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.

Transform OpenAPI specifications into interactive, browser-based API documentation that developers and consumers can explore and test live.

Open-source CRM platform with metadata-driven customization, field-level permissions, and a full REST API — deploy on your own infrastructure.

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.

Modern Node.js forum software with real-time WebSockets, multi-database support, and a plugin ecosystem — the community platform built for the open web and the Fediverse.

Self-hosted Backend-as-a-Service for Node.js with REST, GraphQL, real-time Live Query, cloud code, and pluggable adapters for any infrastructure.

The friendly open-source .NET CMS that gives developers full control over content, structure, and delivery without lock-in.

Privacy-first, self-hosted analytics and customer engagement platform with full data ownership, GDPR compliance, and AI-powered insights across mobile, web, desktop, and IoT.

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.

The open source project management platform that unifies Gantt charts, agile boards, time tracking, and team collaboration under full self-hosted control.

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

Run your own federated social network on the open ActivityPub standard with no ads, no algorithms, and no corporate control over your community.

Open-source, privacy-first web and app analytics that puts you in complete control of your data.

Your own private cloud: self-hosted file sync, collaboration, and communication with no vendor lock-in.

Professional open-source time tracking with invoicing, multi-user support, SAML/LDAP auth, and a full REST API—self-host it or use the cloud.

Open-source AI-native platform to build and deploy internal tools, workflows, and AI agents with a visual drag-and-drop builder and 80+ data source integrations.

Self-hosted, open-source password management backend with zero-knowledge encryption and enterprise-grade identity services

Run your own help desk and shared inbox — a fully self-hosted, open-source alternative to Zendesk and Help Scout with no per-agent fees.

No-code, open-source game engine for building 2D, 3D and multiplayer games — publish to iOS, Android, Steam and the web.

Self-hosted read-it-later app that saves clean, ad-free articles from any webpage for distraction-free reading across all your devices.

Open-source Laravel eCommerce platform for building multi-vendor marketplaces, B2B stores, headless commerce, and AI-powered storefronts.

Open-source self-hosted PaaS — deploy apps, databases and 280+ services on your own servers with no vendor lock-in

The Free Software Media System — stream your entire media library from your own server, with no subscriptions, no tracking, and no strings attached.