Free, AI-native, GPU-accelerated interface design tool built in Rust. Works with Figma files (.fig read/write), imports and exports W3C DTCG design tokens, and ships an MCP server so Claude Code, Codex or Gemini CLI can edit the canvas. macOS, Windows, Linux.
Why we recommend it
DESIGN:OS Studio is a free interface design tool built in Rust for AI-native work. It reads/writes Figma .fig files, imports and exports W3C DTCG design tokens, and ships an MCP server so Claude Code, Codex or Gemini CLI can edit the canvas. Source-available (PolyForm Shield). Tags: ui-design, design-tool, ai, mcp, design-tokens, rust, free.
Keep in mind
- I don't know this tool well enough to state verified drawbacks.
DESIGN:OS Studio alternatives and related tools
Accessibility Insights
Microsoft's free accessibility testing tool with guided manual assessment.
Free
Adobe XD
For designers already inside Adobe Creative Cloud, XD integrates seamlessly with Photoshop and Illustrator for asset-heavy workflows.
Paid
AI Icon Creator
Generates app icons from a text prompt or an uploaded picture in 14 curated styles, with area edits,…
Freemium