SHSelfHostIndex
AL

Alf.io

Ticket reservation system

Calendar & Contacts ★ 1.6k stars Medium setup GPL-3.0

alf.io - The open source ticket reservation system for conferences, trade shows, workshops, meetups

Official siteSource code

Strengths

  • Released under the GPL-3.0 license
  • Active community (1.6k GitHub stars)
  • Written in Java
  • Lightweight — runs in 512 MB RAM

Is Alf.io secure?

No known vulnerabilities affect Alf.io's latest release (2.0-M5-2609). OSV.dev lists 14 past advisories for the project; none of them applies to this release. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

  • Most recent fixed advisory CVE-2026-50165, published 2026-09-09 (35 days ago), fixed in 2.0-M5-2606

Source: OSV.dev, checked 2026-10-14. How this is measured.

Health badge

Maintain Alf.io? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 88 · excellent

Markdown
[![SelfHostIndex health score for Alf.io](https://selfhostindex.com/badge/alf-io.svg)](https://selfhostindex.com/app/alf-io/)
HTML
<a href="https://selfhostindex.com/app/alf-io/"><img src="https://selfhostindex.com/badge/alf-io.svg" alt="SelfHostIndex health score for Alf.io"></a>
reStructuredText
.. image:: https://selfhostindex.com/badge/alf-io.svg
   :alt: SelfHostIndex health score for Alf.io
   :target: https://selfhostindex.com/app/alf-io/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

Similar calendar & contacts apps