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Wasmi is an efficient and lightweight WebAssembly interpreter with a focus on constrained and embedded systems.

• Simple, correct and deterministic execution of WebAssembly.
• Efficient and cross-platform WebAssembly runtime forno_std embedded environments.
• Compiler/JIT bomb resisting translation.
• Loosely mirrors theWasmtime API to act as drop-in replacement.
• 100% WebAssembly spec testsuite compliance.
• Built-in support for fuel metering.
• Supports the officialWasm C-API.

Wasmi is suitable for safety critical use cases and has been audited twice.

• 📖Usage Guide: learn how to use theWasmi API properly.
• 🛠️Development Guide: learn how to develop for Wasmi.
• ✨Crate Features: learn aboutwasmi crate features.

If you want your project on this listplease inform me about you project and how Wasmi is used.

Special thanks to the past and present sponsors of the Wasmi project.

Sponsoring since Oct. 2024

Sponsored until Oct. 2024

Licensed under either of

• Apache License, Version 2.0, (LICENSE-APACHE orhttps://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT orhttps://opensource.org/licenses/MIT)

at your option.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.