Function-as-a-Service at Lightning Speed

Cold start times under 1ms. Memory overhead less than 1KB.

<1ms
Cold Start
<1KB
Memory Overhead
WASI P2
Standard

Key Features

WebAssembly Powered

Run your code as WebAssembly modules using the WASI P2 standard for maximum performance.

🔒

Secure Isolation

Functions run in WebAssembly's sandboxed execution model for strong security guarantees.

🚀

Ultra-Fast Cold Starts

Start your functions in under 1ms without the overhead of traditional containerization.

🏠

Self-Hostable

Run your own Faasta instance anywhere with simple setup instructions.

📊

Minimal Overhead

Less than 1KB memory overhead per function, optimized for efficiency.

🌐

Standards Compliant

Based on WASI Preview 2 and wasi-http, making your functions portable across platforms.

How Faasta Works

1

Write Your Function

Create your function using Rust with the WASI HTTP standard

2

Build For WebAssembly

Compile your code to WebAssembly using cargo faasta build

3

Deploy

Deploy to Faasta with cargo faasta deploy

4

Profit!

Access your function at your-function.faasta.xyz

Ready to Get Started?

Deploy your first function in minutes with our simple getting started guide.

Get Started Now