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Wasmtime
Wasmtime is a high-performance and secure runtime for WebAssembly (Wasm) and WebAssembly System Interface (WASI).
Our verdict
Who it's for
Fast, secure, and configurable WebAssembly runtime for diverse environments.
Who should look elsewhere
Requires some familiarity with WebAssembly concepts for optimal use
Pros
- +High performance due to optimized code generation
- +Enhanced security through rigorous development practices and Rust's safety
- +Flexible configuration for various environments
- +Broad language support for integration
- +Adherence to WebAssembly standards and active participation in its evolution
Cons
- −Requires some familiarity with WebAssembly concepts for optimal use
- −Installation involves command-line steps for some operating systems
Key features
- ✓Optimizing Cranelift code generator for fast machine code generation
- ✓Efficient instantiation and low-overhead calls
- ✓Scalability for concurrent instances
- ✓Strong focus on correctness and security with Rust's safety guarantees
- ✓RFC process and 24/7 fuzzing for feature development
- ✓Configurable CPU and memory consumption
- ✓Support for WASI (WebAssembly System Interface) APIs
- ✓Compliance with official WebAssembly test suite and C API
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Wasmtime | — | month | Fast runtime for WebAssembly; Secure (Rust's runtime safety, RFC process, 24/7 fuzzing, security policy); Configurable (CPU and memory consumption) |