JavaScript engines zoo

Contents:

• engines: list of JavaScript engines
• parsers: list of JavaScript parsers
• app: SPA app for zoo.js.org
• bench: benchmarking different engines on V8's test suite
• build: docker/make-based build system for open-source engines (base build scripts and containers)
• conformance: ECMAScript conformance testing

See zoo.js.org for the main tabular view with benchmark and conformance scores, or perhaps engines.json for a machine-readable json with structured data.

Most engines here come with a build script. Build any engine locally:

• cd engines/<name>/ && make

Play around with pre-built binaries from Docker Hub:

• 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.
• Other JavaScript engines compendiums: wikipedia, bkil, linusg, ahaoboy, eatonphil.com, buttondown.com, guest271314, bga, JsUnit (early 2000s JavaScript landscape), thaliaarchi (regex engines)
• esvu / jsvu - installers for official releases of various engines
• test262.fyi - daily test262 runs for recent engines