Open source events projects

Every project in the registry tagged events, ranked by real GitHub adoption.

projects 9 combined stars ★ 49K refresh nightly
01 Vector ★ 23K

Collect, transform, and route logs and metrics in one tool

last push3 hours ago languageRust licenseMPL-2.0
02 Lago ★ 11K

Transform complex usage data into accurate, real-time billing

last push10 hours ago languageGo licenseAGPL-3.0
03 Flexprice ★ 5.5K

Open source metering and billing infrastructure for any pricing model

last push7 hours ago languageGo licenseAGPL-3.0
04 Easy!Appointments ★ 4.4K

Free open-source appointment booking for any business

last push3 days ago languagePHP licenseGPL-3.0
05 Hi.Events ★ 4.0K

Effortlessly manage events and sell tickets online

last push27 hours ago languagePHP license
06 laminas-eventmanager ★ 1.0K

Trigger and listen to events within a PHP application

last push4 days ago languagePHP licenseBSD-3-Clause
07 hackertab.dev ★ 772

A Chrome 🌐 & Firefox 🦊 extension to discover the latest developer news and tools in one tab!

last push24 days ago languageTypeScript licenseApache-2.0
08 event ★ 578

📢 Lightweight event manager and dispatcher implements by Go. Go实现的轻量级的事件管理、调度程序库, 支持设置监听器的优先级, 支持使用通配符来进行一组事件的监听

last push2 months ago languageGo licenseMIT
09 Chobble Tickets ★ 32

Event ticketing with no per-ticket platform fees

last push12 hours ago languageTypeScript licenseAGPL-3.0

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Frequently asked questions

How many open source events projects are there?

This registry tracks 9 projects tagged events, with 49,454 GitHub stars between them. The most-adopted is Vector at 22,579 stars.

Are these events projects free to use?

Yes — 8 of the 9 carry an explicit open-source licence across 6 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.

Which events project should I choose?

The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.

Are these events projects still maintained?

9 of the 9 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.