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https://github.com/nurulhudaapon/zzon

A fast, spec compliant, ZON parser and serializer for JavaScript.
https://github.com/nurulhudaapon/zzon

javascript js json ts typescript zig zig-package zon

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A fast, spec compliant, ZON parser and serializer for JavaScript.

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# Zig ZON › zzon


zzon logo


npm
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A fast, spec-compliant ZON parser and serializer for JavaScript.

[ZON](https://github.com/ziglang/zig/pull/20271) is a compact, human-readable, and easy-to-parse data format from the Zig programming language that is similar to JSON in JavaScript.

The API is similar to the native [`JSON` API](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON).

[Try it in the Playground](https://zzon.nuhu.dev)

## Installation

```bash
npm install zzon
```

## Usage

#### Stringify

```ts id="stringify"
import { ZON } from 'zzon';

const zon = ZON.stringify({"a":1,"b":"abc","c":true});
console.log(zon); // .{.a=1,.b="abc",.c=true}
```

#### Parse

```ts id="parse"
import { ZON } from 'zzon';

const json = ZON.parse(`.{.a=1,.b="abc",.c=true}`);
console.log(json); // {"a":1,"b":"abc","c":true}
```

## [Playground](https://zzon.nuhu.dev)

![zzon playground demo](https://raw.githubusercontent.com/nurulhudaapon/zzon/refs/heads/main/asset/playground.gif)

## Benchmarks

Performance comparison between ZON and JSON (source: [test/index.test.ts](test/index.test.ts)):

| Operation | JSON | ZON | Difference |
|-----------|------|-----|------------|
| Parse | 430.80 MB/s | 38.66 MB/s | 11.04x slower |
| Stringify | 454.94 MB/s | 87.43 MB/s | 5.15x slower |

Hardware: Apple M1 Pro
Platform: darwin 25.0.0 (arm64)

*Last updated: 2025-10-24T03:55:48.380Z*
## Example Usage

- [Browser](./example/browser)
- [Bun](./example/bun)

## License

[MIT](https://github.com/nurulhudaapon/zzon/blob/main/LICENSE)