Open Source

We at the Guardian try to be as open and transparent as possible. That means developing in public repositories where anyone can see our work. You can explore our source code on GitHub.

What we work with

Languages

• Scala
• TypeScript
• Kotlin
• Swift
• Python

Frameworks

• React
• Preact
• Play
• Astro (which we use for this very site!)

Tools

• Storybook
• Elasticsearch

There are plenty more where these came from, but they are good starting points. And if you want to see our code in action…

Here’s 10 recently updated repositories:

1. frontend

   (5885 stars - updated Apr 1, 2026)

   The Guardian DotCom.

2. dotcom-rendering

   (263 stars - updated Apr 1, 2026)

   The Guardian web rendering service (aka DCR/DCAR)

3. giant

   (60 stars - updated Apr 1, 2026)

   Platform for journalists to search, analyse, categorise and share unstructured data

4. amigo

   (54 stars - updated Apr 1, 2026)

   AMIgo: An AMI bakery

5. facia-tool

   (28 stars - updated Apr 1, 2026)

   Guardian front pages editor (AKA Fronts tool)

6. cdk

   (22 stars - updated Apr 1, 2026)

   Generic Guardian flavoured AWS CDK components

7. commercial

   (16 stars - updated Apr 1, 2026)

   Guardian advertising business logic

8. tagmanager

   (13 stars - updated Apr 1, 2026)

   Tag Manager: "Like a Beautiful Mind, but with tags" - Unknown

9. fastly-api-client

   (12 stars - updated Apr 1, 2026)

   An asynchronous Scala client for Fastly's API used to deploy and update configs, decache objects and query the stats API

10. janus-app

    (12 stars - updated Apr 1, 2026)

    Google-backed AWS account access