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

alf.io is a free, open source ticket reservation and event attendance management system designed for event organizers who prioritize privacy, security, and fair pricing. Built with Java and PostgreSQL, it provides a self-hosted alternative to commercial ticketing platforms, giving you complete control over your event data and customer information.
alf.io is ideal for event organizers and tech-savvy teams who want to self-host their ticketing infrastructure, maintain customer privacy, and avoid vendor lock-in from commercial ticketing providers.

Rallly is an open-source scheduling and collaboration tool designed to make organizing events and meetings easier.

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 ⭐️

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 ⭐️

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

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

Open Source Event Manager. An event management tool tailored to Free and Open Source Software conferences.

🌐 The Internet Computer! Free, Open-Source, and Self-Hostable.

:hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error tracking, logs, and more – capture all the context agents need to diagnose problems, uncover opportunities, and ship fixes. Steer it all from Slack, web, desktop, or the MCP.

Infisical is the open-source platform for secrets, certificates, and privileged access management.

A self hosted virtual browser that runs in docker and uses WebRTC.

Weighs the soul of incoming HTTP requests to stop AI crawlers

Kodi is an award-winning free and open source home theater/media center software and entertainment hub for digital media. With its beautiful interface and powerful skinning engine, it's available for Android, BSD, Linux, macOS, iOS, tvOS and Windows.

Ready-to-use Media-over-QUIC / SRT / WebRTC / RTSP / RTMP / LL-HLS / MPEG-TS / RTP live media server and media proxy that allows to read, publish, proxy, record and playback real-time video and audio streams.

Free and Open Source Machine Translation API. Self-hosted, offline capable and easy to setup.

ActivityPub-federated video streaming platform using P2P directly in your web browser

Style and Grammar Checker for 25+ Languages