# quickjs

**Repository Path**: mirrors_GerHobbelt/quickjs

## Basic Information

- **Project Name**: quickjs
- **Description**: Public repository of the QuickJS Javascript Engine. Pull requests are not accepted. Use the mailing list to submit patches.
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-04-28
- **Last Updated**: 2025-09-27

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# QuickJS Windows Build
Build [QuickJS](https://bellard.org/quickjs/) on Windows, and [binary releases](https://github.com/mengmo/QuickJS-Windows-Build/releases).

## Build Prerequisites
Install [MSYS2](http://www.msys2.org/)

Since QuickJS only support 32-bit compiling on Windows at present, we should install `i686-toolchain`
```
pacman -S mingw-w64-i686-toolchain
```

## Obtain source code
```
git clone https://github.com/mengmo/QuickJS-Windows-Build.git
```

## Compilation
```
cd QuickJS-Windows-Build
make LDFLAGS="-static -s"
```
## Packaging
```
mkdir ./bin
mv qjs.exe qjsbn.exe qjsc.exe qjsbnc.exe ./bin
mkdir -p ./lib/quickjs
mv libquickjs.a libquickjs.bn.a libquickjs.lto.a libquickjs.bn.lto.a ./lib/quickjs
mkdir -p ./include/quickjs
cp -p quickjs.h quickjs-libc.h ./include/quickjs
zip -9 -r quickjs-$(cat version)-win32.zip ./bin ./doc ./examples ./include ./lib Changelog readme.txt TODO VERSION
```

## Related Projects
**[quickjs](https://github.com/PetterS/quickjs):** Thin Python wrapper of https://bellard.org/quickjs/

**[jsvu](https://github.com/GoogleChromeLabs/jsvu):** install recent versions of various JavaScript engines without having to compile them from source.

---

<h1>QuickJS Javascript Engine</h1>

<h2>News</h2>

<ul>
  <li>2020-04-12:
    <ul>
      <li>New release</li>
    </ul>
  </li>
  <li>2020-03-16:
    <ul>
      <li>New release</li>
    </ul>
  </li>
  <li>2020-01-19:
    <ul>
      <li>New release with
    experimental <a href="https://github.com/littledan/proposal-bigdecimal">BigDecimal</a>
    support and updated operator overloading.</li>
      <li><a href="https://bellard.org/quickjs/pi.html">Small Javascript programs</a> to compute
      one billion digits of pi.</li>
    </ul>
  </li>
</ul>

<h2>Introduction</h2>

QuickJS is a small and embeddable Javascript engine. It supports the
<a href="https://tc39.github.io/ecma262/">ES2020</a> specification
including modules, asynchronous generators, proxies and BigInt.
<p>
It optionally supports mathematical extensions such as big decimal
floating point numbers (BigDecimal), big binary floating point numbers
(BigFloat) and operator overloading.
<p>
Main Features:
<ul>

<li> Small and easily embeddable: just a few C files, no external
dependency, 210 KiB of x86 code for a simple <tt>hello world</tt>
program.</li>

<li> Fast interpreter with very low startup time: runs the 69000 tests
of the <a href="https://github.com/tc39/test262">ECMAScript Test
Suite</a> in about 95 seconds on a single core of a desktop PC. The
complete life cycle of a runtime instance completes in less than 300
microseconds.</li>

<li> Almost
  complete <a href="https://tc39.github.io/ecma262/">ES2020</a>
  support including modules, asynchronous generators and full Annex B
  support (legacy web compatibility).</li>

<li>Passes nearly 100% of the ECMAScript Test Suite tests when selecting the ES2020 features.</li>

<li> Can compile Javascript sources to executables with no external dependency.</li>

<li> Garbage collection using reference counting (to reduce memory usage
  and have deterministic behavior) with cycle removal.</li>

<li> Mathematical extensions: BigDecimal, BigFloat, operator overloading, bigint mode, math mode.</li>

<li> Command line interpreter with contextual colorization implemented in Javascript.</li>

<li> Small built-in standard library with C library wrappers.</li>

</ul>

<h2><a href="https://bellard.org/quickjs/bench.html">Benchmark</a></h2>

<h2>Online Demo</h2>

An online demonstration of the QuickJS engine with its mathematical
extensions is available
at <a href="http://numcalc.com">numcalc.com</a>. It was compiled from
C to WASM/asm.js with Emscripten.
<p>
<tt>qjs</tt> and <tt>qjscalc</tt> can be run in <a href="https://bellard.org/jslinux/vm.html?url=buildroot-x86.cfg">JSLinux</a>.

<h2>Documentation</h2>

QuickJS documentation: <a href="https://bellard.org/quickjs/quickjs.html">HTML version</a>,
<a href="https://bellard.org/quickjs/quickjs.pdf">PDF version</a>.
<p>
Specification of the JS Bignum Extensions: <a href="https://bellard.org/quickjs/jsbignum.html">HTML
version</a>, <a href="https://bellard.org/quickjs/jsbignum.pdf">PDF version</a>.

<h2>Download</h2>

<ul>
  <li>
    QuickJS source code: <a href="https://bellard.org/quickjs/quickjs-2020-04-12.tar.xz">quickjs-2020-04-12.tar.xz</a></li>
  <li>
    QuickJS extras (contain the unicode files needed to rebuild the unicode tables and the bench-v8 benchmark): <a href="https://bellard.org/quickjs/quickjs-extras-2020-04-12.tar.xz">quickjs-extras-2020-04-12.tar.xz</a>
  </li>
  <li>
    Unofficial <a href="https://github.com/horhof/quickjs">git mirror</a>.
  </li>
  <li>
    Binary releases for Linux are available in <a href="https://github.com/GoogleChromeLabs/jsvu">jsvu</a> and <a href="https://bellard.org/quickjs/binary_releases">here</a>.
  </li>
  <li>
    Typescript compiler compiled with QuickJS: <a href="https://bellard.org/quickjs/quickjs-typescript-linux-x86.tar.xz">quickjs-typescript-linux-x86.tar.xz</a>
  </li>
  <li>
    Babel compiler compiled with QuickJS: <a href="https://bellard.org/quickjs/quickjs-babel-linux-x86.tar.xz">quickjs-babel-linux-x86.tar.xz</a>
  </li>
</ul>

<h2>Sub-projects</h2>

QuickJS embeds the following C libraries which can be used in other
projects:
<ul>
  <li><b>libregexp</b>: small and fast regexp library fully compliant with the Javascript ES 2019 specification.</li>
  <li><b>libunicode</b>: small unicode library supporting case
conversion, unicode normalization, unicode script queries, unicode
general category queries and all unicode binary properties.</li>
  <li><b>libbf</b>: small library implementing arbitrary precision
    IEEE 754 floating point operations and transcendental functions with
    exact rounding. It is maintained as a <a href="https://bellard.org/libbf">separate project</a>.
  </li>
</ul>

<h2>Links</h2>

<ul>
  <li><a href="https://www.freelists.org/list/quickjs-devel">QuickJS Development</a> mailing list</li>
</ul>

<h2>Licensing</h2>

QuickJS is released under
the <a href="https://opensource.org/licenses/MIT">MIT license</a>.
<p>
Unless otherwise specified, the QuickJS sources are copyright Fabrice
Bellard and Charlie Gordon.

<hr>
Fabrice Bellard - <a href="https://bellard.org">https://bellard.org/</a>