GitHub - orielhaim/tszig: An experimental compiler that translates TypeScript into Zig · GitHub
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TSZIG
TSZIG is an experimental compiler project that aims to transform TypeScript code into readable Zig code. The goal is to explore what a TypeScript-to-Zig workflow could look like while keeping the generated output simple and understandable.
Why?
TypeScript offers a productive developer experience, while Zig focuses on simplicity, performance, and control. (Or in simpler terms - zig is faster 🙂)
Usage
You can use the CLI to check your code compatibility or build the final Zig files.
Installation
git clone https://github.com/orielhaim/tszig.git<br>cd tszig
bun install # or npm install (for the losers)
Commands
Build: Compile a directory of TypeScript files to Zig.
bun dev build ./test -o ./output
Check: Validate TypeScript files for Zig compatibility without generating output.
bun dev check ./test
Example
Input (fibonacci.ts):
function fibonacci(n: number): number {<br>if (n 1) return n;
let a = 0;<br>let b = 1;
for (let i = 2; i n; i++) {<br>const temp = a + b;<br>a = b;<br>b = temp;
return b;
Output (fibonacci.zig):
pub fn fibonacci(n: f64) f64 {<br>if (n 1.0) return n;
var a: f64 = 0.0;<br>var b: f64 = 1.0;
var i: f64 = 2.0;<br>while (i n) : (i += 1.0) {<br>const temp = a + b;<br>a = b;<br>b = temp;
return b;
Try it yourself
The repo includes a Test Suite directory that covers most of the supported TypeScript features.
bun dev build ./test -o ./output
Status
TSZIG is currently under active development and is considered experimental .
✅ Built and tested with TypeScript 6
✅ Compatible with Zig 0.16.0
⚠️ Not all TypeScript features are supported (e.g., complex Generics, JS built-ins)
⚠️ APIs and output format may change frequently
Goals
Primitive types, functions, and control flow
Classes with inheritance, abstract classes, and virtual dispatch
Generics (functions and classes)
Cross-module imports and multi-file compilation
Comprehensive diagnostics for unsupported TypeScript patterns
Standard library coverage (Math, string methods, Array utilities)
Discriminated unions and advanced type narrowing
Contributing
Issues, ideas, feedback, and pull requests are welcome. (Obviously)
License
Apache License 2.0
About
An experimental compiler that translates TypeScript into Zig
Resources
Readme
License
Apache-2.0 license
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