README.md

test262.fyi

Independent daily test262 (standard test suite) runner for many JS engines (test262.report spiritual successor). WIP.

Warning

The new test262.fyi is built for specific hardware in mind (Linux aarch64, high CPU core count) and it is highly recommended not to run it yourself. Please use issues and PRs :)

Engines

• V8 site source
• SpiderMonkey site source
• JavaScriptCore source
• ChakraCore source
• Hermes site source
• LibJS source
• engine262 site source
• GraalJS source
• QuickJS site source
• XS site source
• Rhino site source
• Boa site source
• Kiesel site source
• Porffor site source
• Nova site source
• NJS site source
• Bali source
• Request more in GitHub issues!

Transpilers

• Babel (old Node and Babel + core-js)
• SWC (old Node and SWC + core-js)
• Sucrase (old Node and Sucrase + core-js)

Engine variants

• V8 with experimental opts
• SM with experimental opts
• JSC with experimental opts
• Stable versions of engines

Features to do

• Preview test262 PRs (changes only)
• Data/graph over time
• Diff individual engines(/runs)
• Lookup JS runtime version -> JS engine version (Node, Deno, Bun, etc)
• Measure times for each test, have "result view" and "time view"