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Kurrier

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Updated: 23 Dec 2025
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Kurrier is a modern, self-hosted workspace for email, calendar, contacts and storage.

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Overview

Kurrier is a powerful self-hosted open-source workspace designed for managing email, calendars, contacts, and file storage in a unified manner. It aims to provide a modern alternative to traditional webmail and personal information management (PIM) suites, all while keeping user data secure and under their control. Whether you are running a personal server or a business, Kurrier offers a clean and efficient interface to manage all your communication needs without any vendor lock-in.

With features like strong synchronization capabilities and support for various providers, Kurrier stands out by allowing users to connect and manage different services seamlessly. The platform is built with a focus on privacy and flexibility, making it an excellent choice for those looking for a self-hosted solution.

Features

  • Kurrier Drive: Integrated WebDAV/S3 storage allows users to store and manage files within Kurrier, making file management simple and efficient.
  • Calendar Synchronization: Users can sync their calendars across multiple devices through CalDAV, ensuring they have access to their schedule no matter where they are.
  • Complete CardDAV Support: Instant synchronization of contacts means your address book updates simultaneously across all compatible devices.
  • Flexible Labeling: Organize emails easily with customizable multi-color labels to suit your inbox management style.
  • Unified Interface: Seamlessly integrate email, calendars, and contacts within a single, sleek web UI, enhancing user experience.
  • Open Standards Compliance: Enjoy the flexibility of using IMAP/SMTP, CalDAV, and CardDAV protocols without being tied to any particular vendor.
  • Developer-Friendly Ecosystem: Clean APIs and a delta sync model make Kurrier a versatile choice for developers looking to create custom solutions.
  • Docker-Ready Deployments: Effortlessly deploy Kurrier with Docker, ensuring a reliable and straightforward installation process.

Kurrier represents a significant advancement in self-hosted communication solutions, making it an attractive option for users prioritizing organization and privacy.