All Open Source Apps
Every app scored on repo health, technical quality, and dependency risk — before you install anything.
Category
Sort:Health Score
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.
Healthchecks
Devops · Monitoring
Open-source cron job and background task monitoring that alerts you when your scheduled jobs go silent.
kopia
File Storage
Fast, encrypted, deduplicated backups to any cloud or local storage with full client-side control.
memos
Note Taking
Open-source, self-hosted note-taking built for quick capture — Markdown-native, lightweight, and fully yours.
Nakama
Developer Tools · Game Development
Open-source game backend server with built-in multiplayer, matchmaking, leaderboards, chat, authentication, and storage — deploy anywhere via Docker or binary.
Navidrome
File Storage
Run your own personal Spotify — stream your entire music collection from any device, anywhere, forever.
Okteto
Developer Tools · Devops
Develop applications directly inside your Kubernetes cluster with real-time file sync and instant hot-reload — no more docker build/redeploy cycles.
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.
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.
Spree Commerce
CRM · Ecommerce · Marketing
Open-source headless eCommerce platform with a REST API, TypeScript SDK, and Next.js storefront for B2B, cross-border, and marketplace commerce — no vendor lock-in, no platform fees.
SuperTokens
Authentication · Security
Open-source authentication platform you self-host, giving you complete control over user data with zero vendor lock-in.
Unkey
Developer Tools
An open-source developer platform for API infrastructure — issue and verify API keys, enforce global rate limits, route traffic through a gateway, and get per-key analytics and audit logs.
Weaviate
Databases · Search
Open-source vector database combining semantic search, hybrid queries, RAG, and image search in a single cloud-native system built for production scale.
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.
Flipt
Developer Tools · Devops
Git-native feature flag platform that stores, versions, and deploys feature toggles directly in your own Git repositories with no external database required.
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.
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.
Ollama
AI Development · Developer Tools
Run Llama, Gemma, DeepSeek, and other open LLMs on your own machine with one command and an OpenAI-compatible API.
Arize Phoenix
Analytics · Devops · Monitoring
Open-source AI observability platform for tracing, evaluating, and debugging LLM applications with built-in intelligence and MCP support.
Polar
Developer Tools · Ecommerce · Invoicing Finance
Open source payments infrastructure that turns software into a business — subscriptions, usage-based billing, digital products, and merchant-of-record compliance in one platform.
SpiceDB
Authentication · Databases · Security
An open source, Google Zanzibar-inspired authorization database that models permissions as relationships and evaluates fine-grained access checks at massive scale with single-digit millisecond latency.
Stirling PDF
Digital Signiture · Productivity
The open-source PDF platform you can run anywhere — edit, convert, sign, and automate PDFs without sending files to external servers.