Skip to content

Hi 👋, we're Fastly.

A montage of Fastly contributors made using Imagemagick

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 power GitHub Pages, the Linux Foundation, downloads of cURL, registries like RubyGems and PyPi, public CDNs like JSDelivr, 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 repositories Loading

  1. pushpin pushpin Public

    A proxy server for adding push to your API, used at the core of Fastly's Fanout service

    Rust 3.8k 154

  2. ftw ftw Public archive

    Framework for Testing WAFs (FTW!)

    Python 266 58

  3. js-compute-runtime js-compute-runtime Public

    JavaScript SDK and runtime for building Fastly Compute applications

    JavaScript 217 41

  4. go-fastly go-fastly Public

    A Fastly API client for Go

    Go 164 129

  5. Viceroy Viceroy Public

    Viceroy provides local testing for developers working with Compute.

    Rust 161 42

  6. fastly-magento2 fastly-magento2 Public

    Module for integrating Fastly CDN with Magento 2 installations

    PHP 157 125

Repositories

Showing 10 of 274 repositories
  • cli Public

    Build, deploy and configure Fastly services from your terminal

    fastly/cli’s past year of commit activity
    Go 154 Apache-2.0 71 47 (1 issue needs help) 9 Updated Feb 2, 2026
  • compute-js-static-publish Public

    Static Publisher for Fastly Compute JavaScript

    fastly/compute-js-static-publish’s past year of commit activity
    TypeScript 47 MIT 11 3 1 Updated Feb 2, 2026
  • fastly-js Public

    A Fastly API client for JavaScript

    fastly/fastly-js’s past year of commit activity
    JavaScript 12 MIT 2 5 5 Updated Feb 2, 2026
  • js-compute-runtime Public

    JavaScript SDK and runtime for building Fastly Compute applications

    fastly/js-compute-runtime’s past year of commit activity
    JavaScript 217 Apache-2.0 41 76 10 Updated Feb 2, 2026
  • Viceroy Public

    Viceroy provides local testing for developers working with Compute.

    fastly/Viceroy’s past year of commit activity
    Rust 161 Apache-2.0 42 63 (3 issues need help) 6 Updated Feb 2, 2026
  • fastly-magento2 Public

    Module for integrating Fastly CDN with Magento 2 installations

    fastly/fastly-magento2’s past year of commit activity
    PHP 157 BSD-3-Clause 125 24 12 Updated Feb 2, 2026
  • esi Public Forked from kailan/esi

    A streaming Edge Side Includes parser and executor designed for Fastly Compute.

    fastly/esi’s past year of commit activity
    Rust 11 MIT 6 10 3 Updated Jan 31, 2026
  • 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 16 MIT 0 1 0 Updated Jan 30, 2026
  • compute-sdk-go Public

    Go SDK for building Fastly Compute applications

    fastly/compute-sdk-go’s past year of commit activity
    Go 86 Apache-2.0 10 10 2 Updated Jan 28, 2026
  • terraform-provider-fastly Public

    Terraform Fastly provider

    fastly/terraform-provider-fastly’s past year of commit activity
    Go 126 MPL-2.0 146 26 (2 issues need help) 1 Updated Jan 26, 2026