WebAssembly SIMD will expose hardware SIMD instructions to WebAssembly applications in a platform-independent way. The SIMD proposal introduces a new 128-bit value type that can be used to represent different types of packed data, and several vector operations that operate on packed data. SIMD can boost performance by exploiting data level parallelism and is also useful when compiling native code to WebAssembly



Public discussion

Status in Chromium


Origin trial (tracking bug) in:

  • Chrome for desktop release 84
  • Chrome for Android release 84

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.

  • In development
  • In development
  • No signal
  • Positive


Search tags

WebAssembly, SIMD, SIMD.js,

Last updated on 2020-12-21