| Continuous Integration | Test Coverage | Documentation | Crates.io |
|---|---|---|---|
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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 for
no_stdembedded environments. - Compiler/JIT bomb resisting translation.
- Loosely mirrors the Wasmtime API to act as drop-in replacement.
- 100% WebAssembly spec testsuite compliance.
- Built-in support for fuel metering.
- Supports the official Wasm C-API.
Wasmi is suitable for safety critical use cases and has been audited twice.
| Wasmi Version(s) | Auditor | Contractor | Report |
|---|---|---|---|
0.36.0-0.38.0 |
Runtime Verification Inc. | Stellar Development Foundation | |
0.31.0 |
SRLabs | Parity Technologies |
- 📖 Usage Guide: learn how to use the Wasmi API properly.
- 🛠️ Development Guide: learn how to develop for Wasmi.
- ✨ Crate Features: learn about
wasmicrate features.
| WebAssembly Proposal | WebAssembly Proposal | |||||
|---|---|---|---|---|---|---|
| ✅ | mutable-global |
≥ 0.14.0 |
✅ | custom-page-sizes |
≥ 0.41.0 |
|
| ✅ | saturating-float-to-int |
≥ 0.14.0 |
✅ | memory64 |
≥ 0.41.0 |
|
| ✅ | sign-extension |
≥ 0.14.0 |
✅ | wide-arithmetic |
≥ 0.42.0 |
|
| ✅ | multi-value |
≥ 0.14.0 |
✅ | simd |
≥ 0.43.0 |
|
| ✅ | bulk-memory |
≥ 0.24.0 |
✅ | relaxed-simd |
≥ 0.44.0 |
|
| ✅ | reference-types |
≥ 0.24.0 |
📅 | function-references |
Tracking Issue | |
| ✅ | tail-calls |
≥ 0.28.0 |
📅 | gc |
Tracking Issue | |
| ✅ | extended-const |
≥ 0.29.0 |
📅 | threads |
Tracking Issue | |
| ✅ | multi-memory |
≥ 0.37.0 |
📅 | exception-handling |
Tracking Issue |
| Embeddings | ||
|---|---|---|
| ✅ | WASI | WASI (wasip1) support via the wasmi_wasi crate. |
| ✅ | C-API | Official Wasm C-API support via the wasmi_c_api_impl crate. |
If you want your project on this list please 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 or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://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.
