Radicale
A small but powerful CalDAV and CardDAV server for calendars, to-do lists and contacts.
Smart Download
Visit Project Homepage
No installer available yet — head to the source repository
Self-host your calendars and contacts with a lightweight, zero-config server.
Core Features
- CalDAV for calendars, tasks, journal entries
- CardDAV for contacts/address books
- Works out-of-the-box, no database required
- TLS encryption and authentication supported
- Extensible via plugins
What It Can't Do
- •No authentication by default; enable it or use a reverse proxy for production. 2. Multi-user setup requires manual configuration. 3. Not designed for high concurrency; best for personal/small team use. 4. Lacks a built-in web UI (unlike Baikal or Nextcloud).
Use Cases
- Self-hosted alternative to Google Calendar/Contacts for individuals
- Lightweight PIM server for small teams or family
- Running on low-resource devices like Raspberry Pi
Radicale is a lightweight, self-hosted CalDAV (calendars, to-do lists) and CardDAV (contacts) server. It works out-of-the-box with minimal setup, supports TLS encryption, authentication, and plugin extensions. Data is stored in a simple folder structure on the file system, making it easy to backup and migrate. It is compatible with many CalDAV/CardDAV clients and is licensed under GPLv3. Radicale is ideal for individuals and small teams who want full control over their scheduling and contact data without relying on third-party services.
Tags
Getting Started
Download installer
Click the button above to download the installer for your system
Install the software
Double-click the downloaded installer and follow the prompts
Step 1: Install Python and pip (if not already installed)
Step 2: Run 'pip install radicale'
Step 3: Start server with 'radicale' (default port 5232)
- Step 1: Install Python and pip (if not already installed)
- Step 2: Run 'pip install radicale'
- Step 3: Start server with 'radicale' (default port 5232)
Checksum not available
This project has not published a SHA-256 checksum on its GitHub Release page
SHA256 Checksum
No checksum available
Download directly from GitHub Releases and verify file integrity yourself
All SHA-256 checksums on this platform are extracted from the project's official GitHub Release page, without any modification. You can independently verify them on the GitHub Releases page.
Open Source Transparency
View GitHub SourceUninstall Info
Run 'pip uninstall radicale' and remove config directory ~/.config/radicale to delete all data.
No Extra Dependencies
Ready to use after download. No additional runtime required.
Having issues? Check the FAQ below
3 FAQs
Similar Projects
Huginn
Huginn lets you build agents that automate online tasks. Events propagate through a directed graph. Monitor web, Twitter, email, and more.
RSSHub
RSSHub is the world's largest open-source RSS network. It generates RSS feeds from virtually any website, with over 5,000 instances and a thriving community. Perfect for aggregating social media, news, blogs, and more.
Puter
An open-source internet computer that lets you access all your files, apps, and games from anywhere, with self-hosting for full control.