Three simple steps
How to use this tool?
This free online converter translates Lua source code into Janet in three simple steps.
- Step 1
Add your Lua code
Type, paste, or upload the Lua code you want to translate.
- Step 2
Convert the code
Click Convert to translate the source code into Janet.
- Step 3
Review the result
Review, copy, or download the resulting Janet code from the output editor.
Language comparison
Key differences between Lua and Janet
| Characteristic | Lua | Janet |
|---|---|---|
| Syntax | Imperative, C-like with simple and minimalistic syntax. | Lisp-like, uses s-expressions and parentheses. |
| Paradigm | Multi-paradigm (procedural, functional, some object-oriented features). | Multi-paradigm (functional, imperative, metaprogramming with macros). |
| Typing | Dynamically typed. | Dynamically typed. |
| Performance | Very fast, lightweight, designed for embedding. | Fast, lightweight, also designed for embedding but generally slightly slower than Lua. |
| Libraries and frameworks | Rich ecosystem, especially for game development (e.g., Love2D, Corona SDK). | Smaller ecosystem, fewer libraries and frameworks available. |
| Community and support | Large, mature community with extensive documentation and resources. | Smaller, newer community with less documentation and fewer resources. |
| Learning curve | Gentle learning curve, easy for beginners. | Steeper learning curve due to Lisp syntax and macro system. |
Common questions
Frequently Asked Questions
How do I convert Lua to Janet?
Paste your Lua code into the input box, confirm the languages are set to Lua and Janet, and click Convert. CodeConvert AI analyzes your Lua code and generates equivalent Janet code in seconds, preserving the original logic and structure.
What are the main differences between Lua and Janet?
Lua and Janet differ in syntax, type system, standard libraries, and common idioms, so copying code line for line usually will not compile. The converter maps each Lua construct to its closest Janet equivalent. See the comparison table below for the key differences between Lua and Janet.
Is the converted Janet code accurate?
The AI produces high-quality Janet code that preserves the behavior of your original Lua code and follows Janet conventions. It handles common patterns, data structures, and idioms for both Lua and Janet. For large or performance-critical code, review and test the Janet output before using it in production.
Can I convert an entire Lua project to Janet?
You can convert Lua files one at a time by pasting each file's code. For a full migration, convert each file and then review how classes, dependencies, and project structure map from Lua to Janet. Signing in for free raises the input limit to 25,000 characters per conversion for larger files.
Can I convert Janet back to Lua?
Yes. CodeConvert AI converts in both directions, so you can convert Janet to Lua just as easily using our Janet to Lua converter. Try the Janet to Lua Converter
Is the Lua to Janet converter free, and do I need to install anything?
Yes, it is free and runs in your browser with nothing to install and no IDE extension required. You can convert Lua to Janet without an account for up to 2 conversions per day. Sign in for free for higher limits.
What are the benefits of signing in?
Signing in unlocks CodeConvert AI's Pro converter with more powerful AI models, a built-in chat assistant, code execution, saved conversion history, and personal notes. Every free account includes 5 credits and supports up to 25,000 characters of input per conversion, with no credit card required.
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