Web platform features explorer

Memory64 (WebAssembly)

Limited availability
Tags: webassembly Groups: WebAssembly

Instructions accept 64-bit memory indexes.

Learn more

No MDN documentation found. You can search for the feature on MDN. If you believe that MDN has no documentation about this feature, you can open an issue on MDN's GitHub repository.

Specifications

Browser support

  • Chrome 133 Released on 2025-02-04
  • Chrome Android 133 Released on 2025-02-04
  • Edge 133 Released on 2025-02-06
  • Firefox 134 Released on 2025-01-07
  • Firefox for Android 134 Released on 2025-01-07
  • Safari ❌
  • Safari on iOS ❌

Baseline availability blocked since February 2025 by Safari (5 months)

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