All Open Source Apps

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

Your open source window into the Elastic Stack — query, visualize, and act on data stored in Elasticsearch with real-time dashboards, AI-assisted search, and automated alerting.

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 core, self-hosted team collaboration with chat, AI agents, voice calling, and deep DevOps integrations — all under your control.

The secure, self-hosted team communications platform for organizations that cannot compromise on data sovereignty.

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

Code when you need it, UI when you don't — the workflow automation platform built for technical teams who refuse to choose.

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

The 100% MIT-licensed, community-driven scheduling platform — self-host your own booking infrastructure with no enterprise strings attached.

Build product integrations with AI using 800+ APIs — auth, proxy, and TypeScript functions on production-grade infrastructure.

Open-source AI + no-code platform that lets coding agents and people collaborate to build business systems fast on proven infrastructure.

Build sophisticated chatbots visually, embed them anywhere without iframes, and own your data — fully self-hostable with a modular block system and 30+ integrations.

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

Connect any SQL database and get instant REST and GraphQL APIs, a visual management Studio, and a native MCP server for AI agents — free for most organizations.

Build, debug, and deploy knowledge-based AI agents with a visual workflow editor, RAG retrieval, and support for any OpenAI-compatible LLM.

Open-source experience management platform for in-app, website, email, and link surveys — privacy-first and fully self-hostable.

The privacy-first, open-source note-taking app with end-to-end encrypted sync, AI assistance, and a powerful plugin ecosystem across every platform.

The open-source Looker alternative that turns your dbt project's metrics and dimensions into governed, self-serve charts and dashboards — no license key required.

Open-source communication infrastructure that connects your products and AI agents to every channel your users live on — Inbox, Email, SMS, Push, Chat, and more.

Open-source headless CMS that auto-generates REST and GraphQL APIs from your content models, with a fully customizable admin panel you control.

Open-source AI automation platform that converts 280+ workflow integrations into MCP servers for LLMs, with no-code builders and TypeScript extensibility.

The self-hosted Identity Provider that replaces Okta, Auth0, and Entra ID with a unified SSO platform supporting SAML, OAuth2/OIDC, LDAP, RADIUS, and WebAuthn.