AI code converter
Translate code between Python, TypeScript, Go, Rust, Java and eight other languages, idiomatically.
Your key stays in your browser.It goes straight to the provider, never to our servers, and we neither log nor keep it. Use a dedicated key with a spending cap, and delete it in the provider's dashboard when you are done.
Input
Result
The result will appear here.Porting a helper from Python to TypeScript, or a script from JavaScript to Go? Paste the source, choose the target, and get code that behaves the same but reads as if written in the target language: its standard library, naming conventions and error handling, not a line-by-line transliteration. The rules follow joshpxyne/gpt-migrate, which migrates whole codebases between languages: preserve behaviour and edge cases, keep names recognisable, never invent packages, and flag anything without a direct equivalent with a NOTE comment.
How it works
- The source language is detected automatically; the target is one of thirteen, from TypeScript and Python to Kotlin, Swift and Dart.
- Integer division, rounding, overflow and error paths are called out in the prompt, because those are where hand-ported code usually diverges.
- Output is the converted file alone, with the imports and type annotations needed to compile, and comments carried over in the target syntax.
Where your data goes
With your own key, what you type and the key go from your browser straight to the provider you choose; neither passes through Hysen Labs. In hosted mode, your text goes through our server to our provider (DeepSeek) and is billed in credits; we keep the token counts and cost of each run for billing, never the text itself or the answer. How the provider handles the text is governed by its own privacy policy.
This tool handles keys and credentials, so nothing about a run is saved, not even to your own history.
About your API key
We do not collect, store or leak your key: it lives only in this page's memory (unless you tick “remember in this tab”) and is gone when you close it. Still, treat any key you have pasted into a web page with care — create a dedicated key with a spending cap for use here, and delete or rotate it in your provider's dashboard when you are done.
What it costs
This tool is free, with no sign-in and no points.
Common questions
- Is the converted code guaranteed to be equivalent?
- No — treat it as a careful first draft. Run the original's tests against the port, or write a few input/output checks for both versions. Pay particular attention to the NOTE comments, which mark the places where the two languages genuinely differ.
- Can it convert a whole project?
- It converts what you paste, one file or function at a time, and cannot see the rest of your project. For a full codebase migration with dependency ordering and testing, gpt-migrate itself (or a similar agent) running locally is the right tool.
- Is my source code stored?
- Not by us. It goes from your browser to the AI provider you pick, with your key, and the result streams back into this page. Your provider's own retention policy applies, so use a separate capped key and check their policy for proprietary code.
The open-source behind it
This tool's prompt is adapted from joshpxyne/gpt-migrate (MIT) and runs on the model you choose. To use the same capability from the command line or inside your own program, start with that project.
joshpxyne/gpt-migrateAlso known as
- ai code converter
- convert python to javascript
- code translator online
- python to go converter
- convert code between languages