Deploy & manage serverless Wasm apps

Run cloud applications and functions quickly and efficiently with Fermyon Cloud

Log into Fermyon Cloud to view and manage your WebAssembly apps, configure domains, check on logs, and see status - free to use!

Cloud makes the most of WebAssembly’s speed, security, and cross-platform support

Developers can deploy applications and instantly have a secure, publicly available deployment. With the dashboard, see what’s running, examine the logs, and monitor your application over time.

Build your app

With Fermyon Spin, you can create, build, and locally test your app in just three commands.

Deploy to the cloud

Ready to see your application live? Deploy it to Fermyon Cloud and you'll get a publicly available deployment. All you need is a GitHub account.

Check app and logs in the portal

Log into the Fermyon Dashboard to view all your apps, check on logs, and see status. It's all free!

Production-Ready

New

Serverless AI

Execute inferencing for LLMs directly from serverless apps.

Custom Domains

Add & manage your own domains to serve traffic to your apps.

SQLite Database

Easily add a SQLite database to your Spin app - no Ops required.

Key/Value Store

Quickly persist data in your apps with Spin's in-built local KV store.

GitHub Actions

Easily connect CI/CD tasks and webhook events to Wasm apps.

Variables & Secrets

Rotate secrets, update endpoints and more through the API.

Next-generation Technology

No Cold Starts

Experience micro-second cold-start times, meaning quicker, seamless execution.

Scales to Zero

Wasm modules only run during a request - starting, executing, and shutting down in milliseconds.

Serverless

Fermyon Cloud’s architecture reduces friction, freeing developers from operational concerns.

Powered by WebAssembly

WebAssembly

Run event-driven Wasm services and web applications

Secure by Default

Ensure clear separation of services with sandboxing.

Open Source

Open Source code written by long-time OSS contributors.

Be the first to learn more

Why Fermyon?

The next wave of cloud compute looks like this

Architected to compile and ship your code as Wasm binaries, Fermyon is a lighter, faster and truly serverless cloud. No need to deal with images, OS layers or instance config.

Finally the promise of true sustainable serverless cloud computing is here with Fermyon’s Cloud offering — a platform that allows me to use almost any language, is incredibly easy to use and blazingly fast.”

— Federico Dionisi

typical app image
200MB+

app.wasm
3.2MB

Hello
supersonic.

Goodbye
cold starts.

0ms 50ms 100ms 150ms 200ms 250ms

Data source. Learn more.

Automatically scales-to-zero

Requests are so fast, services can shut back down seamlessly between requests — minimizing compute consumption.

Secure by
default

Every Wasm application runs in a secure sandbox — eliminating cross contamination.

Compute less, save more

A lighter, faster, and more efficient model means lower cost and more sustainable for your business and our planet.

We've got you covered.

Not just JavaScript — compile almost any language to Wasm.

Rust, Go, Python, JavaScript, .NET, Ruby, C#

Fermyon’s Spin works with mainstream languages like JS/TS, Python, .NET, Rust, and Go. We adhere to the WASI standard, which means dozens of languages that have support for Wasm can be compiled, built and deployed.

Quotes

“We've been able to take a Kubernetes batch process of tens of thousands of orders and cut the compute cost by 60%, without trading off performance”

Kai Walter

Distinguished Architect, ZEISS Group

“It enabled us to build holistic service components, including smart contracts, and integrated a zero trust architecture with confidence that third-party code wouldn't introduce risk in such a critical environment”

PJ Łaszkowicz

Technical Director, Omnijar

“Fermyon not only reduces complexity but also continues to address enterprise cloud computing pain points head-on while also considering the growing demand for increased profitability and productivity.”

Paul Nashawaty

Principal Analyst at The Futurum Group

“It took me 13 lines of code and 2 commands (spin build, spin cloud deploy) to build and deploy a simple 'chatGPT like' app with Fermyon”

Sébastien Blanc

Aiven.io

“I'm getting some hands on time with WebAssembly by playing around with Fermyon and their Spin framework. I think it's extra dope.”

Kelsey Hightower

Former Distinguished Engineer, Google

Deploy and run for free

No tricks. You can run apps on Fermyon Cloud without having to worry about an expiration date. You can opt into future, paid upgrades later on if you need to.

Read the Docs