OpnForm vs Revel
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?
OpnForm
Beautiful open-source form builder
VS
Revel
Community-focused event management and ticketing platform
| Feature | OpnForm | Revel |
|---|---|---|
| Category | Calendar & Contacts | Calendar & Contacts |
| License | AGPL-3.0 | MIT |
| Language | PHP | Python |
| Setup difficulty | Medium | Medium |
| Min. RAM | 512 MB | 512 MB |
| Deployment | docker | docker |
| GitHub stars | ★ 3,545 | ★ 106 |
| First released | 2026 | 2026 |
| Replaces | — | — |
Why pick each one
Choose OpnForm if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Active community (3.5k GitHub stars)
- Written in PHP
Choose Revel if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Written in Python
- Lightweight — runs in 512 MB RAM
Frequently asked questions
Is OpnForm or Revel better?
Neither is universally better. OpnForm has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are OpnForm and Revel free and open-source?
Yes. OpnForm is licensed under AGPL-3.0 and Revel under MIT. Both can be self-hosted at no software cost.
Can I run OpnForm and Revel with Docker?
OpnForm: yes. Revel: yes.