Open Source Online Design Tools
A curated collection of the best open source web-based tools for creating graphics and designs.
Collaborative whiteboard with a hand-drawn aesthetic
Stars
131,673Last commit
1 day agoLicense
MIT
Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.
Open Source Alternative to:
Open-source UI design and prototyping for product teams
Stars
59,922Last commit
1 day agoLicense
MPL-2.0
Design, prototype, and hand off to developers in one platform. Supports design systems, tokens, flexible layouts, and AI workflows with real CSS/HTML output.
Open Source Alternative to:
Free instant whiteboard with real-time collaboration
Stars
50,322Last commit
15 hours agoLicense
Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.
Open Source Alternative to:
Procedural vector editor that runs in your browser, no signup needed
Stars
27,215Last commit
8 hours agoLicense
Apache-2.0
A free, open source vector graphics editor built around nondestructive, node-based design. Runs locally in the browser, exports SVG, PNG, and JPG.
Open Source Alternative to:
ScreenshotOne – The screenshot API for developers. Render screenshots in one simple API call
ScreenshotOne