wasmtime ☆
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Description:
Standalone JIT-style runtime for WebAssembly, using Cranelift
Type: Formula  |  Latest Version: 39.0.1@0  |  Tracked Since: Oct 25, 2025
Links: Homepage  |  @bytecodeall  |  formulae.brew.sh
Category: Developer tools
Tags: webassembly wasm runtime wasi developer-tools
Install: brew install wasmtime
About:
Wasmtime is a high-performance, secure WebAssembly runtime maintained by the Bytecode Alliance. It enables running Wasm code outside of web browsers with near-native speed using its Cranelift compiler. It is designed for server-side applications, edge computing, and embedding into other languages.
Key Features:
  • Fast runtime via Cranelift JIT compilation
  • Secure sandboxing with WebAssembly System Interface (WASI) support
  • Lightweight and easily embeddable
Use Cases:
  • Running serverless functions at the edge
  • Safely executing untrusted code in multi-tenant environments
  • Extending existing applications with plugin systems
Alternatives:
  • node – Node.js is a JavaScript runtime, whereas Wasmtime runs WebAssembly binaries.
  • wasmer – Wasmer is a similar runtime, but Wasmtime is often noted for its tight integration with the Wasmtime ecosystem.
Version History
Detected Version Rev Change Commit
Dec 22, 2025 5:24pm 39.0.1 0 VERSION_BUMP 418b1978
Oct 25, 2025 12:33am 0 VERSION_BUMP 6fe20ecb
Oct 20, 2025 5:32pm 0 VERSION_BUMP a31698bb
Sep 23, 2025 9:10pm 0 VERSION_BUMP cd199f8f
Sep 12, 2025 6:05am 0 VERSION_BUMP c730e9ee
Nov 10, 2024 11:23pm 0 VERSION_BUMP d7dc5ab3
Oct 22, 2024 9:36pm 0 VERSION_BUMP 9ac375a2
Oct 9, 2024 8:28pm 0 VERSION_BUMP 83a645bc
Oct 9, 2024 7:00pm 0 VERSION_BUMP 338e766f
Sep 20, 2024 3:57pm 0 VERSION_BUMP 5a4e15a1
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