplan-model-viewer-ai-ifc4-and-more · allplan.com/products/allplan-2026-features · aecmag.com/bim/allplan-unveils-2026-products · Last verified 2026-09-15

BricsCAD BIM

Bricsys
DWG-native BIM authoring with AI-assisted classification, available on Windows, macOS and Linux.BIM Authoring — Architecture & Building DesignMixedWindowsmacOSLinuxIFC ⇄

BricsCAD BIM is the BIM tier of BricsCAD, a DWG-based CAD platform from Bricsys, part of Hexagon. Users model freely with direct-modelling tools and then let BricsCAD classify solids as walls, slabs, columns and other building elements, which are then documented and exported to IFC. It is the only mainstream BIM authoring tool with a Linux build and one of the few still sold on perpetual licences alongside subscription. V26 expanded IFC 4.3 export, IFC as XRef and point-cloud handling.

Vendor
Bricsys (Hexagon)
Current version
BricsCAD V26 · 2025
First release
2002
Official site
bricsys.com
Platforms
WindowsmacOSLinux
Deployment
desktopcloud
Pricing model
Mixed
Free tier
30-day trial; academic licences available.
Native formats
.dwg
Exchange formats
IFCDWGDXFRVTRFASKPDGNPDF
IFC
import: Yes · export: Yes
openBIM notes
V26 exports IFC 4.3 and can attach IFC files as external references (IFC as XRef). Industry-based project classification supports standard classification schemes. Model data lives in DWG, so any DWG-based tool can open the geometry.
Automation & APIs
LISPBRX (C++).NET APIVBABricsys 24/7 API
Learning curve
Medium — Easy for AutoCAD users to start; the BIM classification and IFC workflow is a new mental model.
Typical users
Architects moving from AutoCAD-style workflowsSmall and mid-size design officesSpecialty trades and infrastructure teams needing IFC 4.3

Key features

  • Direct 3D modelling with automatic BIM classification (BIMIFY)
  • DWG as the native project format
  • IFC 4.3 export and IFC as XRef import (V26)
  • BIM blocks and parametric components
  • Industry-based project classification aligned to standard schemas
  • Perpetual or subscription licensing; Bricsys 24/7 cloud collaboration

Strengths

  • Familiar AutoCAD-like commands and LISP compatibility
  • Perpetual licence option and Linux support
  • IFC 4.3 support ahead of many competitors

Limitations

  • Smaller content library and add-in ecosystem than Revit or Archicad
  • Documentation tooling is less automated than the market leaders
  • buildingSMART certification status could not be verified

Best for: Firms that want a lower-cost, DWG-compatible route into BIM with perpetual licensing and cross-platform support.

Market notes: Growing among small practices in Europe and Asia as an AutoCAD alternative; owned by Hexagon since 2018.

Official training & certification

Sources: augi.com/articles/detail/whats-new-in-bricscad-v26 · bricscad.octave.com/blog/bricscad-bim-v26-expands-ifc-capabilities-ifc4-3-and-ifc-as-xref-for-smarter · bricsys.com/licensing · help.bricsys.com/en-us/document/bricscad/installation-and-licensing/overview-of-licensing-options/license-types · Last verified 2026-09-15

Edificius

ACCA software
Italian all-in-one BIM suite with built-in real-time rendering, cost estimating and VR.BIM Authoring — Architecture & Building DesignSubscriptionWindowsIFC ⇄

Edificius is ACCA software's architectural BIM authoring tool. It bundles building modelling, interior and landscape design, MEP modelling, time-linked phasing, quantity-linked cost estimating and a real-time rendering engine in a single Windows application. It connects to ACCA's usBIM cloud platform and to PriMus for cost control. The product is best known in Italy and southern Europe, where ACCA's integrated suite covers design, estimating and site safety.

Vendor
ACCA software
Platforms
Windows
Deployment
desktopcloud
Pricing model
Subscription
Free tier
One-month free trial with full features and technical support.
Native formats
.edf
Exchange formats
IFCDWGDXFSKPOBJ3DSSTLSVGPLY
IFC
import: Yes · export: Yes · buildingSMART certification: IFC2x3 Coordination View 2.0 import and export (per ACCA); IFC4 certification is reported by third-party sources but was not confirmed on the vendor page
openBIM notes
Edificius is built around IFC exchange with ACCA's own usBIM platform and third-party tools. Models can be published to usBIM for browser-based viewing, federation and BCF issue management.
Learning curve
Medium — The interface is simpler than the market leaders, but the integrated estimating workflow needs ACCA-specific knowledge.
Typical users
ArchitectsBuilding surveyors and geometriSmall engineering and construction firms

Key features

  • Architectural, interior, landscape and MEP modelling in one application
  • Integrated real-time rendering and VR walkthroughs
  • Quantity take-off linked to PriMus cost estimating
  • Time-linked phasing (4D) inside the model
  • IFC 2x3 and IFC4 import/export with usBIM cloud publishing
  • Subscription with a full-feature one-month trial

Strengths

  • Very complete feature set for the price
  • Real-time rendering and VR without extra software
  • Tight link to ACCA estimating and site-management tools

Limitations

  • Windows only
  • Limited adoption outside southern Europe and Latin America
  • No public scripting API comparable to Revit or Archicad

Best for: Small and mid-size practices, especially in Italy and Spain, that want modelling, rendering and estimating in one affordable subscription.

Market notes: Widely used in Italy, where ACCA is the dominant estimating vendor; localised versions exist for Spain, France and Latin America.

Official training & certification

Sources: accasoftware.com/en/bim-architecture-software · intellicad.org/articles-and-press-releases/acca-edificius-new-version-available · bimtoolshub.com/edificius-by-acca-software · Last verified 2026-09-15

Chief Architect Premier

Chief Architect, Inc.
Residential and light-commercial 3D design software that produces framing, materials lists and construction documents.BIM Authoring — Architecture & Building DesignSubscriptionWindowsmacOS

Chief Architect Premier is a 3D home design application aimed at residential architects, designers and builders in North America. Walls, roofs, cabinets, framing and terrain are modelled as smart objects, and the program generates framing plans, materials lists, elevations and section details automatically. Version X18 (June 2026) added co-existing automatic and manual wall framing and expanded schedules. It is not usually described as a BIM platform in the ISO 19650 sense, but it is object-based, data-rich and widely used for house design.

Vendor
Chief Architect, Inc.
Current version
Chief Architect Premier X18 · 2026
First release
1992
Platforms
WindowsmacOS
Deployment
desktop
Pricing model
Subscription — USD 1,995 per year or USD 229 per month for Premier, as listed on chiefarchitect.com (2026).
Free tier
Trial available; Home Designer is the consumer product line.
Native formats
.plan.layout
Exchange formats
DWGDXFPDF
IFC
import: Not verified · export: Not verified
openBIM notes
Chief Architect is a residential design tool rather than an openBIM platform; IFC support is not documented in the vendor's import/export knowledge base and could not be verified. Exchange with other BIM tools normally goes through DWG/DXF and PDF.
Automation & APIs
Ruby scripting (macros)
Learning curve
Low — Designers produce a full house model within days; advanced framing and layout control take longer.
Typical users
Residential designersHome builders and remodelersInterior and kitchen designers

Key features

  • Automatic and manual wall, floor and roof framing
  • Materials lists and schedules generated from the model
  • Cabinet, kitchen and bath design libraries
  • Construction documents with site plans, sections and elevations
  • 3D Viewer export for client review on mobile
  • Subscription includes Support & Software Assurance

Strengths

  • Very fast for houses; automatic framing and roofs
  • Large manufacturer catalogue library
  • Windows and macOS

Limitations

  • IFC exchange not documented; weak fit for openBIM coordination
  • Residential focus; limited for large or complex buildings
  • Imperial-centric content and North American conventions

Best for: North American residential design where framing, materials lists and permit drawings matter more than multidiscipline coordination.

Market notes: Dominant among small residential design offices and builders in the USA and Canada.

Official training & certification

Sources: chiefarchitect.com/whats-new · chiefarchitect.com/products/upgrade.html · chiefarchitect.com/support/category/270/import-export.html · chiefarchitect.com/software-subscription · Last verified 2026-09-15

Autodesk Forma

Autodesk
Autodesk's cloud platform for early-stage site and building design with built-in environmental analysis.BIM Authoring — Architecture & Building DesignSubscriptionWeb browser

Autodesk Forma is a browser-based platform for the planning and schematic phases. Forma Site Design (from the former Spacemaker) sets up geolocated sites and runs sun, daylight, wind, noise and microclimate analyses. Forma Building Design, launched in April 2026, lets architects create building options with facades, floor plans and units and evaluate daylight and carbon before moving to Revit. Revit 2027 is the first Forma Connected Client, so designs move to Revit as native geolocated models. FormIt's conceptual modelling engine was folded into Forma's 3D Sketch mode.

Vendor
Autodesk
Current version
Forma (continuous cloud release); Forma Building Design launched April 2026 · 2026
First release
2023
Platforms
Web browser
Deployment
cloudweb
Pricing model
Subscription — Forma Site Design, Forma Building Design and Forma Board are included with Revit and AEC Collection subscriptions; standalone Forma Site Design was listed at about USD 185/month or USD 1,500/year in 2026 sources.
Free tier
30-day trial; included with AEC Collection and Revit subscriptions.
Exchange formats
RVT (via Revit add-in and Forma Connected Client)
IFC
import: Not verified · export: Not verified
openBIM notes
Forma is Autodesk's cloud platform rather than an openBIM tool. Its documented exchange route is into Revit, which then handles IFC; native IFC support in Forma could not be verified.
Automation & APIs
Forma Extensions SDK and API
Learning curve
Low — Designers are productive within hours; the analyses need some understanding of their assumptions.
Typical users
Architects and urban designersDevelopers and feasibility teamsSustainability consultants

Key features

  • Geolocated site setup with terrain and context in minutes
  • Sun, daylight, wind, noise and microclimate analyses
  • Forma Building Design: facades, floor plans, units and area metrics
  • Forma Carbon Insights and embodied-carbon analysis
  • Forma Board for design presentation
  • Direct hand-off to Revit through the Forma Connected Client

Strengths

  • No installation; runs in the browser
  • Fast environmental analysis for option comparison
  • Bundled with Revit and the AEC Collection

Limitations

  • Not a documentation or construction-stage tool
  • Exchange centred on Revit; open-format support unclear
  • Feature set changes continuously with cloud releases

Best for: Feasibility, massing and schematic design in Autodesk-centred practices that will continue in Revit.

Market notes: Adoption follows the Revit and AEC Collection base; Autodesk positions it as the cloud front end for the whole AEC portfolio.

Official training & certification

Sources: blogs.autodesk.com/forma/2026/04/07/introduction-to-forma-building-design · blogs.autodesk.com/forma/2026/04/14/connect-your-design-workflows-with-forma-building-design · adsknews.autodesk.com/en/news/autodesk-design-and-make-intelligence · blogs.autodesk.com/forma/2025/02/20/bringing-together-formit-pro-and-forma-capabilities · autodesk.com/products/forma-for-buildings/buy · Last verified 2026-09-15

Bentley OpenBuildings Designer

Bentley Systems
Bentley's multidiscipline building design application built on MicroStation, successor to AECOsim.BIM Authoring — Architecture & Building DesignSubscriptionWindowsIFC ⇄

OpenBuildings Designer is Bentley's multidiscipline BIM authoring tool for architecture, structure, mechanical and electrical design. It was renamed from AECOsim Building Designer in 2018 and runs on the MicroStation platform, which gives it strong DGN referencing, large-model handling and ProjectWise integration. It includes OpenBuildings Speedikon for German and European markets, GenerativeComponents for computational design, and built-in EnergyPlus-based energy analysis. It is most common on infrastructure-related buildings such as stations, airports and plants where Bentley tooling is already in use.

Vendor
Bentley Systems
Current version
OpenBuildings Designer 2024 (Update 2024.3)
First release
2018
Platforms
Windows
Deployment
desktopcloud
Pricing model
Subscription — 12-month Virtuoso practitioner licence listed at USD 3,844 on Bentley's eStore (2026); price varies by region.
Free tier
Student licences via Bentley Education; Virtuoso subscriptions include training Keys.
Native formats
.dgn
Exchange formats
DWGIFCRFASKPCOBieCIS/2SDNFPDFi-model
IFC
import: Yes · export: Yes
openBIM notes
Built on MicroStation, so it inherits DGN referencing and ProjectWise integration; IFC and COBie are supported exchange formats. Current buildingSMART certification could not be verified for the OpenBuildings name (the predecessor AECOsim Building Designer held IFC2x3 certification).
Automation & APIs
MicroStation MDL and .NET APIsVBAGenerativeComponents (computational design)
Learning curve
Very high — Requires MicroStation fundamentals before the building tools make sense.
Typical users
Architects and engineers in infrastructure firmsRail, airport and industrial building teamsBentley/ProjectWise-based organisations

Key features

  • Architectural, structural, mechanical and electrical modelling in one application
  • MicroStation DGN references and ProjectWise integration
  • GenerativeComponents parametric and visual programming
  • Energy Services with EnergyPlus whole-building analysis
  • Pipe system sizing and single-line to 3D promotion (2024.2)
  • DWG, IFC, RFA, SKP, COBie and CIS/2 exchange

Strengths

  • Handles very large federated DGN models
  • All building disciplines in one product
  • Deep integration with Bentley's infrastructure portfolio

Limitations

  • Small user community compared with Revit and Archicad
  • Release cadence is slower; latest confirmed release line is 2024
  • MicroStation-based interface is unfamiliar to most architects

Best for: Buildings inside larger infrastructure programmes where MicroStation, ProjectWise and OpenRoads already form the toolset.

Market notes: Used mainly by large engineering firms and transport authorities that standardise on Bentley software.

Official training & certification

Sources: bentley.com/software/openbuildings-designer · en.virtuosity.com/openbuildings-designer · bentleysystems.service-now.com/community?id=kb_article_view&sysparm_article=KB0047910 · docs.bentley.com/LiveContent/web/OpenBuildings%20Designer-v2024.2/Help/en/index.html · Last verified 2026-09-15

SketchUp (Pro / Studio)

Trimble
Fast conceptual 3D modeller that becomes BIM-capable through IFC export, Trimble Connect and extensions.BIM Authoring — Architecture & Building DesignSubscriptionWindowsmacOSiPadOSIFC ⇄

SketchUp is Trimble's push-pull 3D modelling tool, used by architects for concept design, massing and presentation. With SketchUp Pro or Studio users get LayOut for documentation, IFC import and export, Revit import (Studio) and Trimble Connect collaboration; extensions such as PlusSpec turn it into a lightweight BIM authoring environment for residential and small commercial work. SketchUp 2026.0 (October 2025) reworked IFC export and added Trimble Connect-based collaboration invites. It is most often used ahead of, or alongside, a full BIM platform.

Vendor
Trimble
Current version
SketchUp 2026.0 · 2025
First release
2000
Platforms
WindowsmacOSiPadOSWeb browser
Deployment
desktopwebmobilecloud
Pricing model
Subscription — 2026 third-party listings show Go at USD 129/year, Pro at USD 399/year and Studio at USD 819/year; SketchUp Free remains a non-commercial web version.
Free tier
SketchUp Free (web, non-commercial); SketchUp for Schools and education plans.
Native formats
.skp.layout
Exchange formats
IFCDWGDXFRVT (import, Studio)OBJFBXDAE3DSSTLglTFKMZPDF
IFC
import: Yes · export: Yes
openBIM notes
SketchUp is not a full BIM authoring platform by itself. Native IFC export in 2026.0 merges IFC 2x3 and IFC4 into one exporter with an options dialog and a standard spatial hierarchy toggle. Extensions such as PlusSpec add wall assemblies, framing and quantities, and Trimble Connect provides cloud sharing and model review.
Automation & APIs
Ruby APIC APIExtension Warehouse
Learning curve
Low — Basic modelling is learned in a day; BIM-grade classification and extension workflows take longer.
Typical users
Architects and designers in concept stageInterior and landscape designersBuilders using PlusSpec for residential BIM

Key features

  • Push-pull direct modelling with components and groups
  • LayOut for 2D documentation from the model
  • Unified IFC 2x3/IFC4 export with spatial-hierarchy scaffolding (2026.0)
  • Revit importer and point-cloud tools in Studio
  • Trimble Connect sharing, viewing and commenting
  • Extension Warehouse (PlusSpec, Skalp, Quantifier and others)

Strengths

  • Easiest 3D modeller to learn in the category
  • Huge 3D Warehouse content library and extension ecosystem
  • Runs on desktop, web and iPad

Limitations

  • No native parametric building elements or schedules without extensions
  • IFC data quality depends on user classification discipline
  • Large detailed models become slow

Best for: Concept design, massing and presentation, or lightweight BIM for small projects when combined with extensions and Trimble Connect.

Market notes: One of the most widely installed 3D tools in architecture worldwide; PlusSpec is popular with Australian and North American home builders.

Official training & certification

Sources: help.sketchup.com/en/release-notes/sketchup-desktop-20260 · cgchannel.com/2025/10/trimble-releases-sketchup-2026-0 · extensions.sketchup.com/extension/9b57be63-0815-4339-b253-def72957a69a/plus-spec-pro-for-architects-and-builders · help.sketchup.com/en/sketchup-subscriptions · vagon.io/blog/sketchup-pricing · Last verified 2026-09-15

VisualARQ (BIM for Rhino)

Asuni
Adds parametric BIM objects, levels, documentation and IFC to Rhino 7 and Rhino 8.BIM Authoring — Architecture & Building DesignPerpetual licenceWindowsIFC ⇄

VisualARQ is an architectural BIM plug-in for Rhinoceros developed by Asuni in Barcelona. It adds walls, slabs, roofs, stairs, openings, spaces, levels and 2D documentation to Rhino's free-form modeller, and it exchanges models through IFC 2x3 and IFC4. Version 3 (October 2024) brought more than a thousand user-requested changes, faster IFC handling and improved level management. Its Grasshopper Styles let users define custom parametric building objects from Grasshopper definitions. It suits practices whose design work lives in Rhino but who still need BIM deliverables.

Vendor
Asuni
Current version
VisualARQ 3 · 2024
Official site
visualarq.com
Platforms
Windows
Deployment
desktop
Pricing model
Perpetual licence — USD 795 commercial, USD 475 upgrade, USD 95 educational, as listed on visualarq.com (2026).
Free tier
Free trial; educational and 30-seat lab licences.
Native formats
.3dm
Exchange formats
IFCDWGDXFOBJFBXSKPPDF
IFC
import: Yes · export: Yes
openBIM notes
VisualARQ ships a built-in IFC import/export plug-in for IFC 2x3 and IFC4 and exposes object properties for IFC mapping. It turns Rhino into a BIM authoring tool; Rhino itself is covered in the computational and 3D modelling categories.
Automation & APIs
Grasshopper components and Grasshopper StylesVisualARQ API (.NET)RhinoScript / Python via Rhino
Learning curve
Medium — Straightforward for Rhino users; newcomers must learn Rhino first.
Typical users
Architects who design in RhinoComputational designersStudents and schools

Key features

  • Parametric building objects inside Rhino (walls, slabs, roofs, stairs, curtain walls, spaces)
  • Levels, sections, plan views and tables for documentation
  • IFC 2x3 and IFC4 import and export
  • Grasshopper Styles for custom parametric objects
  • Perpetual licensing at a low price point
  • Compatible with Rhino 7 and Rhino 8

Strengths

  • Complex geometry handled natively by Rhino
  • Grasshopper integration for parametric objects
  • Inexpensive perpetual licence

Limitations

  • Documentation tooling is lighter than full BIM platforms
  • Windows-only support could not be ruled out for macOS; vendor page does not list Mac explicitly
  • Small vendor; certification status unverified

Best for: Design-driven practices that want free-form geometry and BIM data in one Rhino environment without moving to a separate authoring platform.

Market notes: Niche but established among Rhino-based practices in Europe and Latin America and in architecture schools.

Official training & certification

Sources: visualarq.com · blog.rhino3d.com/2024/10/visualarq-3-is-here.html · food4rhino.com/en/app/visualarq · Last verified 2026-09-15

Autodesk FormIt

Autodesk
Retired Autodesk conceptual modeller; its capabilities moved into Forma.BIM Authoring — Architecture & Building DesignSubscriptionWindowsDiscontinued

FormIt was Autodesk's intuitive sketch-based massing and conceptual design tool with a direct link to Revit. FormIt Pro was withdrawn from sale and renewal in April 2024; FormIt Web and FormIt for iPad were taken offline after 31 August 2024, and only FormIt for Windows is maintained, until 2027, for critical security fixes. Autodesk folded FormIt's conceptual modelling into Forma, so new users should start in Forma Site Design or Forma Building Design. Existing .axm files can still be opened in the Windows build during the maintenance period.

Vendor
Autodesk
First release
2012
Platforms
Windows
Deployment
desktop
Pricing model
Subscription
Native formats
.axm
Exchange formats
RVT (via Revit add-in)SKPOBJSATDWG
IFC
import: Not verified · export: Not verified
openBIM notes
FormIt was an Autodesk-ecosystem conceptual modeller with a Revit round-trip rather than an openBIM tool. Its modelling engine now powers the 3D Sketch mode inside Autodesk Forma.
Automation & APIs
Dynamo in FormIt (historical)
Learning curve
Low — Not relevant for new learners; effort should go to Forma.
Typical users
Former FormIt Pro subscribers migrating to Forma

Key features

  • Sketch-based massing with real-time area and levels
  • Solar and energy analysis in early design (historical)
  • Round-trip to Revit through the FormIt add-in
  • Windows build maintained for security fixes until 2027

Strengths

  • Legacy files remain readable in the Windows build until 2027

Limitations

  • No longer sold, renewed or developed
  • Web and iPad versions offline since August 2024
  • No feature updates; security fixes only

Best for: Nothing new; use Forma. Keep the Windows build only to access legacy .axm projects.

Market notes: Historically used by Revit-centred practices for massing; user base has moved to Forma.

Official training & certification

Sources: formit.autodesk.com/blog/post/an-update-on-the-future-of-formit · blogs.autodesk.com/forma/2025/02/20/bringing-together-formit-pro-and-forma-capabilities · autodesk.com/products/formit/overview · Last verified 2026-09-15

Snaptrude

Snaptrude, Inc.
Browser-based, AI-assisted concept-to-BIM design tool that hands models to Revit.BIM Authoring — Architecture & Building DesignFreemiumWeb browserIFC ⇨

Snaptrude is a collaborative, browser-based BIM design application aimed at the early stages of architecture projects. Teams sketch massing and floor plans, generate options from a space programme with AI assistance, run site and area analyses, and then export native Revit models or IFC for detailed design. It imports RVT, DWG and SKP files directly in the browser and syncs with Revit through the Snaptrude Manager add-in. Its free plan makes it a common first BIM tool for students and small studios.

Vendor
Snaptrude, Inc.
Current version
Snaptrude (continuous cloud release) · 2026
Official site
snaptrude.com
Platforms
Web browser
Deployment
webcloud
Pricing model
Freemium — Free plan (3 projects), Individual USD 60/month, Organization USD 100/user/month billed annually, Enterprise custom, as listed on snaptrude.com (2026).
Free tier
Free plan with 3 projects, basic BIM and Revit export, single user.
Exchange formats
RVTIFCDWGSKPPDF
IFC
import: Not verified · export: Yes
openBIM notes
Snaptrude exports IFC and native RVT and imports RVT, DWG and SKP in the browser; a Snaptrude Manager add-in provides bidirectional sync with Revit. It is positioned for concept and schematic design, not construction documentation.
Automation & APIs
Open API (Enterprise plan)AI agents that generate models from space programmes
Learning curve
Low — SketchUp-like interaction makes it quick to learn; the Revit hand-off needs some BIM understanding.
Typical users
Architects in concept and schematic designDevelopers and feasibility teamsStudents

Key features

  • Real-time multi-user modelling in the browser
  • AI generation of BIM-compliant models from room schedules or programmes
  • Native RVT export and bidirectional Revit sync
  • IFC, DWG and PDF export; RVT, DWG and SKP import
  • Site analysis and area/unit metrics
  • Free plan with no time limit

Strengths

  • No installation; works on any modern browser
  • Strong Revit hand-off
  • Free entry tier

Limitations

  • Not suited to detailed authoring or construction documentation
  • Model size limits on browser import
  • Young product; features change quickly

Best for: Early-stage collaborative design that must land in Revit without remodelling.

Market notes: Venture-backed US/India company; adoption concentrated among early-adopter practices and education.

Official training & certification

Sources: snaptrude.com/pricing · snaptrude.com/snaptrude-revit · bimtoolshub.com/snaptrude · Last verified 2026-09-15

Training guidelines & learning paths

A four-stage path per category, with skills, exercises, free resources and the official vendor certifications worth pursuing.

🏛️ Architectural BIM Authoring: from first model to multi-platform lead

Estimated hours: 160
For architects, technologists and BIM modellers who need to produce reliable building models and documentation in a BIM authoring platform and exchange them with other disciplines. Learners start in one platform (Revit or Archicad), add openBIM exchange and coordination skills, and finish able to standardise, automate and govern authoring across several tools in a practice.BIM ModelerArchitectural TechnologistBIM CoordinatorBIM Manager

Prerequisites: Reading architectural drawings (plans, sections, elevations) · Basic understanding of building construction · Comfortable with Windows or macOS file management · Access to an education or trial licence of Revit or Archicad

Level 1

Foundation

30 h
Skills you will build
  • Explain what BIM authoring is and how it differs from CAD drafting, viewers and coordination tools
  • Navigate the interface, views and project browser of Revit or Archicad
  • Model levels, grids, walls, floors, roofs, doors and windows using building elements
  • Identify native and exchange file formats (.rvt/.rfa, .pln, .vwx, .dwg, IFC) and what each is for
  • Describe the main products in the category, their vendors, platforms and pricing models

Software focus: Autodesk Revit, Graphisoft Archicad, SketchUp (Pro / Studio)

Practice exercises
  • Model a two-storey house from a given plan and section set in Revit or Archicad, with correct levels and wall build-ups
  • Produce a plan, two sections and an elevation on sheets with a titleblock
  • Mass the same house in SketchUp, classify the components with IFC types and export an IFC file
  • Write a one-page comparison of three authoring tools covering vendor, OS support, licensing model and IFC support

Outcome: The learner can build a simple, correctly structured building model in one platform and explain where each tool in the category fits.

Level 2

Practitioner

45 h
Skills you will build
  • Set up a project from a template with units, view templates, layers or worksets and naming conventions
  • Create and edit parametric content (Revit families or Archicad GDL objects and composites)
  • Produce schedules, quantities, room or zone data and annotated documentation from the model
  • Work in a shared model (Revit worksharing or Archicad Teamwork on BIMcloud) with proper synchronisation habits
  • Export and import DWG, PDF and IFC with the right settings for each recipient

Software focus: Autodesk Revit, Graphisoft Archicad, Vectorworks Architect, BricsCAD BIM

Practice exercises
  • Build a project template with view templates, sheet naming and a starter family or object library
  • Create a parametric window family (Revit) or GDL window object (Archicad) with three configurable sizes
  • Set up a workshared or Teamwork project for two users and complete a wall-and-door change without conflicts
  • Export the model to IFC4 Reference View and to DWG, then open both in a free viewer and record what data survived
  • Repeat a small model in BricsCAD BIM or Vectorworks to experience a second platform's workflow

Outcome: The learner can deliver a coordinated documentation set from a shared model and produce clean exchange files for consultants.

Level 3

Professional

50 h
Skills you will build
  • Configure IFC export mapping (Revit export setups and property-set mapping; Archicad translators) for specific consultants
  • Manage BCF issue rounds between different authoring tools and a checker such as Solibri or BIMcollab
  • Apply ISO 19650 concepts: information requirements, BIM execution plan, container naming and shared coordinates
  • Validate models against an IDS and fix classification and property gaps at source
  • Plan concept-to-BIM hand-overs from Forma, Snaptrude, SketchUp or Rhino/VisualARQ into the authoring platform
  • Diagnose common problems: wrong origin, missing storeys, duplicated elements, broken links

Software focus: Autodesk Revit, Graphisoft Archicad, Allplan, Autodesk Forma, Snaptrude, VisualARQ (BIM for Rhino)

Practice exercises
  • Write the exchange section of a BIM execution plan for an architect in Archicad and a structural engineer in Revit
  • Export the same model from two platforms, federate both in Solibri or BIMcollab Zoom and reconcile the differences
  • Run a BCF issue cycle: create issues in a checker, resolve them in the authoring tool and close them
  • Author a small IDS for wall fire ratings and classification, validate an IFC export against it and fix the failures
  • Take a Forma or Snaptrude concept model into Revit and a Rhino/VisualARQ model into Archicad, preserving levels and grids

Outcome: The learner can lead openBIM exchange on a multi-platform project and resolve coordination issues at the authoring source.

Level 4

Expert

35 h
Skills you will build
  • Automate repetitive authoring tasks with Dynamo, pyRevit or the Revit API, and with GDL, the Python API or Grasshopper in Archicad
  • Design and govern practice-wide templates, content libraries and classification standards across more than one platform
  • Manage large-model performance: model segmentation, linking strategy, worksets or drawing-file structures, hardware and graphics settings
  • Plan deployment, version pinning, licensing and cloud collaboration (BIMcloud, Autodesk cloud worksharing, Bimplus)
  • Evaluate emerging tools (Forma Building Design, AI assistants, MCP connectors) and decide where they fit the pipeline

Software focus: Autodesk Revit, Graphisoft Archicad, Allplan, BricsCAD BIM, VisualARQ (BIM for Rhino)

Practice exercises
  • Write a Dynamo or pyRevit script that checks and fills a required parameter on every wall and reports failures
  • Create a GDL object or Grasshopper Style with calculated properties that appear in schedules
  • Audit a slow project, split it into linked models and document the before/after open times
  • Draft a practice standard covering versions, templates, classification and cloud collaboration for both Revit and Archicad teams
  • Pilot the Revit 2027 Forma Connected Client or the Archicad AI Assistant and write a recommendation memo

Outcome: The learner can standardise, automate and govern BIM authoring for a practice that runs several platforms.

Official certifications

Tips from our consultants

  • Learn one platform properly before adding a second; the concepts transfer but the habits do not.
  • Always check your IFC export in a neutral viewer before sending it; certification covers the software, not your settings.
  • Agree shared coordinates, levels and naming in the BIM execution plan before anyone models a wall.
  • Keep templates, content and scripts in version control and pin software versions per project.
  • Use the free tiers and trials (Snaptrude, SketchUp Free, Revit and Archicad education licences) to practise exchange between tools.
  • Treat AI assistants and cloud connectors as tech previews until your practice has tested them on a real project.

Take the exam for this track

Prove it with a free certificatePass a timed exam in any track at Foundation, Practitioner, Professional or Expert level and receive a verifiable ConstruBIM Academy certificate.

About this database

Product names are trademarks of their respective owners. Facts are verified against vendor documentation and dated sources; pricing is described by model only. Spotted an error or a missing tool? Write to [email protected] and we will correct it. Database updated: 2026-09-15.