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

   (5873 stars - updated Sep 18, 2025)

   The Guardian DotCom.

2. dotcom-rendering

   (257 stars - updated Sep 18, 2025)

   The Guardian web rendering service (aka DCR/DCAR)

3. giant

   (55 stars - updated Sep 18, 2025)

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

4. amigo

   (54 stars - updated Sep 18, 2025)

   AMIgo: An AMI bakery

5. prism

   (48 stars - updated Sep 18, 2025)

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

6. csnx

   (40 stars - updated Sep 18, 2025)

   Monorepo for Guardian UIs

7. support-frontend

   (26 stars - updated Sep 18, 2025)

   💁‍♀️❤️📰 Frontend for the Supporter platform

8. play-secret-rotation

   (14 stars - updated Sep 18, 2025)

   Rotate your Application Secret on an active cluster of Play app servers

9. support-service-lambdas

   (10 stars - updated Sep 18, 2025)

   Lambdas covering supporter operations, mostly in life operations

10. mobile-purchases

    (8 stars - updated Sep 18, 2025)

    Handle subscriptions on iOS and Android apps