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🎉 Recursive has been featured in awesome-algorithms — Interactive Learning & Visualization section!

Why Recursive?

• No setup, no breakpoints — paste your code, see every step instantly.
• Recursion made visible — each call is a tree node, not a mystery.
• Variables over time — what every variable held, at every step.
• Embed anywhere — blogs, Notion, Obsidian.

Try it out →

2026-04-18.9.37.27.mov

Supported Languages

• Python
• JavaScript / TypeScript

Features

• Paste your code and input fields are automatically generated
• Recursive functions are visualized as a tree structure
• Debug comfortably without setting breakpoints
• Current execution line is highlighted with manual/auto playback
• Works with a single function or plain code

Usage

See the Docs for a full guide with live examples.

Development

pnpm install
pnpm dev
pnpm test
pnpm fix          # oxlint + oxfmt

Contributing

Bug reports and feature requests → GitHub Issues

Sponsor

Your sponsorship helps support more languages like Java and C++.

License

MIT