AgenDAV vs Tasks.org Server alt nono Calendarserver

A side-by-side comparison of two self-hosted calendar & contacts options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up? Compare AgenDAV with Compare Tasks.org Server alt nono Calendarserver with

AG AgenDAV CalDAV web client with an Ajax interface VS TA Tasks.org Server alt nono Calendarserver Archived Standards-compliant calendar and scheduling server

Feature	AgenDAV	Tasks.org Server alt nono Calendarserver
Deploy effort	Under-an-hour setup	Read-the-docs project
Health score	81 · Excellent	10 · At risk
Status	Actively maintained	Archived
Category	Calendar & Contacts	Calendar & Contacts
License	GPL-3.0	Apache-2.0
Language	PHP	Python
Setup difficulty	Medium	Hard
Min. RAM	128 MB	512 MB
Deployment	bare-metal, docker	bare-metal, source
GitHub stars	★ 826	★ 507
First released	2011	2007
Replaces	Google Calendar	Google Calendar, Exchange

What are AgenDAV and Tasks.org Server alt nono Calendarserver?

AgenDAV

AgenDAV is a CalDAV web client that lets users manage and share calendars stored on a CalDAV server. It provides a responsive Ajax interface with drag-and-drop event editing.

CalDAV web frontend
Drag-and-drop event editing
Calendar sharing

Tasks.org Server alt nono Calendarserver

Calendar and Contacts Server is a CalDAV and CardDAV server originally developed by Apple. It provides shared calendaring, scheduling, and directory services for groups.

Originated at Apple
Group scheduling support
Standards-compliant CalDAV

AgenDAV vs Tasks.org Server alt nono Calendarserver: key differences

The biggest difference is maintenance: Tasks.org Server alt nono Calendarserver's repository is archived and no longer developed, while AgenDAV is actively maintained. AgenDAV is written in PHP, while Tasks.org Server alt nono Calendarserver is built with Python. Licensing differs — GPL-3.0 for AgenDAV versus Apache-2.0 for Tasks.org Server alt nono Calendarserver. AgenDAV is the lighter option, starting around 128 MB of RAM against 512 MB for Tasks.org Server alt nono Calendarserver. Tasks.org Server alt nono Calendarserver is the more established project (first released 2007), while AgenDAV arrived in 2011. AgenDAV lists first-class Docker deployment; Tasks.org Server alt nono Calendarserver does not.

Why pick each one

Choose AgenDAV if…

Released under the GPL-3.0 license
First-class Docker support for quick deployment
Written in PHP
Tiny footprint — runs in 128 MB RAM

AgenDAV details

Choose Tasks.org Server alt nono Calendarserver if…

Released under the Apache-2.0 license
Written in Python
Lightweight — runs in 512 MB RAM

Tasks.org Server alt nono Calendarserver details

Frequently asked questions

Is AgenDAV or Tasks.org Server alt nono Calendarserver better?

AgenDAV is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Tasks.org Server alt nono Calendarserver if its specific feature set fits your needs better.

Are AgenDAV and Tasks.org Server alt nono Calendarserver free and open-source?

Yes. AgenDAV is licensed under GPL-3.0 and Tasks.org Server alt nono Calendarserver under Apache-2.0. Both can be self-hosted at no software cost.

Can I run AgenDAV and Tasks.org Server alt nono Calendarserver with Docker?

AgenDAV: yes. Tasks.org Server alt nono Calendarserver: check the project docs for container support.

Which is lighter on resources, AgenDAV or Tasks.org Server alt nono Calendarserver?

AgenDAV has the smaller minimum footprint at 128 MB of RAM, compared to about 512 MB for Tasks.org Server alt nono Calendarserver. Real-world usage depends on library size, user count, and enabled features.