OpenCADStudio
by HakanSeven12
Open CAD Studio is a free CAD program for 2D technical drawing and 3D solid modelling. It opens and saves DWG and DXF files and runs as a desktop app or in a web browser.
- Stars
- 3.6k
- Licence
- GPL-3.0
- Runs on
- Your computer
- Setup
- Easy
- Language
- Rust
- Age
- 220 days
What you can do with it
- Open, edit and save DWG and DXF drawings without a conversion service
- Draw 2D plans with layers, blocks, dimensions and paper-space layouts, then plot to PDF
- Build 3D solids and export them as STL or STEP for printing or manufacturing
Make money with it
A freelancer could offer drawing clean-up, file conversion or simple floor-plan drafting services using free software instead of a paid CAD licence.
An idea, not financial advice. Check the licence before charging for anything built on it.
Ways a business could use it
- Replace paid CAD licences for viewing and editing client DWG and DXF files
- Prepare 3D models and export STL files for prototyping or 3D printing jobs
Can you use it commercially?
Free to use. Anything you distribute that includes it must be open-sourced under the same licence.
Not legal advice. Read the project's licence file before building a product on it.
Getting it running
Download the Windows installer or portable exe, Linux AppImage or macOS Apple Silicon disk image from the releases page, or use the web app with no installation.
Follow the official instructions in the project README.
Things to check
- Under active development, so back up important production drawings
- macOS app is not notarised by Apple and the Snap package is not in the Snap Store
- Windows and Linux builds are x86-64 only; macOS is Apple Silicon only
- GPL-3.0 licence has conditions if you redistribute modified versions
Who's talking about it
- José da Cruz: GitHub Weekly: This Week in Rust (October 12 – October 18, 2026) Featured in a roundup
Checked 28 Oct 2026. Summary drafted by AI from the project's README.
