title = "Introducing Spin" template = "spin_main" date = "2023-11-04T00:00:01Z" enable_shortcodes = true [extra] url = "https://github.com/fermyon/developer/blob/main/content/spin/v2/index.md"
{{suh_cards}} {{card_element "sample" "Checklist Sample App" "A checklist app that persists data in a key value store" "https://developer.fermyon.com/hub/preview/sample_checklist" "Typescript,Http,Kv" true }} {{card_element "template" "Zola SSG Template" "A template for using Zola framework to create a static webpage" "https://developer.fermyon.com/hub/preview/template_zola_ssg" "rust" true }} {{card_element "sample" "AI-assisted News Summarizer" "Read an RSS newsfeed and have AI summarize it for you" "https://developer.fermyon.com/hub/preview/sample_newsreader_ai" "Typescript,Javascript,Ai" true }} {{blockEnd}}
Spin is a framework for building and running event-driven microservice applications with WebAssembly (Wasm) components.
Spin uses Wasm because it is sandboxed, portable, and fast. Millisecond cold start times mean no need to keep applications "warm".
Many languages have Wasm implementations, so developers don't have to learn new languages or libraries.
Spin is open source and built on standards, meaning you can take your Spin applications anywhere. There are Spin implementations for local development, for self-hosted servers, for Kubernetes, and for cloud-hosted services.
Want to see the kinds of things people are building with Spin? Check out what's Built With Spin!
Or dive into the documentation and get started: