Directory

All Open Source Apps

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

745 apps
Updated continuously
Python
74%
Apache 2.0

OpenKB

Knowledge Management

4,579

An open-source CLI that compiles raw documents into a structured, interlinked wiki-style knowledge base using LLMs — powered by vectorless, reasoning-based retrieval (PageIndex) instead of a vector database.

View details
68
Repo Health
72
Technical
77
Dependency
Built with
Python 74%
TypeScript 23%
Updated 2 months ago
TypeScript
50%
MIT

Opslane

AI Agents · Developer Tools

48

Opslane's /verify plugin turns a pasted PM ticket into a browser-driven acceptance-criteria check inside Claude Code, screenshotting and video-recording every pass or fail before you push.

View details
68
Repo Health
46
Technical
0
Dependency
Built with
TypeScript 50%
Go 40%
Updated 5 days ago
TypeScript
98%
Other

Orama

Developer Tools · Search

10,565

A complete, embeddable search engine and RAG pipeline running in browsers, servers, and edge networks with full-text, vector, and hybrid search in under 2KB.

View details
68
Repo Health
83
Technical
64
Dependency
Built with
TypeScript 98%
Updated 2 weeks ago
JavaScript
90%
Other

CodeSandbox

Code Editors · Developer Tools

13,650

Instantly ready browser-based IDE that runs full npm dependency resolution and transpilation entirely client-side, with no server needed.

View details
67
Repo Health
76
Technical
62
Dependency
Built with
JavaScript 90%
Updated 3 weeks ago
Python
58%
MIT

Docglow

Data Engineering

147

A next-generation documentation site generator for dbt Core projects — lineage explorer, health scoring, and full-text search for teams without access to dbt Cloud's built-in docs features.

View details
67
Repo Health
65
Technical
82
Dependency
Built with
Python 58%
TypeScript 42%
Updated 2 days ago
Python
68%
BSD 3

Fortress

Automation · Browser · Developer Tools

664

A stealth Chromium engine that corrects the browser fingerprint inside the C++ engine itself, so scrapers and browser agents stop getting blocked, with a 29-tool MCP server for AI agents.

View details
67
Repo Health
78
Technical
0
Dependency
Built with
Python 68%
JavaScript 12%
Shell 12%
Updated 2 months ago
TypeScript
71%
Other

highlight.io

Analytics · Developer Tools · Monitoring

9,378

Open-source full-stack monitoring that unifies session replay, error tracking, logging, and distributed tracing so you can stop context-switching between tools.

View details
67
Repo Health
78
Technical
65
Dependency
Built with
TypeScript 71%
Go 16%
Updated 1 months ago
TypeScript
86%
MIT

Agents Observe

Developer Tools

684

A real-time, fully local observability dashboard for Claude Code and Codex agent sessions — filtering, search, session replay, and token/cost breakdowns via an auto-starting MCP server.

View details
66
Repo Health
67
Technical
77
Dependency
Built with
TypeScript 86%
JavaScript 10%
Updated 3 weeks ago
TypeScript
84%
Apache 2.0

ktx

AI Development · Analytics · Data Engineering

1,603

ktx builds a self-improving context layer over your data warehouse so AI agents like Claude Code and Codex query it with approved metric definitions instead of reinventing SQL logic from scratch.

View details
66
Repo Health
85
Technical
72
Dependency
Built with
TypeScript 84%
Updated 2 weeks ago
TypeScript
93%
MIT

OpenReel Video

Video Editors

5,211

A browser-based, GPU-accelerated video editor with multi-track timelines, color grading, and 4K export — no uploads, no installs, no watermarks.

View details
66
Repo Health
80
Technical
74
Dependency
Built with
TypeScript 93%
Updated 1 months ago
Python
59%
Apache 2.0

argilla

AI Development · Data Engineering

5,125

Collaborate on high-quality AI training data with a self-hosted annotation platform built for LLMs, NLP, and multimodal models.

View details
65
Repo Health
81
Technical
61
Dependency
Built with
Python 59%
Jupyter Notebook 21%
Updated 1 weeks ago
TypeScript
88%
MIT

Drawnix

Design Tools · Productivity

14,848

All-in-one open-source whiteboard combining mind maps, flowcharts, and freehand drawing on a single infinite canvas.

View details
65
Repo Health
69
Technical
79
Dependency
Built with
TypeScript 88%
Updated 2 weeks ago
TypeScript
76%
MIT

faved

Bookmarks Archiving · Knowledge Management · Note Taking

1,318

A private, self-hosted bookmark manager built for large collections—nested tags, PWA support, and zero cloud dependency.

View details
65
Repo Health
60
Technical
78
Dependency
Built with
TypeScript 76%
PHP 22%
Updated 1 months ago
Python
83%
MIT

Gemma Multimodal Fine-Tuner

AI Development

1,503

An Apple-Silicon-native LoRA fine-tuning tool for Gemma on text, image, and audio data — with a wizard CLI, live browser-based training visualizer, and streaming from GCS/BigQuery for datasets too large for local disk.

View details
65
Repo Health
68
Technical
72
Dependency
Built with
Python 83%
Updated 2 days ago
TypeScript
99%
Apache 2.0

Onlook

AI Design Tools · Design Tools

26,820

An open-source, AI-first visual editor that lets designers and developers build, style, and deploy React apps directly in code — no handoff required.

View details
65
Repo Health
80
Technical
64
Dependency
Built with
TypeScript 99%
Updated 1 months ago
Python
99%
GPL 3.0

tilf

Design Tools · Game Development

472

Single-executable pixel art editor that starts instantly with no accounts, no setup, and no internet required.

View details
65
Repo Health
44
Technical
0
Dependency
Built with
Python 99%
Updated 2 months ago
Python
99%
Apache 2.0

Rasa Open Source

AI Assistants · AI Development · Voice AI

21,332

Rasa Open Source is a Python machine learning framework for building contextual, multi-turn chatbots and voice assistants that understand natural language and maintain conversation state.

View details
64
Repo Health
78
Technical
63
Dependency
Built with
Python 99%
Updated 2 months ago
TypeScript
98%
Apache 2.0

superlog

AI Agents · Monitoring

1,455

Open-source agentic observability that ingests OpenTelemetry signals, groups them into incidents, and deploys AI agents to investigate and fix your production bugs automatically.

View details
64
Repo Health
73
Technical
73
Dependency
Built with
TypeScript 98%
Updated 4 days ago
Python
51%
AGPL 3.0

Khoj

AI Assistants · Knowledge Management · Productivity

37,526

A self-hostable AI second brain that chats with your documents, searches the web, builds custom agents, and runs entirely on your own LLM.

View details
63
Repo Health
82
Technical
66
Dependency
Built with
Python 51%
TypeScript 36%
Updated 1 months ago
Python
56%
MIT

Foxel

File Storage

1,063

Self-hosted private cloud storage with AI semantic search and a pluggable multi-backend file management system.

View details
62
Repo Health
68
Technical
77
Dependency
Built with
Python 56%
TypeScript 41%
Updated 1 weeks ago
TypeScript
96%
Other

Refly

AI Development · Automation · No Code Platforms

7,534

Build deterministic, versioned agent skills from natural language—run them anywhere from Claude Code to Slack.

View details
62
Repo Health
76
Technical
63
Dependency
Built with
TypeScript 96%
Updated 2 months ago
Python
94%
Apache 2.0

SWIRL

Data Engineering · Databases · Search

3,047

Federated AI search and RAG across 100+ enterprise sources—no data extraction, no vector database required.

View details
62
Repo Health
83
Technical
65
Dependency
Built with
Python 94%
Updated 2 days ago
TypeScript
96%
Apache 2.0

Pezzo

AI Development · Monitoring

3,275

Open-source LLMOps platform for prompt management, AI observability, intelligent caching, and real-time cost tracking across LLM providers.

View details
61
Repo Health
75
Technical
66
Dependency
Built with
TypeScript 96%
Updated 1 months ago
TypeScript
63%
AGPL 3.0

undb

Databases · No Code Platforms

2,978

Self-hosted no-code database and BaaS that lets you manage structured data visually with multi-database support, formula fields, and auto-generated OpenAPI endpoints.

View details
61
Repo Health
66
Technical
65
Dependency
Built with
TypeScript 63%
Svelte 35%
Updated 6 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