https://github.com/ivankra/javascript-zoo
JavaScript engines zoo
https://github.com/ivankra/javascript-zoo
ecmascript javascript javascript-engine
Last synced: about 10 hours ago
JSON representation
JavaScript engines zoo
- Host: GitHub
- URL: https://github.com/ivankra/javascript-zoo
- Owner: ivankra
- License: mit
- Created: 2025-08-26T16:41:30.000Z (7 months ago)
- Default Branch: master
- Last Pushed: 2026-02-25T04:44:49.000Z (19 days ago)
- Last Synced: 2026-02-25T10:08:35.693Z (19 days ago)
- Topics: ecmascript, javascript, javascript-engine
- Language: JavaScript
- Homepage: https://zoo.js.org
- Size: 11 MB
- Stars: 214
- Watchers: 1
- Forks: 8
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome - ivankra/javascript-zoo - JavaScript engines zoo (JavaScript)
README
# JavaScript engines zoo
Contents:
* [engines](engines/README.md): list of JavaScript engines
* [parsers](parsers/README.md): list of JavaScript parsers
* [app](app/): SPA app for [zoo.js.org](https://zoo.js.org/)
* [bench](bench/): benchmarking different engines on V8's test suite
* [build](build/README.md): docker/make-based build system for open-source engines (base build scripts and containers)
* [conformance](conformance/README.md): ECMAScript conformance testing
See [zoo.js.org](https://zoo.js.org/) for the main tabular view with benchmark and conformance scores,
or perhaps [engines.json](https://zoo.js.org/engines.json) for a machine-readable json with structured data.
Most engines come with a build script. Build and play around with any engine locally (needs `docker`, `podman` or Apple's
[container](https://github.com/apple/container/releases)):
* `cd engines// && make`
* `cd engines// && make sh` - explore the build container (build artifacts will be in `/dist`)
* `DOCKER_ARCH=riscv64 make sh` - cross build with qemu (`sudo apt install qemu-user-static`)
* `REPO=https://... REV= make` - build from a specific commit and/or repo
You can download pre-built binaries from [GitHub releases](https://github.com/ivankra/javascript-zoo/releases) or play with them using this [Docker Hub](https://hub.docker.com/r/ivankra/javascript-zoo) image:
* `docker run -it ivankra/javascript-zoo`
* `podman run -it docker.io/ivankra/javascript-zoo`
* `container run -it docker.io/ivankra/javascript-zoo`
## Links
* Allen Wirfs-Brock and Brendan Eich (2020). [JavaScript: the first 20 years](https://dl.acm.org/doi/pdf/10.1145/3386327).
* Other JavaScript engines compendiums: [wikipedia](https://en.wikipedia.org/wiki/List_of_JavaScript_engines), [bkil](https://github.com/bkil/gemiweb0/tree/master/doc/javascript-interpreter-runtimes.md), [linusg](https://github.com/linusg/ecmascript-wiki), [ahaoboy](https://github.com/ahaoboy/js-engine-benchmark), [eatonphil.com](https://notes.eatonphil.com/javascript-implementations.html), [buttondown.com](https://buttondown.com/whatever_jamie/archive/the-many-many-many-javascript-runtimes-of-the-last-decade/), [guest271314](https://gist.github.com/guest271314/bd292fc33e1b30dede0643a283fadc6a), [bga](https://bga.github.io/list-of-ecmascript-engines/), [JsUnit](https://joehni.github.io/JsUnit/products.html) (early 2000s JavaScript landscape), [thaliaarchi](https://github.com/thaliaarchi/regexp-museum/tree/master/langs/javascript.md) (regex engines)
* [esvu](https://github.com/devsnek/esvu) / [jsvu](https://github.com/GoogleChromeLabs/jsvu) - installers for official releases of various engines
* [test262.fyi](https://test262.fyi/) - daily test262 runs for recent engines