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Hi 👋, we're Fastly.

Fastly empowers everyone to build the good internet together.

With features ranging from DDoS and bot protection to caching and edge computing, we help make apps, websites, and connected devices faster, safer, and more engaging. We powerGitHub Pages, theLinux Foundation, downloads ofcURL, registries likeRubyGems andPyPi, public CDNs likeJSDelivr, and much more. We're BFFs with your refrigerator and your favorite news site.

At Fastly, open source is a part of our heritage, essential to our operations, and central to our future. Our core technologies are built on open-source code, and we use and contribute to the software and open internet standards that make the modern internet.

➡️Learn more about our open source projects
➡️Read our code of conduct and business policies

Fast Forward

To nurture and support those who share our vision of an open internet that is fast and secure for all, we extend free and deeply discounted services to eligible open source projects and the nonprofits that support them:Kubernetes,Mastodon,Rust, and over 100 more.

➡️Read about Fast Forward and apply for our support

Popular repositoriesLoading

pushpinpushpinPublic
A proxy server for adding push to your API, used at the core of Fastly's Fanout service
Rust 3.8k 156
ftwftwPublic archive
Framework for Testing WAFs (FTW!)
Python 266 59
js-compute-runtimejs-compute-runtimePublic
JavaScript SDK and runtime for building Fastly Compute applications
JavaScript 204 36
go-fastlygo-fastlyPublic
A Fastly API client for Go
Go 159 131
fastly-magento2fastly-magento2Public
Module for integrating Fastly CDN with Magento 2 installations
PHP 153 123
ViceroyViceroyPublic
Viceroy provides local testing for developers working with Compute.
Rust 151 40

Showing 10 of 262 repositories

terraform-provider-fastly Public
Terraform Fastly provider
fastly/terraform-provider-fastly’s past year of commit activity
Go 122MPL-2.0 143 31 (2 issues need help) 2 UpdatedJul 3, 2025
vscode-fastly-vcl Public
A Visual Studio Code extension which adds syntax highlighting for Fastly Varnish Configuration Language (VCL) files.
fastly/vscode-fastly-vcl’s past year of commit activity
TypeScript 11MIT0 7 1 UpdatedJul 3, 2025
fanout-chat-demo Public
Demonstrates the use of Fastly Fanout to maintain a chat system and send update messages across devices in real time.
fastly/fanout-chat-demo’s past year of commit activity
Python 1MIT 1 0 1 UpdatedJul 3, 2025
fanout-leaderboard-demo Public
Leaderboard Demo for Fastly Fanout
fastly/fanout-leaderboard-demo’s past year of commit activity
JavaScript 2MIT0 0 2 UpdatedJul 3, 2025
fanout-compute-js-demo Public
Fanout Fastly Compute JavaScript demo
fastly/fanout-compute-js-demo’s past year of commit activity
TypeScript 17MIT 2 0 1 UpdatedJul 3, 2025
go-fastly Public
A Fastly API client for Go
fastly/go-fastly’s past year of commit activity
Go 159Apache-2.0 131 0 3 UpdatedJul 2, 2025
heavykeeper-rs Public
(fork) Heavykeeper algorithm for Top-K elephant flows
fastly/heavykeeper-rs’s past year of commit activity
Rust0MIT0 0 0 UpdatedJul 3, 2025
Viceroy Public
Viceroy provides local testing for developers working with Compute.
fastly/Viceroy’s past year of commit activity
Rust 151Apache-2.0 40 59 (3 issues need help) 8 UpdatedJul 2, 2025
cli Public
Build, deploy and configure Fastly services from your terminal
fastly/cli’s past year of commit activity
Go 146Apache-2.0 69 42 (1 issue needs help) 3 UpdatedJul 2, 2025
fastly-exporter Public
A Prometheus exporter for the Fastly Real-time Analytics API
fastly/fastly-exporter’s past year of commit activity
Go 102Apache-2.0 42 8 2 UpdatedJun 30, 2025