HakanSeven12/OpenCADStudio

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Open-source 2D drafting and 3D modeling for desktop and web, built with Rust.

Launch the web app · Download the desktop app · Join the discussion

Open CAD Studio is a cross-platform application for technical drawing, layout work, and solid modeling. It reads and writes DWG and DXF drawings natively, with a shared editing core across the desktop and browser versions.

The project is under active development. Keep backups of important production drawings and report reproducible problems through GitHub Issues.

• Native drawing workflow — open, edit, recover, and save DWG and DXF files without a conversion service.
• Precise 2D drafting — lines, polylines, curves, splines, hatches, object snaps, tracking, layers, blocks, and external references.
• Documentation tools — text, dimensions, leaders, tolerances, tables, model space, paper space, viewports, and plot styles.
• Kernel-backed 3D modeling — solid primitives, extrusion, revolution, sweep, loft, Boolean operations, and ACIS entity tessellation.
• GPU rendering — accelerated 2D and 3D viewports through wgpu, with orthographic and perspective cameras.
• Extensible workflows — native plugins, command scripts, headless conversion, and a line-based JSON automation API.

Use the web app for immediate access with no installation. Drawings are selected through the browser and saved as local downloads.

Use the desktop application for native file associations, file-manager thumbnails, system printing, PDF output, external plugins, command scripts, and headless automation. Release builds are available for Windows, Linux, and Apple Silicon macOS.

Download all current packages from the latest release.

Choose one of these signed x86-64 packages:

• OpenCADStudio-*-windows-x86_64-installer.msi — recommended installer with Start Menu shortcuts, DWG/DXF file associations, and drawing thumbnails.
• OpenCADStudio-*-windows-x86_64-portable.exe — standalone application; no installation required.

Download the x86-64 AppImage, make it executable, and run it:

chmod +x OpenCADStudio-*-linux-x86_64.AppImage
./OpenCADStudio-*-linux-x86_64.AppImage

Or install it as a Flatpak from FlatPark, which installs the official AppImage and follows new releases:

flatpak remote-add --if-not-exists flatpark https://dl.flatpark.org/flatpark.flatpakrepo
flatpak install flatpark io.github.HakanSeven12.OpenCadStudio

The Flatpak opens and saves drawings through the file chooser. External references and underlays that point at other files need home access:

flatpak override --user --filesystem=home io.github.HakanSeven12.OpenCadStudio

Each release also carries a snap. It is not in the Snap Store yet, so snapd installs it only with --dangerous, and it does not update itself:

sudo snap install --dangerous OpenCADStudio-*-linux-x86_64.snap

The published macOS package supports Apple Silicon:

1. Download OpenCADStudio-*-macos-arm64.dmg.
2. Open the image and drag OpenCADStudio.app into Applications.
3. If Gatekeeper blocks the first launch, approve the app from System Settings → Privacy & Security.

The application is ad-hoc signed but is not currently notarized by Apple.

Open CAD Studio can follow the system language or use any of these 22 interface languages:

Arabic · Brazilian Portuguese · Bulgarian · Czech · Dutch · English · Finnish · French · German · Greek · Hindi · Hungarian · Italian · Japanese · Korean · Lao · Polish · Russian · Simplified Chinese · Spanish · Traditional Chinese · Turkish

Change the language from the application settings. The browser version also uses the browser's preferred locale when System is selected.

Requirements:

• Git
• Current stable Rust toolchain
• Platform graphics and font development libraries

On Ubuntu or Debian, install the native dependencies with:

sudo apt update
sudo apt install libgl1-mesa-dev libx11-dev libxcursor-dev libxi-dev \
  libxrandr-dev libxkbcommon-dev libwayland-dev libfontconfig1-dev \
  libfreetype6-dev

Then build and run:

git clone https://github.com/HakanSeven12/OpenCADStudio.git
cd OpenCADStudio
cargo build --release --bin OpenCADStudio

The resulting binary is written to target/release/OpenCADStudio (OpenCADStudio.exe on Windows).

Install the WebAssembly target and build tools once:

rustup target add wasm32-unknown-unknown
cargo install trunk wasm-bindgen-cli

Start the development server:

trunk serve

The desktop binary supports one-shot conversion, a persistent headless server, and a client-neutral MCP endpoint for AI applications:

OpenCADStudio --export input.dwg output.dxf
OpenCADStudio --export input-r12.dxf output.dwg --target-version R14
OpenCADStudio --serve
OpenCADStudio --serve --port 4242
OpenCADStudio --mcp

The automation server exchanges one JSON object per line over standard input/output or a local TCP socket. The self-contained MCP endpoint exposes the live desktop editor through the same tools to every compatible client. Its audit and save_verified operations check an explicit DWG/DXF target version, lossy records, raw DXF handle references, reopen the output, compare its semantic manifest, and return a SHA-256 hash. To connect a client, configure it to launch OpenCADStudio --mcp. See the MCP control guide.

Desktop plugins run in separate processes and communicate with the host through the versioned plugin API. The browser build does not load native plugins.

• Plugin architecture
• Plugin template
• Plugin registry

• Automation API
• Plugin architecture
• Tessellation pipeline
• Security policy

Bug reports, focused pull requests, translations, documentation improvements, and plugin contributions are welcome.

• Search existing issues before opening a new report.
• Use Discussions for questions and ideas.
• Report vulnerabilities privately by following the security policy.

Application translations live in locales/*/opencadstudio.ftl; source labels map through src/locale_catalog.rs. After editing translations, run python3 scripts/export-locales.py to refresh web and desktop packaging labels. Validate with python3 scripts/test_site.py and cargo test --lib i18n::tests.

If Open CAD Studio helps your work, support continued development through GitHub Sponsors or Patreon.

Open CAD Studio is distributed under the GNU General Public License v3.0.