Wasmtime did the basics.

Wasmer added your language

and skyrocketed speed.

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

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.

Startup speed

Wasmer

1000x

Wasmtime

Execution speed

Wasmer

2x

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.

Bundle size
13.8mb
Wasmtime
0.8mb
Wasmer
Wasmer
Cranelift
Singlepass
LLVM
Wasmtime
Cranelift
×
×

Flexible compiler support

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

Favorite language integration

Wasmer works 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.

GO
⚙️
🐍
🦀
JS
⚛️
C
C++
php
R
🔷
💧
"I gotta say, I really like this very much"
Solomon Hykes, former CTO of Docker
Ready for a universal runtime?
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