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.

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.

The open source AI engineering platform for debugging, evaluating, monitoring, and optimizing production LLMs and agents at scale.

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

Define, schedule, and monitor complex data workflows as Python code — with a powerful UI, 80+ provider integrations, and battle-tested scalability across thousands of production deployments.

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.

100% free, open-source ERP unifying accounting, manufacturing, inventory, CRM, HR, and POS in a single self-hostable platform.

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

Topic-based team chat that brings the structure of email threads to real-time messaging, so distributed teams never lose context across hundreds of concurrent conversations.

Open-source ELT platform with 600+ connectors for moving data from any source to warehouses, lakes, and AI agents.

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

Auto-magical MLOps platform that tracks experiments, versions data, orchestrates pipelines, and serves models with just two lines of code.

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.

Developer-first error tracking and performance monitoring platform with AI-powered root-cause analysis across 20+ languages and frameworks.

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

Continuous localization platform that commits translations directly into your version control system with full translator attribution.

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.

Build, run, and manage agent platforms with a full production stack — SDK, runtime, and control plane included.

Build, deploy, and run autonomous AI agents that automate complex multi-step workflows using a visual block-based graph editor.

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.