The UI Extensions SDK is a JavaScript library that allows developers to create custom UI Extensions for the Contentful Web App. Every UI Extension has to include the library in its source.

• UI Extensions general documentation
• UI Extensions SDK reference
• UI Extensions Management HTTP API reference
• UI Extensions FAQ
• Contentful Extensions repository
• Contentful Marketplace
• Contentful Changelog
• Forma 36: The Contentful Design System
• Forma 36 guide for UI Extensions
• contentful-ui-extensions-sdk at npm
• create-contentful-extension - CLI tool for developing extensions without the hassle of managing build configurations

Technical questions, feedback or feature request can be provided directly through the Github issues for this repository. However, if you are a paying customer or at any point business sensitive information needs to be discussed, then the conversation should be handled via our support system.