Cal.diy vs Nextcloud Tasks
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?
| Feature | Cal.diy | Nextcloud Tasks |
|---|---|---|
| Category | Calendar & Contacts | Calendar & Contacts |
| License | MIT | AGPL-3.0 |
| Language | TypeScript | JavaScript |
| Setup difficulty | Medium | Easy |
| Min. RAM | 512 MB | 512 MB |
| Deployment | bare-metal | source |
| GitHub stars | ★ 47,334 | ★ 701 |
| First released | 2026 | 2016 |
| Replaces | — | Google Tasks, Todoist |
Why pick each one
Choose Cal.diy if…
- Released under the MIT license
- Mature project with 47.3k GitHub stars
- Written in TypeScript
- Lightweight — runs in 512 MB RAM
Choose Nextcloud Tasks if…
- Released under the AGPL-3.0 license
- Easy to set up — beginner-friendly
- Written in JavaScript
- Lightweight — runs in 512 MB RAM
Frequently asked questions
Is Cal.diy or Nextcloud Tasks better?
Neither is universally better. Cal.diy has the larger community, while Nextcloud Tasks is simpler to set up (easy difficulty). Choose based on the comparison table above and your own setup.
Are Cal.diy and Nextcloud Tasks free and open-source?
Yes. Cal.diy is licensed under MIT and Nextcloud Tasks under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Cal.diy and Nextcloud Tasks with Docker?
Cal.diy: check the project docs for container support. Nextcloud Tasks: check the project docs for container support.