Extism, a lightweight framework for building with WebAssembly, hits 1.0

published on 2024/01/10

Extism is a lightweight framework for building with WebAssembly (Wasm). It supports running Wasm code on servers, the edge, CLIs, IoT, browsers and everything in between. Extism is designed to be "universal" in that it supports a common interface, no matter where it runs.

Additionally, Extism adds some extra utilities on top of standard Wasm runtimes. For example, we support persistent memory/module-scope variables, secure & host-controlled HTTP without WASI, runtime limiters & timers, simpler host function linking, and more. Extism users build:

  • plug-in systems
  • FaaS platforms
  • code generators
  • web applications


Congratulations for a great release!