HyperKitty

HyperKitty is a web application that provides a modern interface for browsing and searching mailing list archives, designed to work with the GNU Mailman 3 suite. It archives messages, presents conversations in a thread-oriented view, and offers user-facing tools for interacting with list content.

Key Features

• Web-based archives with thread and conversation views
• Full-text search across archived messages
• Per-message pages with metadata and navigation within threads
• User profiles and posting/activity history (when authentication is configured)
• Integration with Mailman 3 components for archiving and list interaction
• Administrative moderation-oriented views and archive management capabilities

Use Cases

• Hosting searchable public or private archives for Mailman 3 mailing lists
• Replacing traditional pipermail-style archives with a modern web UI
• Providing community-facing mailing list history for open source projects or organizations

Limitations and Considerations

• Primarily intended for the Mailman 3 ecosystem; it is not a standalone mailing list manager
• Feature set and authentication/SSO capabilities depend on how it is deployed and integrated with other Mailman 3 services

HyperKitty is a strong fit for communities that rely on mailing lists and want a more accessible, searchable archive experience. When deployed alongside Mailman 3, it helps make long-running conversations easier to browse, reference, and preserve.