
Sonar is the browser for developers.
Sonar is a fully-fledged browser experience with a built in terminal, MCP, and port detection.
When you're running your dev server, Sonar filters out noise and shows you exactly what matters. Vite on 5173? Right there. But Discord? No. Unnecessary ports are automatically detected and filtered out. Everything YOU care about is there, not anything else. Debugging is instant. Native DevTools built in. Look at console errors, network traffic, logs. Need to restart your server but keep the logs? Save them and review later.
Using Claude Code or another agent? Sonar's MCP server lets your agent integrate directly and debug your application with you. Real AI-assisted debugging instead of it guessing.
And since Sonar is still a browser underneath, you can keep your docs, tutorials, references all in there too. One window. Everything you need. It's free and open-source on macOS, Windows, and Linux.
Repo: github.com/thecatthatflies/sonar
Docs: sonardocs.aiyan.tech
Landing Page: sonar.aiyan.tech
PLEASE give me feedback. I'm trying to make Sonar as good as possible and I'd really appreciate GitHub issues with your thoughts!
Have fun with it!