All Open Source Apps

Open-source online accounting for small businesses and freelancers — invoices, expenses, and reporting without monthly fees or vendor lock-in.

The world's largest open source marketing automation platform — own your data, run multi-channel campaigns, and escape vendor lock-in forever.

Self-hostable invoicing, time-tracking, and multi-gateway payment platform for freelancers and small businesses, with built-in e-invoicing compliance for EU and global standards.

A developer-first PHP CMS with clean-slate content modeling, auto-generated GraphQL API, and a four-tier edition system that scales from solo projects to enterprise deployments.

Open-source omnichannel customer support platform with AI-powered agents, live chat, and self-hosting — a full Intercom and Zendesk alternative.

Open-source authentication platform you self-host, giving you complete control over user data with zero vendor lock-in.

The open-source PDF platform you can run anywhere — edit, convert, sign, and automate PDFs without sending files to external servers.

A fast, free, and focused Kanban tool from 37signals that strips away corporate bloat to help teams track bugs, issues, and ideas with clarity.

Self-hosted event ticketing platform that keeps your attendee data, brand, and revenue completely under your control.

Build unlimited, embeddable forms with no code — powered by AI, logic rules, and real-time analytics

The open-source, self-hosted status page system that keeps your users informed during outages and maintenance windows.

The world's most popular open-source CMS — now with a built-in AI client SDK, 196 native blocks, and full-site editing for PHP-powered publishing at any scale.

The complete DevOps platform that unifies Git hosting, CI/CD, issue tracking, and security scanning into a single self-hostable application.

Unified open-source platform for AI agent orchestration and workflow automation with 180+ connectors, MCP support, and durable execution.

Self-hostable subscription management and billing platform with Stripe integration, tax automation, configurable workflows, and Twig-based document generation.