Fermyon Spin — WebAssembly Serverless Runtime for Cloud & Edge
Fermyon Spin is an open-source serverless runtime built on WebAssembly (Wasm) that enables developers to build, deploy, and scale microservices with near-instant cold starts (sub-millisecond), smaller binaries (MBs vs. GBs for containers), and strong sandboxing. Built on the Wasmtime and WasmSpin engines, Spin supports Rust, JavaScript/TypeScript, Go, Python, and .NET with a single CLI. Fermyon Cloud provides a fully managed Tier 0 serverless platform running Spin applications at the edge, and Fermyon Platform enables on-premises Wasm deployment for regulated industries. Used by enterprises for serverless APIs, plugin systems, event-driven functions, and edge compute where cold start and security isolation matter.
Features
✦Sub-millisecond cold starts: Wasm microVMs boot in under 100µs vs. seconds for containers
✦Tiny binaries: spin up with MBs instead of GB container images — faster deploys, less bandwidth
✦Sandboxed execution: each function runs in a capability-based security sandbox with no shared state
✦Multi-language: Rust, JavaScript, TypeScript, Go, Python, and .NET with unified Spin CLI
✦Fermyon Cloud: fully managed Tier 0 serverless with global edge deployment and auto-scaling
✦Component Model: WASI and the WebAssembly Component Model for composable, language-agnostic modules
Let's discuss how Fermyon Spin — WebAssembly Serverless Runtime for Cloud & Edge can transform your business. 364 E Main St STE 1008, Middletown, DE 19709 · +1 302 464 0950