Open Source Scheduling & Event Management Tools

Open source scheduling & event management tools

projects 23 combined stars ★ 138K refresh nightly

Scheduling & Event Management is one of the most active slices of the open source world — the 5 projects below are ranked by GitHub stars, which makes this page roughly a community-voted shortlist rather than a vendor-curated catalogue. Every card shows the license and the last-commit date, so you can filter out the two failure modes of free software in one glance: restrictive licensing that blocks your use case, and abandonment that leaves you maintaining a fork. When two projects look comparable, prefer the one with more recent activity and the more permissive license (MIT/Apache-2.0 over AGPL) unless copyleft specifically serves your goals. Hover into any project for its full README — the documentation quality is usually the honest tell of engineering quality.

All Scheduling & Event Management tools

Cal.com ★ 49K

Self-host your own scheduling page, no vendor required

rank001 licenseMIT written inTypeScript typeScheduling & Event Management

luigi ★ 19K

Luigi is a Python module that helps you build complex pipelines of batch jobs. It handles dependency resolution, workflow management, visualization etc. It also

rank002 licenseApache-2.0 written inPython typeScheduling & Event Management

salt ★ 16K

Software to automate the management and configuration of infrastructure and applications at scale.

rank003 licenseApache-2.0 written inPython typeScheduling & Event Management

Tone.js ★ 15K

A Web Audio framework for making interactive music in the browser.

rank004 licenseMIT written inTypeScript typeScheduling & Event Management

apscheduler ★ 7.6K

Task scheduling library for Python

rank005 licenseMIT written inPython typeScheduling & Event Management

Rallly ★ 5.3K

Effortless group scheduling for seamless collaboration

rank006 licenseAGPL-3.0 written inTypeScript typeScheduling & Event Management

Easy!Appointments ★ 4.4K

Free open-source appointment booking for any business

rank007 licenseGPL-3.0 written inPHP typeScheduling & Event Management

Hi.Events ★ 4.0K

Effortlessly manage events and sell tickets online

rank008 licenseNOASSERTION written inPHP typeScheduling & Event Management

croner ★ 2.6K

Trigger functions or evaluate cron expressions in JavaScript or TypeScript. No dependencies. Most features. Node. Deno. Bun. Browser.

rank009 licenseMIT written inTypeScript typeScheduling & Event Management

brightbean-studio ★ 2.3K

Open-source, self-hostable social media management platform. Schedule, publish, and manage content across 10+ platforms from a single dashboard. Free alternativ

rank010 licenseAGPL-3.0 written inPython typeScheduling & Event Management

Saturn ★ 2.3K

The vip.com's distributed job scheduling platform.

rank011 licenseApache-2.0 written inJava typeScheduling & Event Management

nexrender ★ 1.9K

📹 Data-driven render automation for After Effects

rank012 licenseMIT written inJavaScript typeScheduling & Event Management

laravel-totem ★ 1.8K

Manage Your Laravel Schedule From A Web Dashboard

rank013 licenseMIT written inPHP typeScheduling & Event Management

koordinator ★ 1.8K

A QoS-based scheduling system brings optimal layout and status to workloads such as microservices, web services, big data jobs, AI jobs, etc.

rank014 licenseApache-2.0 written inGo typeScheduling & Event Management

someday ★ 1.1K

Free to host calendar availability picker - open-source cal.com / calendly alternative built on Google-Apps-Script for Gmail users. Built with modern technologi

rank015 licenseMIT written inTypeScript typeScheduling & Event Management

laminas-eventmanager ★ 1.0K

Trigger and listen to events within a PHP application

rank016 licenseBSD-3-Clause written inPHP typeScheduling & Event Management

liubai ★ 864

Supercharge yourself!

rank017 licenseAGPL-3.0 written inTypeScript typeScheduling & Event Management

ical4j ★ 837

A Java library for parsing and building iCalendar data models

rank018 licenseBSD-3-Clause written inJava typeScheduling & Event Management

kubestellar ★ 711

KubeStellar - a flexible solution for multi-cluster configuration management for edge, multi-cloud, and hybrid cloud

rank019 licenseApache-2.0 written inGo typeScheduling & Event Management

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

rank020 licenseMIT written inGo typeScheduling & Event Management

appointment ★ 552

Invite others to grab times on your calendar. Choose a date. Make appointments as easy as it gets.

rank021 licenseMPL-2.0 written inPython typeScheduling & Event Management

Rythe-Engine ★ 534

Rythe is a data-oriented C++20 game engine built to make optimal use of modern hardware.

rank022 licenseMIT written inC++ typeScheduling & Event Management

Chobble Tickets ★ 32

Event ticketing with no per-ticket platform fees

rank023 licenseAGPL-3.0 written inTypeScript typeScheduling & Event Management

Frequently asked questions

How many open source Scheduling & Event Management tools are there?

This registry tracks 23 open source Scheduling & Event Management projects, with 137,830 combined GitHub stars. The list is ranked by stars and refreshed nightly.

What is the most popular open source Scheduling & Event Management project?

Cal.com leads this category with 48,529 GitHub stars, followed by luigi.

Are these Scheduling & Event Management tools free?

Yes — every project listed here is open source. Some also offer paid hosted versions alongside the free self-hosted option; the licence for each project is shown on its card.