Directory

All Open Source Apps

Every app scored on repo health, technical quality, and dependency risk — before you install anything.

745 apps
Updated continuously
JavaScript
98%
Apache 2.0

Parse Server

Databases · Developer Tools

21,405

Self-hosted Backend-as-a-Service for Node.js with REST, GraphQL, real-time Live Query, cloud code, and pluggable adapters for any infrastructure.

View details
98
Repo Health
81
Technical
77
Dependency
Built with
JavaScript 98%
Updated yesterday
JavaScript
93%
Apache 2.0

swagger-ui

Developer Tools

29,026

Transform OpenAPI specifications into interactive, browser-based API documentation that developers and consumers can explore and test live.

View details
97
Repo Health
83
Technical
65
Dependency
Built with
JavaScript 93%
Updated 3 days ago
Python
89%
Apache 2.0

Apache Airflow

Data Engineering

46,995

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.

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96
Repo Health
89
Technical
64
Dependency
Built with
Python 89%
Updated today
Python
47%
Other

Airbyte

Data Engineering · Developer Tools

22,143

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

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95
Repo Health
80
Technical
67
Dependency
Built with
Python 47%
Kotlin 43%
Updated today
Python
57%
Other

Sentry

Analytics · Developer Tools · Monitoring

44,862

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

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95
Repo Health
80
Technical
69
Dependency
Built with
Python 57%
TypeScript 41%
Updated today
Python
91%
GPL 3.0

Weblate

Developer Tools

6,094

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

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95
Repo Health
86
Technical
67
Dependency
Built with
Python 91%
Updated today
PHP
93%
BSD 3

Appwrite

Authentication · Databases · Developer Tools

57,496

Open-source backend platform with Auth, Databases, Storage, Functions, Messaging, Realtime, and Sites — deploy via Docker or use Appwrite Cloud.

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94
Repo Health
81
Technical
65
Dependency
Built with
PHP 93%
Updated yesterday
JavaScript
65%
Other

GDevelop

Design Tools · Developer Tools · Game Development

26,937

No-code, open-source game engine for building 2D, 3D and multiplayer games — publish to iOS, Android, Steam and the web.

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93
Repo Health
82
Technical
61
Dependency
Built with
JavaScript 65%
C++ 23%
TypeScript 11%
Updated today
Python
55%
Other

authentik

Authentication · Security

25,758

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.

View details
92
Repo Health
81
Technical
66
Dependency
Built with
Python 55%
TypeScript 36%
Updated today
Python
82%
MIT

LiteLLM

AI Development · Developer Tools

59,745

Open source AI gateway and Python SDK that gives you one OpenAI-compatible interface to call 100+ LLM providers, with built-in routing, cost tracking, guardrails, and virtual keys.

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92
Repo Health
81
Technical
69
Dependency
Built with
Python 82%
TypeScript 12%
Updated today
Ruby
62%
MIT

OnetimeSecret

Security

2,947

Generate self-destructing single-use links to share passwords and sensitive data without leaving traces in inboxes or chat logs.

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92
Repo Health
81
Technical
72
Dependency
Built with
Ruby 62%
TypeScript 25%
Updated today
Python
55%
Other

PostHog

Ab Testing Experimentation · Analytics · Developer Tools

39,975

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.

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92
Repo Health
80
Technical
65
Dependency
Built with
Python 55%
TypeScript 36%
Updated today
Python
46%
Other

Redash

Analytics · Data Engineering

28,817

Redash lets anyone connect to 35+ SQL and NoSQL data sources, write a query in the browser, and turn the result into a shared dashboard — no separate BI suite required.

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92
Repo Health
74
Technical
60
Dependency
Built with
Python 46%
JavaScript 30%
TypeScript 17%
Updated today
JavaScript
95%
MIT

AnythingLLM

AI Assistants · Automation · Developer Tools

66,533

The all-in-one AI platform for private document chat, no-code agents, and local LLMs with zero setup friction.

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90
Repo Health
78
Technical
64
Dependency
Built with
JavaScript 95%
Updated 2 days ago
Python
63%
BSD 3

Flagsmith

Ab Testing Experimentation · Developer Tools · Devops

6,577

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.

View details
90
Repo Health
82
Technical
63
Dependency
Built with
Python 63%
TypeScript 31%
Updated 2 days ago
PHP
100%
AGPL 3.0

Passbolt API

Password Manager · Security

6,141

Self-hosted, end-to-end encrypted password manager API built for teams who demand full ownership of their credentials.

View details
90
Repo Health
80
Technical
69
Dependency
Built with
PHP 100%
Updated 1 weeks ago
Python
65%
Apache 2.0

Polar

Developer Tools · Ecommerce · Invoicing Finance

10,293

Open source payments infrastructure that turns software into a business — subscriptions, usage-based billing, digital products, and merchant-of-record compliance in one platform.

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90
Repo Health
82
Technical
66
Dependency
Built with
Python 65%
TypeScript 28%
Updated today
Python
65%
Apache 2.0

WrenAI

AI Agents · Analytics · Data Engineering

17,763

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.

View details
90
Repo Health
91
Technical
69
Dependency
Built with
Python 65%
Rust 32%
Updated 3 days ago
Python
62%
Apache 2.0

marimo

Data Engineering · Developer Tools

22,918

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.

View details
89
Repo Health
91
Technical
65
Dependency
Built with
Python 62%
TypeScript 37%
Updated yesterday
Python
70%
AGPL 3.0

Tracecat

AI Agents · Automation · Security

3,816

Open-source agentic security automation platform that runs AI agents and durable workflows at scale with sandboxed execution.

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89
Repo Health
88
Technical
66
Dependency
Built with
Python 70%
TypeScript 28%
Updated yesterday
Ruby
67%
Other

GitLab

Developer Tools · Devops

24,552

The complete DevOps platform that unifies Git hosting, CI/CD, issue tracking, and security scanning into a single self-hostable application.

View details
87
Repo Health
86
Technical
67
Dependency
Built with
Ruby 67%
JavaScript 20%
Updated today
Python
45%
MIT

Maltrail

Monitoring · Security

8,609

Detect malicious network traffic using 47+ live threat feeds, heuristics, and a fat-client reporting dashboard — no commercial stack required.

View details
87
Repo Health
59
Technical
100
Dependency
Built with
Python 45%
Rust 39%
Updated yesterday
Python
94%
BSD 3

skrub

Developer Tools

1,653

Turn messy real-world dataframes into machine learning features — no manual wrangling required.

View details
86
Repo Health
84
Technical
80
Dependency
Built with
Python 94%
Updated 4 days ago
Python
82%
Apache 2.0

headroom

AI Development · Developer Tools

73,966

Compress everything your AI agent reads — tool outputs, logs, RAG chunks, and files — before it reaches the LLM, achieving 60–95% fewer tokens with the same answers.

View details
85
Repo Health
86
Technical
69
Dependency
Built with
Python 82%
Rust 12%
Updated yesterday

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