04 / Playground · REPL

Write it.
Run it.
See the path.

A small interactive surface for trying the Lithon shape. This frontend REPL simulates the verifier output so the experience is useful before the native engine is connected.

Interactive demoClient-side onlyNo setup required
scratch.lithonPython-flavored

Python-flavored editor. Tab indents, Shift+Tab outdents, and typing shows keyword, builtin, and type suggestions.

lithon runtime idle
Press “Run program” to send your code through the verifier.

Note: This browser playground is an interactive product preview. Native compilation happens in the Lithon engine. Press Ctrl or ⌘ + Enter to run.