Language · $0

CuNi

A small language with a hard contract: one program, identical behavior in Python, Go, and JavaScript — or it refuses to compile. There is no “close enough” mode.

What you get: a browser playground (CuNi Studio) where you write a program, hit exactness, and see three runtimes print the same thing. If they would not match, Studio tells you no and does not publish.

Who it is for: people who are tired of a script that works in one language and lies in another. Agents that need a law they can actually run on three backends.

What it is not: Combined GC. Buying CuNi does not give you the compressor. Studio is free. Shipping CuNi inside a closed product needs a written exception, $490 / year per product.

Open the free playground Source on GitHub Closed-app exception $490/yr