Directory

All Open Source Apps

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

746 apps
Updated continuously
Python
58%
Apache 2.0

MLflow

AI Development · Monitoring

28,154

The open source AI engineering platform for debugging, evaluating, monitoring, and optimizing production LLMs and agents at scale.

View details
97
Repo Health
86
Technical
67
Dependency
Built with
Python 58%
TypeScript 33%
Updated today
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.

View details
96
Repo Health
89
Technical
64
Dependency
Built with
Python 89%
Updated yesterday
Java
100%
Apache 2.0

CrateDB

Analytics · Databases

4,440

Distributed SQL database for real-time analytics at scale

View details
96
Repo Health
76
Technical
79
Dependency
Built with
Java 100%
Updated yesterday
Python
79%
GPL 3.0

ERPNext

ERP · Invoicing Finance

39,602

100% free, open-source ERP unifying accounting, manufacturing, inventory, CRM, HR, and POS in a single self-hostable platform.

View details
96
Repo Health
77
Technical
74
Dependency
Built with
Python 79%
JavaScript 14%
Updated today
Python
57%
Apache 2.0

Zulip

Team Chat

25,962

Topic-based team chat that brings the structure of email threads to real-time messaging, so distributed teams never lose context across hundreds of concurrent conversations.

View details
96
Repo Health
86
Technical
61
Dependency
Built with
Python 57%
TypeScript 19%
JavaScript 10%
Updated yesterday
Python
47%
Other

Airbyte

Data Engineering · Developer Tools

22,142

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

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

Sentry

Analytics · Developer Tools · Monitoring

44,861

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

View details
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.

View details
95
Repo Health
86
Technical
67
Dependency
Built with
Python 91%
Updated today
Python
100%
Apache 2.0

ClearML

Automation · Devops

6,892

Auto-magical MLOps platform that tracks experiments, versions data, orchestrates pipelines, and serves models with just two lines of code.

View details
94
Repo Health
79
Technical
68
Dependency
Built with
Python 100%
Updated 5 days ago
Java
70%
GPL 3.0

DataEase

AI Assistants · Analytics · Data Engineering

24,558

Open-source BI tool with drag-and-drop dashboards, 20+ data source connectors, and AI-powered natural language queries — a self-hosted alternative to Tableau.

View details
94
Repo Health
71
Technical
65
Dependency
Built with
Java 70%
Vue 29%
Updated today
Python
66%
Other

AutoGPT

AI Assistants · Automation · Productivity

187,594

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

View details
93
Repo Health
78
Technical
66
Dependency
Built with
Python 66%
TypeScript 33%
Updated today
Python
74%
GPL 3.0

Frappe HR

Human Resources

8,831

Complete open-source HRMS for employee lifecycle, attendance, payroll, and performance — built on Frappe Framework with a mobile PWA.

View details
93
Repo Health
70
Technical
79
Dependency
Built with
Python 74%
JavaScript 15%
Updated yesterday
Java
58%
Apache 2.0

Kestra

Automation · Data Engineering · Devops

28,387

Event-driven orchestration platform for data, AI, and infrastructure workflows — define everything in YAML, run anywhere at scale.

View details
93
Repo Health
81
Technical
72
Dependency
Built with
Java 58%
TypeScript 26%
Vue 15%
Updated 3 days ago
Python
100%
Apache 2.0

Agno

AI Development · Automation · Devops

42,358

Build, run, and manage agent platforms with a full production stack — SDK, runtime, and control plane included.

View details
92
Repo Health
87
Technical
66
Dependency
Built with
Python 100%
Updated 3 days ago
Python
55%
Other

authentik

Authentication · Security

25,757

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
100%
GPL 3.0

ComfyUI

AI Design Tools · AI Development

135,227

The most powerful node-based AI workflow engine for creating images, video, 3D models, and audio with full control over every generation step.

View details
92
Repo Health
81
Technical
75
Dependency
Built with
Python 100%
Updated yesterday
Python
83%
MIT

LiteLLM

AI Development · Developer Tools

59,740

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.

View details
92
Repo Health
81
Technical
69
Dependency
Built with
Python 83%
TypeScript 12%
Updated today
Python
45%
GPL 3.0

MaxKB

AI Development · Knowledge Management

22,880

Build enterprise-grade AI agents with RAG, workflows & multi-modal support

View details
92
Repo Health
68
Technical
66
Dependency
Built with
Python 45%
Vue 37%
TypeScript 17%
Updated today
Python
64%
Other

Onyx

AI Agents · AI Assistants · Knowledge Management

32,262

Self-hostable AI platform with agentic RAG, 50+ connectors, deep research, code execution, and support for every major LLM provider.

View details
92
Repo Health
83
Technical
68
Dependency
Built with
Python 64%
TypeScript 26%
Updated yesterday
Python
55%
Other

PostHog

Ab Testing Experimentation · Analytics · Developer Tools

39,974

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.

View details
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.

View details
92
Repo Health
74
Technical
60
Dependency
Built with
Python 46%
JavaScript 30%
TypeScript 17%
Updated yesterday
Java
46%
Other

Stirling PDF

Digital Signiture · Productivity

93,140

The open-source PDF platform you can run anywhere — edit, convert, sign, and automate PDFs without sending files to external servers.

View details
92
Repo Health
86
Technical
71
Dependency
Built with
Java 46%
TypeScript 45%
Updated yesterday
Python
79%
Apache 2.0

changedetection.io

Monitoring

34,604

Self-hosted website change detection with AI-powered smart alerts, browser automation, price tracking, and 85+ notification channels.

View details
91
Repo Health
80
Technical
68
Dependency
Built with
Python 79%
Updated 3 days ago
Java
96%
Apache 2.0

Copybara

Developer Tools

3,857

Google's internal tool, open-sourced, for transforming and moving code between repositories — keeping a confidential and public repo in sync, importing external contributions into an authoritative repo, or migrating code once.

View details
91
Repo Health
72
Technical
0
Dependency
Built with
Java 96%
Updated 3 days ago

Join founders buildingwith open source

Opinionated takes, migration guides, cost-saving tips, and insights from the open source ecosystem.

Subscribe on Substack
Join 750+ subscribers