What are the main differences?
Wasmer added your language and skyrocketed speed.

Developers and enterprises prefer Wasmer for its incredible performance and flexibility.

Startup speed
Wasmer1000x
Wasmtime

Stunning speed

Wasmer is designed from the ground up to match the speed of native executables thanks to our LLVM integration. Experience startup performance unlike any other.

Execution speed
Wasmer2x
Wasmtime

Wasmer is really flexible and easy to integrate, with incredible documentation

Quentin Adam, Clever Cloud CEO

Lightweight headless mode

Wasmer ships with a headless mode that allows running precompiled Wasm files in the most lightweight way.

0.8mb
Wasmer
13.8mb
Wasmtime
Bundle size

Flexible compiler support

No matter if you are focusing on development speed or runtime performance – Wasmer supports the right runtime for the right application.

Wasmer
Cranelift
Singlepass
LLVM
Wasmtime
Cranelift
Compilers

Favorite language integration

Wasmer aims to enable all devs to use Wasm. It supports a wide range of languages that enables you to use Wasm, no matter what language you are coding in.

Wasmer
Wasmtime
Supported languages

I gotta say, I really like this very much

Solomon Hykes, former CTO of Docker

Ready for a universal runtime? Stay in touch and get involved.

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