All Open Source Apps
Every app scored on repo health, technical quality, and dependency risk — before you install anything.
Category
Sort:Health Score
OpenReplay
Analytics
Self-hosted session replay and product analytics suite that lets you see exactly what users do on your web app — without sending data to third parties.
Outline
Collaboration · Knowledge Management
A fast, real-time collaborative knowledge base for growing teams built on React, Node.js, and ProseMirror.
Paperless-ngx
Bookmarks Archiving
Turn your paper pile into a searchable digital archive with OCR, AI classification, and automated workflows — all running on your own server.
Passbolt API
Password Manager · Security
Self-hosted, end-to-end encrypted password manager API built for teams who demand full ownership of their credentials.
Pixelfed
Social Media
A decentralized, self-hosted photo sharing platform built on ActivityPub for the open Fediverse.
QuestDB
Analytics · Databases
A high-performance, open-source time-series database built for financial market data, IoT telemetry, and real-time analytics, combining a zero-GC Java/C++ core with SIMD-accelerated SQL and a WAL-to-Parquet storage engine.
Rallly
Scheduling
Self-hostable group scheduling polls that eliminate back-and-forth emails and find the best meeting time for everyone.
Super Productivity
Productivity · Project Management
A privacy-respecting, local-first task manager with built-in timeboxing, Pomodoro timer, and deep integrations for Jira, GitHub, GitLab, and CalDAV — no accounts, no data collection, ever.
SuperTokens
Authentication · Security
Open-source authentication platform you self-host, giving you complete control over user data with zero vendor lock-in.
Tolgee
Developer Tools
In-context localization platform that lets developers and translators edit app strings directly in the running application, with AI-powered machine translation and framework SDKs for React, Angular, Vue, and Svelte.
Unleash
Ab Testing Experimentation · Developer Tools · Devops
The open-source feature management platform that lets you ship code to production and control who sees it — without redeploying.
Webstudio
Design Tools · No Code Platforms
Open source visual development platform with complete CSS control, headless CMS integration, and full infrastructure ownership
WrenAI
AI Agents · Analytics · Data Engineering
Open-source GenBI engine that lets AI agents turn natural-language questions into governed SQL, charts, and shareable dashboards across 20+ data sources — no vendor lock-in, no black-box prompts.
AFFiNE
Collaboration · Note Taking · Productivity
Write, draw, and plan in one infinite canvas — the open-source alternative to Notion and Miro that keeps your data yours.
Cline
AI Code Assistants
An open-source AI coding agent that lives in your editor and terminal — reads and edits your codebase, runs commands, browses the web, and requires human approval for every action by default.
Fern
Developer Tools
Fern turns a single OpenAPI, AsyncAPI, or Protobuf definition into type-safe SDKs for nine languages and a hosted API documentation site, all from one CLI and one source of truth.
GraphQL Hive
Developer Tools · Devops · Monitoring
Open-source GraphQL schema registry and observability platform with breaking change detection, federation support, and CI/CD integration for teams of any size.
Jan
AI Assistants
Run LLMs 100% locally with full privacy, or connect to cloud AI — your machine, your data, your control.
Keep
Automation · Devops · Monitoring
The open-source AIOps and alert management platform that unifies 130+ monitoring tools into a single pane of glass with AI-powered correlation, deduplication, and workflow automation.
Langflow
AI Agents · AI Development
Build, test, and deploy AI agents and RAG workflows visually with native API and MCP server export.
Leantime
Collaboration · Productivity · Project Management
Project management built for ADHD, autism, and dyslexia — simple as Trello, powerful as Jira
marimo
Data Engineering · Developer Tools
A reactive Python notebook that eliminates hidden state, runs reproducibly, and deploys as a web app or script — stored as pure Python, built for the AI era.
OneUptime
Monitoring
The complete open-source observability platform that replaces PagerDuty, Datadog, Sentry, and StatusPage with a single self-hostable system.
Arize Phoenix
Analytics · Devops · Monitoring
Open-source AI observability platform for tracing, evaluating, and debugging LLM applications with built-in intelligence and MCP support.