Open-source platform for event management, online ticket sales, and attendee check-in with branded event pages, promo codes, analytics, and Stripe payouts.

4k stars706 forkslast commit Actively maintained
Cvent is an event management SaaS for planning and executing in-person, virtual, and hybrid events. It provides registration and ticketing, venue sourcing, event marketing, attendee engagement tools, on-site check-in, and reporting/analytics.
Open-source platform for event management, online ticket sales, and attendee check-in with branded event pages, promo codes, analytics, and Stripe payouts.

4k stars706 forkslast commit Actively maintained
Indico is a web-based event management platform for meetings, lectures, workshops, and conferences, with workflows for registration, reviewing, and room booking.

2.1k stars548 forksMITlast commit Actively maintained
Alf.io is an open source ticket reservation and event attendance management system for conferences, workshops, meetups, and trade shows.

1.6k stars398 forksGPL-3.0last commit Actively maintained
pretalx is open-source conference management software for call for papers, speaker and reviewer workflows, scheduling, and publishing event programs.

938 stars255 forkslast commit Actively maintained
OSEM (Open Source Event Manager) is a web app for managing conferences, including call for papers, scheduling, registration, ticketing, and event splash pages.

925 stars502 forksMITlast commit Actively maintained
OpenSlides is a web-based assembly and event system for managing agendas, motions, speakers lists, and conducting digital elections and votes.

638 stars183 forksMITlast commit Actively maintained
Open-source web application for complex organization hierarchies: members, events, courses, mailings and payments. Plugin-based, Rails-backed, community-driven.

476 stars135 forksAGPL-3.0last commit Actively maintained
Open-source PHP membership and user management system for clubs, associations and organizations with roles, events, media, documents and exports.

472 stars167 forksGPL-2.0last commit Actively maintained
Open-source platform to submit, discuss, amend and vote on motions and resolutions; supports speaking lists, roll calls, PDF/CSV exports and SSO integration.

145 stars37 forksAGPL-3.0last commit Actively maintained
Atria is an AGPL-3.0 open-source platform for managing hybrid events, sessions, sponsors, and real-time attendee networking with chat and discovery tools.

98 stars4 forksAGPL-3.0last commit Slowing down
Gancio is a self-hosted shared agenda for local communities, with anonymous event publishing, RSS/ICS exports, embeddable listings, and ActivityPub federation.

Activity unknown
Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 9 of 11 shipped a commit in the last six months. Licences in this list: MIT, GPL-3.0, AGPL-3.0, GPL-2.0. In exchange you take on hosting, backups and updates yourself.
Browse everything in Community Events & Conference Management.