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 Nov 7, 2025)

   The Guardian DotCom.

2. grid

   (1451 stars - updated Nov 7, 2025)

   The Guardian’s image management system

3. dotcom-rendering

   (259 stars - updated Nov 7, 2025)

   The Guardian web rendering service (aka DCR/DCAR)

4. giant

   (56 stars - updated Nov 7, 2025)

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

5. amigo

   (54 stars - updated Nov 7, 2025)

   AMIgo: An AMI bakery

6. csnx

   (40 stars - updated Nov 7, 2025)

   Monorepo for Guardian UIs

7. commercial

   (15 stars - updated Nov 7, 2025)

   Guardian advertising business logic

8. gateway

   (13 stars - updated Nov 7, 2025)

   🕵️🆔👤The platform for authentication at (profile.)theguardian.com

9. janus-app

   (12 stars - updated Nov 7, 2025)

   Google-backed AWS account access

10. support-service-lambdas

    (10 stars - updated Nov 7, 2025)

    Lambdas covering supporter operations, mostly in life operations