Playground

Paste anything. Get speed and safety.

Write U directly, or paste JavaScript, TypeScript, Python or PHP and see it translated. The transpiler handles 98%+ of real-world code. Then u2c --suggest-caps runs 20 security analyses — no server, no LLM.

98.7%
PHP files transpiled cleanly
(943 real Qbix Platform files)
87.5%
Python files transpiled cleanly
(Flask 3.1, 24 real files)
20
mechanical security analyses
run on every function

Your existing code, compiled to a native binary. Not interpreted — compiled. The transpiler handles PHP, JavaScript, TypeScript, and Python. The compiler runs 20 security analyses, generates docs in 20 languages, and produces a binary that starts in microseconds. Upload a .zip and try it.

Transpiling is instant — tap a language tab above. Hit Compile for C output.
your U
U
— pick a language and paste code, or write U on the left
emitted C
— press Compile
UDoc
— write U code and press Compile
Output
— press Run to execute