Ultra-fast lightweight runtime.
Deploy WebAssembly workers that start in microseconds. JavaScript, Rust, Go, and Python compiled to WASM — running at the edge with near-native speed.
< 1 ms
Cold start
JS / Rust / Go
Languages
Hardware
Sandbox
300+
Locations
WebAssembly at the edge.
Sub-millisecond cold starts, multi-language, and hardware-isolated sandboxes.
Microsecond cold starts
WASM workers spin up in under 1ms. No JVM, no container — just compiled bytecode executing instantly.
Multi-language support
Write in JavaScript, TypeScript, Rust, Go, Python, or C/C++. Compile to WASM and deploy.
Sandboxed isolation
Each worker runs in a hardware-isolated sandbox. Memory-safe by design with no shared state.
300+ edge locations
Deploy globally. Workers execute at the closest edge PoP to the user.
KV storage
Built-in key-value storage at the edge. Sub-millisecond reads for session data and configs.
WASI support
Full WASI (WebAssembly System Interface) support for file system, networking, and clock APIs.
Getting started
Launch your first instance in three steps. CLI, console, or API — your choice.
// worker.ts
export default {
async fetch(request: Request) {
return new Response("Hello from WASM!", {
headers: { "content-type": "text/plain" }
});
}
};Edge-native compute.
Request processing and authentication at 300+ edge locations.
Edge request processing
Transform requests, add headers, and route traffic at the edge before hitting origin.
View tutorialSuggested configuration
WASM · 300 PoPs · < 1ms cold
Estimate your costs
Create detailed configurations to see exactly how much your architecture will cost. Pay for what you use, down to the second.
Configuration 1
WASM Runtime
Usage Volume
Connectivity
Cost details
Ultra-fast, secure edge computing using WebAssembly.
Works seamlessly with
Frequently asked questions
WASM at the edge.
Deploy workers to 300+ locations with sub-millisecond cold starts.