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

   (5883 stars - updated Apr 8, 2026)

   The Guardian DotCom.

2. riff-raff

   (272 stars - updated Apr 8, 2026)

   The Guardian's deployment platform

3. dotcom-rendering

   (263 stars - updated Apr 8, 2026)

   The Guardian web rendering service (aka DCR/DCAR)

4. giant

   (60 stars - updated Apr 8, 2026)

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

5. amigo

   (54 stars - updated Apr 8, 2026)

   AMIgo: An AMI bakery

6. prism

   (50 stars - updated Apr 8, 2026)

   Tool for collecting live data about infrastructure so it can be easily queried by users and automated tooling

7. cdk

   (22 stars - updated Apr 8, 2026)

   Generic Guardian flavoured AWS CDK components

8. commercial

   (16 stars - updated Apr 8, 2026)

   Guardian advertising business logic

9. support-service-lambdas

   (10 stars - updated Apr 8, 2026)

   Lambdas covering supporter operations, mostly in life operations

10. commercial-templates

    (8 stars - updated Apr 8, 2026)

    Guardian bespoke GAM native styles