All Open Source Apps
Every app scored on repo health, technical quality, and dependency risk — before you install anything.
Category
Sort:Health Score
PostHog
Ab Testing Experimentation · Analytics · Developer Tools
The all-in-one open source product platform combining analytics, session replay, feature flags, error tracking, AI observability, and a built-in data warehouse in a single self-hostable stack.
Qdrant
AI Development · Databases · Search
Open-source vector database and search engine built in Rust for production-grade AI applications — from semantic search to RAG pipelines and recommendation systems.
SillyTavern
AI Assistants
The power-user LLM frontend that unifies dozens of AI backends with a rich scripting engine, immersive Visual Novel mode, and a thriving extension ecosystem.
WickedEngine
Game Development
Open-source C++ 3D engine with DirectX 12, Vulkan, and Metal — featuring real-time ray tracing, PBR, ECS, Lua scripting, and cross-platform support for games and graphics applications.
AnythingLLM
AI Assistants · Automation · Developer Tools
The all-in-one AI platform for private document chat, no-code agents, and local LLMs with zero setup friction.
Flagsmith
Ab Testing Experimentation · Developer Tools · Devops
Open-source feature flagging, remote config, and A/B/multivariate testing platform for web, mobile, and server-side apps — self-host or use the hosted SaaS.
Fleetbase
Logistics
Modular open-source logistics and supply chain operating system
Healthchecks
Devops · Monitoring
Open-source cron job and background task monitoring that alerts you when your scheduled jobs go silent.
homepage
Monitoring · Productivity
A fast, fully static, and secure self-hosted startpage with Docker service discovery and integrations for over 160 services.
Krayin CRM
CRM · Ecommerce
Free, open-source Laravel & Vue.js CRM for SMEs and enterprises to manage the complete customer lifecycle.
Manticore Search
Search
An open-source, C++ search database positioned as a faster, lighter alternative to Elasticsearch — supporting full-text, SQL, JSON, and vector/embedding search over a MySQL-compatible protocol.
Open WebUI
AI Agents · AI Assistants
The extensible, privacy-first AI platform that runs Ollama, OpenAI, and any LLM backend behind a polished, feature-packed web interface.
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.
SuperTokens
Authentication · Security
Open-source authentication platform you self-host, giving you complete control over user data with zero vendor lock-in.
Svix
Automation · Developer Tools
Open source, self-hostable webhook infrastructure that handles delivery, retries, HMAC signing, and multi-tenant event management so you never have to build a webhooks system from scratch.
Twake Drive
Collaboration · File Storage
Open-source, self-hosted file manager with collaborative drives, AI-powered summarization, and OnlyOffice document editing for teams who want full data sovereignty.
Uptime Kuma
Monitoring
Self-hosted monitoring for every service you run — 23 monitor types, 95 notification channels, live dashboards, and public status pages with no vendor lock-in.
Windmill
Automation · Developer Tools
Turn scripts into webhooks, workflows, and auto-generated UIs — the fastest self-hostable workflow engine, 13x faster than Airflow.
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.
ChartBrew
Analytics · Databases
Open-source reporting platform to build live dashboards from SQL, NoSQL, APIs, and SaaS tools with an AI assistant that creates charts from natural language.
Dragonfly
Databases · Developer Tools · Devops
A modern Redis and Memcached replacement engineered for multi-core servers — delivering 25x more throughput, better cache hit rates, and up to 80% lower memory consumption with full API compatibility.