Kurrier is an open-source, self-hosted workspace and instant webmail client designed to turn your existing email credentials into a modern, private, and fully searchable inbox.

The main features of this tool include:

• Universal Provider Support: Kurrier can integrate with any IMAP/SMTP account, including popular services like Gmail, SES, and SendGrid, automatically building a working inbox complete with threads and attachments.

• Complete Privacy and Data Sovereignty: As a self-hosted solution, it runs on your own server or laptop, ensuring that your data and credentials stay under your control with no external tracking or telemetry.

• Unified Workspace Integration: Beyond email, it acts as a central hub for your calendar, contacts, and storage by integrating with CalDAV, CardDAV, and WebDAV services.

• Reliable Automatic Synchronization: The platform continuously syncs new messages, sent items, and deletions to ensure your local inbox is always up to date.

• Fast Local Search: It features local indexing for instant searching of subjects, senders, and content, removing any dependency on external cloud APIs for retrieval.

• Simple Deployment and Extensibility: Users can get started in minutes using Docker or by running it from source. Its open-source nature allows developers to extend providers or integrate the tool into their own custom projects.