ℹ️ Pull-requests are welcome!
| Name | Source | Maturity¹ | Backend Language | License |
|---|---|---|---|---|
| Agorakit | GitHub | mature | PHP | GPLv3 |
| attendize | GitHub | mature | PHP | Attribution Assurance License |
| Calendar.social | gitea | inactive | Python | AGPLv3 |
| Chapter by freeCodeCamp | GitHub | inactive | JavaScript | BSD 3-Clause |
| Communecter | GitHub | inactive | PHP | Apache 2.0 |
| Epicyon | GitLab | new | Python | AGPLv3 |
| eventoL | GitHub | mature | Python | GPLv3 |
| Friendica | GitHub | mature | PHP | AGPLv3 |
| Gancio | Framagit | new | JavaScript | AGPLv3 |
| Gath | GitHub | new | JavaScript | GPLv3 |
| GetTogether | GitHub | inactive | Python | BSD 2-Clause |
| Gospeak | GitHub | inactive | Scala | Apache 2.0 |
| Hubzilla | Framagit | mature | PHP | MIT |
| Human Connection | GitHub | inactive | JavaScript | MIT |
| joind.in | GitHub | mature | PHP | BSD 3-Clause |
| Meetdown | GitHub | inactive | Structr | Apache 2.0 |
| Meetup Alternative by Thinkmill | GitHub | inactive | JavaScript | unlicensed |
| Mobilizon | framagit.org | in development | Elixir | AGPL |
| on_ruby | GitHub | mature | Ruby | (extended) Beer-ware |
| Open Event | GitHub: Frontend, Backend | mature | Python | Apache 2.0 & GPLv3 |
| Open Tech Calendar | GitLab | mature | PHP | BSD 3-Clause |
| Openki | Gitlab | mature | MeteorJS | AGPLv3 |
| OSEM | GitHub | mature | Ruby | MIT |
| Pretix | Gitlab | mature | Python | Apache 2.0 |
| Upcoming | GitHub | mature | JavaScript | Apache 2.0 |
¹: mature = the project is actively used by groups, new = this is a new project with no usable software, in development = usable software exists, but is not ready for general use, inactive = was under development, but more than 1 year without commits