Web platform features explorer - String builtins (WebAssembly)

Web platform features explorer

Tags: webassembly Groups: WebAssembly

The WebAssembly builtin string functions mirror a subset of the JavaScript String API and adapt it to be efficiently callable without JavaScript glue code.

Learn more

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Specifications

https://github.com/WebAssembly/js-string-builtins/blob/main/proposals/js-string-builtins/Overview.md

Browser support

Chrome 130 Released on 2024-10-15
Chrome Android 130 Released on 2024-10-15
Edge 130 Released on 2024-10-17
Firefox 134 Released on 2025-01-07
Firefox for Android 134 Released on 2025-01-07
Safari ❌
Safari on iOS ❌

Baseline availability blocked since January 2025 by Safari (6 months)

Interop

Included in Interop 2025

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