Design and diagrams
AI Designer alternatives
2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.
The projects
onlook-dev/onlook★26,437 GitHub starsApache-2.0 licenceAI-first visual editor to build, style, and edit React apps with AI.Open on GitHub ↗ZSeven-W/openpencil★4,675 GitHub starsMIT licenceAI-native vector design tool converting prompts into editable UI on a live canvas.Open on GitHub ↗
What you give up either way
- MCP server integrations and turnkey agent pairing flows
- Pro features like publish/unlimited websites and domain connections
- Unlimited WebGL effects, advanced image tooling, and priority support
- Any proprietary prompt engineering and curated 'ultradesign' workflows
An open-source project doing the core job proves a replacement is possible. It does not prove it matches AI Designer, and it does not prove anyone has run it for a month. How we decide.