onUI vs Windsurf
A side-by-side comparison of onUI and Windsurf — pricing, license, deployment, and where each tool wins.
onUI
github.com
Open-source browser extension and MCP server for annotation-first UI pair programming with AI agents. Works with Claude Code, Cursor, Windsurf, Copilot. Chrome, Edge, Firefox. Free, GPL-3.0.
Windsurf
windsurf.com
An AI-native IDE that combines code editing with advanced AI assistance throughout the development process.
| Feature | onUI | Windsurf |
|---|---|---|
| Pricing | Freemium | Freemium |
| Model | Freemium | Freemium |
| License | Proprietary | Proprietary |
| Deployment | Cloud | Cloud |
| Category | Code & Development | Code & Development |
| Self-hosted | ✕No | ✕No |
| Free tier | ✓Yes | ✓Yes |
Pick onUI if…
- ✓You prefer onUI's feature set or ecosystem fit.
Pick Windsurf if…
- ✓You prefer Windsurf's feature set or ecosystem fit.