IntelliCAD
IntelliCAD is commercial 2D/3D CAD software and a development platform for CAD solutions.
What IntelliCAD is
IntelliCAD is commercial 2D/3D CAD software and a development platform for CAD solutions. It reads and writes native DWG files, with legal compatibility described for releases 2.6 through 2020, and supports DXF files and PDF underlays. Development interfaces include LISP, DCL, VBA, COM, .NET, and C++ extensions. IntelliCAD 15 adds Drawing Compare, AI feature previews, and a modernized LISP API. In supported versions, the AI preview can connect with Claude, Google Antigravity, or ChatGPT to query drawings and run generated LISP code. BIM tools can attach IFC, Revit RVT, and Revit RFA files as underlays and access model data. Version 15 requires 64-bit Windows 10 or Windows 11; the Mobile Viewer is available for Windows desktop and Android. The IntelliCAD Technology Consortium, founded in 1999 in Portland, licenses the technology to commercial members who support end users. Pricing is on request, with a free trial available.
Good
- Reads and writes native DWG files
- Provides multiple development APIs and extensions
- Includes Drawing Compare in version 15
- Offers BIM underlay tools for IFC and Revit
- Has a free trial
Watch out
- No free plan
- Pricing is available on request
- Version 15 requires 64-bit Windows 10 or 11
- ITC does not directly support end users
Who it suits
IntelliCAD suits architects, designers, engineers, surveyors, CAD users, and developers building CAD products. End-user support comes from the commercial member that sold the IntelliCAD-based product.
Verdict
IntelliCAD combines desktop CAD capabilities with APIs for companies developing their own CAD solutions. Check member support arrangements and platform requirements before selecting a specific IntelliCAD-based product.
Plans and prices
From IntelliCAD's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| API Membership | $1,000 a year | Development resources; no source code access; no right to distribute IntelliCAD technology · Annual fee |
| Government Membership | $35,000 a year | Government membership tier · Annual fee |
| Royalty Membership | $38,000 a year | Commercial membership; source code access; worldwide distribution rights · Annual fee plus $25 per-copy royalty |
| Royalty-Free Membership | $75,000 a year | Commercial membership; source code access; worldwide royalty-free distribution rights · Annual fee |
The facts
Each one read from IntelliCAD's own pages, with the date it was checked.
What it does
- AI integrations
- For supported versions, the AI preview can connect with Claude, Google Antigravity, or ChatGPT to query drawings and run generated LISP code.checked 11 Oct 2026
- Audience
- The ITC licenses IntelliCAD to commercial members, who market and support products for architects, designers, engineers, surveyors, and other CAD users.checked 11 Oct 2026
- BIM formats
- The BIM SIG provides tools to attach IFC, Revit RVT, and Revit RFA files as underlays and access their model data.checked 11 Oct 2026
- Development tools
- The platform provides APIs and tools including LISP, DCL, VBA, COM, .NET, and C++ extensions.checked 11 Oct 2026
- DWG compatibility
- The platform reads and writes native DWG files; the current legal page describes compatibility with DWG releases 2.6 through 2020.checked 11 Oct 2026
- IntelliCAD 15
- Version 15 adds Drawing Compare and AI feature previews, and completes modernization of its LISP API.checked 11 Oct 2026
- Product
- IntelliCAD is commercial 2D/3D CAD software and a development platform for building CAD solutions.checked 11 Oct 2026
- Security and privacy
- The privacy policy says ITC uses safeguards to protect personal information and encryption on login-page data transmissions, while noting it cannot guarantee complete security.checked 11 Oct 2026
- Support
- ITC does not directly support end users; the commercial member that sold the IntelliCAD-based product handles its customer support.checked 11 Oct 2026
The company
- Company
- The IntelliCAD Technology Consortium is a member-directed nonprofit founded in 1999.checked 11 Oct 2026
- Headquarters
- Portland, Oregon, United Stateschecked 4 Oct 2026
Money
- Developer trial
- Qualified CAD developers may request free access to the IntelliCAD platform and API for 90 days; end users are directed to member companies for trials.checked 11 Oct 2026
Where it runs
- Platform requirements
- IntelliCAD 15 requires 64-bit Windows 10 or Windows 11; its Mobile Viewer is available for Windows desktop and Android.checked 11 Oct 2026
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