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LFX Insights

Calendar Applications

Open‐source calendar apps that provide event scheduling, calendar sharing, and CalDAV integration features—often deployed in self‐hosted, collaborative environments.

9 projects

11,917 contributors

$41M

Cal.com

Cal.com is an open-source scheduling infrastructure and meeting scheduling platform that allows users to share their availability and coordinate meetings. It provides customizable booking pages, calendar integrations, and automated scheduling workflows for individuals and organizations.

Contributors

7,243

Organizations

1,239

Software value

$33M

Nextcloud Calendar

A calendar application for Nextcloud that provides personal calendar management and scheduling functionality, allowing users to create, edit and share calendars within the Nextcloud platform.

Contributors

2,918

Organizations

530

Software value

$4.5M

Radicale

A simple CalDAV (calendar) and CardDAV (contact) server.

Contributors

1,499

Organizations

349

Software value

$590K

Libical

Libical is an open source implementation of the iCalendar protocols and data formats. It provides a library for parsing, generating, and manipulating iCalendar data, supporting both C and C++ interfaces.

Contributors

257

Organizations

93

Software value

$2.9M

DAVx⁵

DAVx⁵ is an open-source CalDAV/CardDAV suite and sync app for Android. You can also access your online files (WebDAV) with it.

This project hasn't been onboarded to LFX Insights.

Easy!Appointments

:date: Easy!Appointments - Self Hosted Appointment Scheduler

This project hasn't been onboarded to LFX Insights.

Etar Calendar

Android open source calendar

This project hasn't been onboarded to LFX Insights.

Rallly

Rallly is an open-source scheduling and collaboration tool designed to make organizing events and meetings easier.

This project hasn't been onboarded to LFX Insights.

gcalcli

Google Calendar Command Line Interface

This project hasn't been onboarded to LFX Insights.
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