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
Sep 10, 2024 10:34pm 0 VERSION_BUMP 9d857499
Aug 20, 2024 5:13pm 0 VERSION_BUMP 489a8a72
Aug 20, 2024 3:54pm 0 VERSION_BUMP 0e2ca54c
Aug 12, 2024 7:10pm 0 VERSION_BUMP 87add3af
Jul 22, 2024 3:51pm 0 VERSION_BUMP 6f6107b7
Jun 21, 2024 7:30am 0 VERSION_BUMP 98d30a50
May 20, 2024 9:44pm 0 VERSION_BUMP a4b3bb8d
May 3, 2024 6:58pm 0 VERSION_BUMP f5b5cc98
Feb 8, 2024 3:24am 0 VERSION_BUMP 8395ed9f
Feb 8, 2024 12:56am 0 VERSION_BUMP 356637a9
Oct 26, 2023 6:10pm 0 VERSION_BUMP 126bef27
Sep 21, 2023 12:16am 0 VERSION_BUMP 14478bb5
Sep 20, 2023 7:19pm 0 VERSION_BUMP c0842d8b
Sep 18, 2023 11:21pm 0 VERSION_BUMP 54c4842c
Sep 1, 2023 3:46am 1 VERSION_BUMP d82dd917
Sep 1, 2023 1:33am 1 VERSION_BUMP 68525f86
Aug 22, 2023 12:18am 0 VERSION_BUMP b9248c0e
Jun 21, 2023 7:09pm 0 VERSION_BUMP a6ee932b
Jun 20, 2023 8:43am 0 VERSION_BUMP a5f2b5fc
May 31, 2023 7:12pm 0 VERSION_BUMP e90e9094
May 22, 2023 7:40pm 0 VERSION_BUMP ac1be6b7
Apr 27, 2023 10:08pm 0 VERSION_BUMP f734e6d2
Apr 20, 2023 9:39am 0 VERSION_BUMP cd8801b7
Mar 20, 2023 7:05pm 0 VERSION_BUMP 967d9274
Mar 20, 2023 7:05pm 0 VERSION_BUMP 1c80a3e5
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