events

Open Source Metering and Usage Based Billing API ⭐️ Consumption tracking, Subscription management, Pricing iterations, Payment orchestration & Revenue analytics

react ruby go open-source events analytics clickhouse invoices payments self-hosted pricing fintech ingestion billing subscriptions metering usage-based-billing pricing-data-science

UpdatedDec 15, 2025
Go

ddd-by-examples /library

Star5.6k

A comprehensive Domain-Driven Design example with problem space strategic analysis and various tactical patterns.

events crud spring ddd functions domain-driven-design aggregate hexagonal-architecture event-storming ddd-architecture c4 vavr aggregate-root ports-and-adapters archunit

UpdatedJul 7, 2023
Java

mark-when /markwhen

Star4.7k

Make a cascading timeline from markdown-like text. Supports simple American/European date styles, ISO8601, images, links, locations, and more.

visualization editor markdown events timeline maps calendar vscode project project-management vscode-extension gantt-chart gantt gantt-diagram markwhen

UpdatedDec 11, 2023
HTML

ankane /ahoy

Star4.4k

Simple, powerful, first-party analytics for Rails

rails events analytics visits first-party-analytics

UpdatedOct 24, 2025
Ruby

riemann /riemann

Star4.3k

A network event stream processing system, in Clojure.

events clojure monitoring metrics logging riemann monitoring-tool

UpdatedMay 31, 2025
Clojure

Attendize /Attendize

Star4.2k

Attendize is an open-source ticket selling and event management platform built on Laravel.

events laravel tickets ticketing event-management event-registration attendance door-management sell-tickets attendize

UpdatedAug 20, 2024
PHP

alextselegidis /easyappointments

Star4k

📅 Easy!Appointments - Self Hosted Appointment Scheduler

javascript mysql php sync events time web rest-api scheduler codeigniter google-calendar appointments

UpdatedDec 17, 2025
PHP

flexprice /flexprice

Star3.5k

Usage-based pricing and billing for developers 🔓 Cloud or self-hosted ⚙️ No-code UI 💰 Realtime usage metering 🎟 Credits & top-ups 🔑 Control feature access

go events kafka stripe clickhouse postgresql pricing billing hacktoberfest temporal stripe-subscriptions subscription-management usage-based-pricing

UpdatedDec 17, 2025
Go

HiEventsDev /Hi.Events

Sponsor

Star3.4k

Open-source event management and ticket selling platform — perfect for concerts, conferences, and everything in between 🎟️ If you find this project helpful, please consider giving us a star ⭐️

react open-source php events laravel event-management self-hosted event-registration door-management sell-tickets ticketing-system event-ticketing ticket-selling eventbrite-alternative tito-alternative attendize-alternative sell-tickets-online tickettailor-alternative event-check-in

UpdatedDec 17, 2025
PHP

krisleech /wisper

Star3.3k

A micro library providing Ruby objects with Publish-Subscribe capabilities

ruby events pubsub publish-subscribe

UpdatedAug 15, 2024
Ruby

Olical /EventEmitter

Sponsor

Star3.1k

Evented JavaScript for the browser

javascript events eventemitter

UpdatedMay 25, 2020
JavaScript

eventflow /EventFlow

Star2.5k

Async/await first CQRS+ES and DDD framework for .NET

c-sharp elasticsearch events framework cqrs sagas rabbitmq dotnet nuget ddd eventstore domain-driven-design event-sourcing netcore dotnet-core netstandard async-await eventsourcing cqrs-es

UpdatedDec 6, 2025
C#

LeaVerou /bliss

Sponsor

Star2.4k

Blissful JavaScript

promises events dom oop ajax es5

UpdatedApr 18, 2024
JavaScript

pretix /pretix

Star2.3k

Ticket shop application for conferences, festivals, concerts, tech events, shows, exhibitions, workshops, barcamps, etc.

javascript python html events django web shop tickets conferences pretix

UpdatedDec 17, 2025
Python

karafka /karafka

Star2.2k

Ruby and Rails efficient Kafka processing framework

ruby rails ruby-library events opensource kafka background-jobs kafka-consumer rubyonrails ruby-on-rails apache-kafka kafka-producer kafka-client kafka-clients kafka-manager karafka-framework kafka-monitor active-job kafka-ruby activejob-backend

UpdatedDec 17, 2025
Ruby

indico /indico

Star2k

Indico - A feature-rich event management system, made @ CERN, the place where the Web was born.

python flask events sqlalchemy conferences hacktoberfest

UpdatedDec 17, 2025
Python

pakerwreah /Calendr

Sponsor

Star2k

Menu bar calendar for macOS - MVVM | RxSwift | AppKit | SwiftUI

macos productivity menubar events schedule rxswift calendar mvvm agenda work reminders meetings

UpdatedNov 28, 2025
Swift

Cosmo /TinyConsole

Star2k

TinyConsole is a micro-console that can help you log and display information inside an iOS application, where having a connection to a development computer is not possible.

console ios events helper log tool

UpdatedSep 30, 2019
Swift

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events

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vectordotdev /vector

ThreeDotsLabs /watermill

getlago /lago

ddd-by-examples /library

mark-when /markwhen

ankane /ahoy

riemann /riemann

Attendize /Attendize

alextselegidis /easyappointments

flexprice /flexprice

HiEventsDev /Hi.Events

krisleech /wisper

Olical /EventEmitter

eventflow /EventFlow

LeaVerou /bliss

pretix /pretix

karafka /karafka

indico /indico

pakerwreah /Calendr

Cosmo /TinyConsole

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