hash-calendar vs Open Web Calendar
A side-by-side comparison of two self-hosted file sync & storage options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
hash-calendar
Lightweight calendar app where the data lives in the URL hash
VS
Open Web Calendar
Embed a web calendar into your own website
| Feature | hash-calendar | Open Web Calendar |
|---|---|---|
| Category | File Sync & Storage | File Sync & Storage |
| License | MIT | GPL-2.0 |
| Language | JavaScript | Python |
| Setup difficulty | Medium | Easy |
| Min. RAM | 512 MB | 50 MB |
| Deployment | bare-metal | bare-metal |
| GitHub stars | ★ 69 | ★ 330 |
| First released | 2026 | 2024 |
| Replaces | Google Agenda, Microsoft Outlook | Google Agenda, Microsoft Outlook |
Why pick each one
Choose hash-calendar if…
- Released under the MIT license
- Written in JavaScript
- Lightweight — runs in 512 MB RAM
Choose Open Web Calendar if…
- Released under the GPL-2.0 license
- Easy to set up — beginner-friendly
- Written in Python
- Tiny footprint — runs in 50 MB RAM
Frequently asked questions
Is hash-calendar or Open Web Calendar better?
Open Web Calendar is the stronger all-round pick: it has both the larger community and the simpler easy setup. Consider hash-calendar if its specific feature set fits your needs better.
Are hash-calendar and Open Web Calendar free and open-source?
Yes. hash-calendar is licensed under MIT and Open Web Calendar under GPL-2.0. Both can be self-hosted at no software cost.
Can I run hash-calendar and Open Web Calendar with Docker?
hash-calendar: check the project docs for container support. Open Web Calendar: check the project docs for container support.