wasi-libc ☆
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Description:
Libc implementation for WebAssembly
Type: Formula  |  Latest Version: 59cbe140561db52fc505555e859de884e0ee7f00@0  |  Tracked Since: Dec 28, 2025
Links: Homepage  |  formulae.brew.sh
Category: Developer tools
Tags: webassembly wasi libc c-library wasm
Install: brew install wasi-libc
About:
Wasi-libc is a C standard library implementation specifically designed for WebAssembly System Interface (WASI) targets. It provides essential libc APIs, enabling standard C/C++ applications to compile and run seamlessly within sandboxed WebAssembly environments. This library bridges the gap between standard system calls and the restricted WASI capability-based model.
Key Features:
  • Minimal footprint optimized for WebAssembly
  • Compliance with WASI snapshot preview1
  • Support for standard C99 and C++ APIs
  • Integration with LLVM/Clang toolchains
Use Cases:
  • Compiling standard C/C++ applications to WASI
  • Porting existing libraries to WebAssembly
  • Running server-side WebAssembly workloads
Alternatives:
  • wasm-musl – Musl-based libc port; wasi-libc is the official standard maintained by the WASI project.
Version History
Detected Version Rev Change Commit
Sep 8, 2026 8:56pm 59cbe140561db52fc505555e859de884e0ee7f00 0 VERSION_BUMP eb233cd3
Sep 12, 2025 5:59am 0 VERSION_BUMP c7b35193
Oct 29, 2024 7:43pm 24 0 VERSION_BUMP 060716ce
Oct 22, 2024 9:47pm 24 0 NEW b8adc5ba
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