# alfio-event/alf.io

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

Repository: https://github.com/alfio-event/alf.io
Canonical: https://ross.abutalabs.com/products/alfio
Homepage: https://alf.io
Language: Java
License: GPL-3.0
License Family: copyleft
Topics: alfio, java, event, reservation, ticketing, ticket, workshops, conferences, meetups
Last push: 2026-08-23T17:13:05+00:00

## Health v2 (maintenance only)
Score: 83/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 54, longevity 100
- inputs: {"age_days": 4421, "days_push": 10, "days_rel": 92, "gap_med": 183.5, "n_releases_24m": 5}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1604, forks 398 (observed 2026-08-28T04:05:10.274470+00:00)

## What it is
Alf.io is a free, open source ticket reservation and event attendance management system for conferences, trade shows, workshops, and meetups. It provides a public ticket shop, an organizer backoffice, check-in tooling (mobile apps and Raspberry Pi stations), and integrations with payment providers like Stripe, Mollie, PayPal, and bank transfer.

## Use cases
- sell tickets for a conference online
- manage attendee check-in at a meetup
- set up a self-hosted ticket reservation system
- handle workshop registrations with payments
- print badges and scan tickets at a trade show
- avoid per-ticket fees from commercial ticketing platforms

## When to choose
- you need full control over attendee data and privacy
- you want to avoid per-ticket service fees
- you run conferences, workshops, or meetups and need end-to-end ticketing
- you need offline-capable check-in stations

## When to avoid
- you need a fully hosted, zero-maintenance solution
- your event is very small and a simple form suffices
- you cannot run a Java application with PostgreSQL

## Facets
- artifact type: application
- maturity: stable
- function: web-framework, auth, email, self-hosted
- domain: e-commerce, web-development, self-hosted, developer-tools
- platform: self-hosted, jvm, cross-platform
- tags: ticketing, event-management, registration, check-in, payments, conference, java, spring-boot, web-server, docker

## Member repositories
- alfio-event/alf.io (main) score 83

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:10.274470+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:52:20.556760+00:00, confidence not recorded.
  - readme: https://github.com/alfio-event/alf.io (fetched 2026-08-28T04:05:10.274470+00:00, sha 77bf7d2b3762)
  - homepage: https://alf.io (fetched 2026-08-29T11:24:06.469176+00:00, sha c17dc801ee7d)
  - site_page: https://alf.io/docs (fetched 2026-08-29T11:24:06.478449+00:00, sha 72351ec3764c)
  - site_page: https://alf.io/docs/getting-started/deployment/heroku (fetched 2026-08-29T11:24:06.483700+00:00, sha d3919890d4c2)
  - site_page: https://alf.io/docs/getting-started/deployment/openshift (fetched 2026-08-29T11:24:06.485319+00:00, sha 6bbb570f1c7f)
  - site_page: https://alf.io/usage-form (fetched 2026-08-29T11:24:06.480356+00:00, sha 510b5079d184)
- Data as of 2026-08-30T08:39:29.467469+00:00.