Directory

All Open Source Apps

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

746 apps
Updated continuously
Java
100%
Apache 2.0

CrateDB

Analytics · Databases

4,435

Distributed SQL database for real-time analytics at scale

View details
96
Repo Health
76
Technical
77
Dependency
Built with
Java 100%
Updated 1 weeks ago
C++
68%
Apache 2.0

ClickHouse

Analytics · Data Engineering · Databases

49,890

Open-source column-oriented database that delivers real-time analytical queries on petabyte-scale data with millisecond latency.

View details
95
Repo Health
90
Technical
68
Dependency
Built with
C++ 68%
Python 13%
Updated 1 weeks ago
Java
78%
GPL 3.0

DataEase

AI Assistants · Analytics · Data Engineering

24,431

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 78%
Vue 22%
Updated 1 weeks ago
Java
58%
Apache 2.0

Kestra

Automation · Data Engineering · Devops

28,115

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

View details
94
Repo Health
81
Technical
72
Dependency
Built with
Java 58%
TypeScript 25%
Vue 15%
Updated 1 weeks ago
Rust
54%
GPL 3.0

openfootmanager

Game Development

1,118

A free and open source football management simulation game built with Rust and Tauri, inspired by Football Manager.

View details
94
Repo Health
79
Technical
74
Dependency
Built with
Rust 54%
TypeScript 45%
Updated 1 weeks ago
Rust
98%
Other

Zed

Code Editors · Collaboration · Developer Tools

90,242

High-performance, multiplayer code editor built in Rust by the creators of Atom and Tree-sitter, with native AI integration and real-time collaboration.

View details
94
Repo Health
88
Technical
72
Dependency
Built with
Rust 98%
Updated 1 weeks ago
Rust
95%
Other

Databend

Data Engineering · Databases

9,442

Open-source enterprise data warehouse unifying analytics, vector search, full-text search, and AI agent orchestration in a single Rust-built engine on S3.

View details
93
Repo Health
84
Technical
77
Dependency
Built with
Rust 95%
Updated 1 weeks ago
C++
87%
MIT

Godot Engine

Design Tools · Developer Tools · Game Development

117,159

Free, MIT-licensed 2D and 3D game engine with one-click multi-platform export and no royalties.

View details
93
Repo Health
91
Technical
0
Dependency
Built with
C++ 87%
Updated 1 weeks ago
Rust
70%
AGPL 3.0

RustDesk

Networking

123,529

Open-source, self-hosted remote desktop built in Rust — your data, your infrastructure, no third-party cloud.

View details
93
Repo Health
84
Technical
71
Dependency
Built with
Rust 70%
Dart 22%
Updated 1 weeks ago
Rust
67%
MIT

Bun

Developer Tools

95,960

An all-in-one JavaScript and TypeScript toolkit — one Rust-and-JavaScriptCore binary that replaces Node.js, npm, a bundler, and a test runner with faster equivalents.

View details
92
Repo Health
91
Technical
64
Dependency
Built with
Rust 67%
C++ 19%
Updated 1 weeks ago
Java
96%
Apache 2.0

Copybara

Developer Tools

3,840

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
92
Repo Health
72
Technical
0
Dependency
Built with
Java 96%
Updated 1 weeks ago
C++
36%
Other

Defold

Game Development

6,303

Free, source-available game engine for 2D and 3D games on desktop, mobile, web, and consoles — no royalties, no licensing fees, full source access.

View details
92
Repo Health
83
Technical
0
Dependency
Built with
C++ 36%
C 25%
Clojure 18%
Updated 1 weeks ago
Rust
97%
GPL 3.0

Pake

Developer Tools

61,422

Turn any webpage into a lightweight native desktop app with one command — built on Rust/Tauri instead of Electron, producing installers nearly 20x smaller (typically under 10MB) for macOS, Windows, and Linux.

View details
92
Repo Health
75
Technical
71
Dependency
Built with
Rust 97%
Updated 1 weeks ago
Rust
90%
Apache 2.0

Qdrant

AI Development · Databases · Search

34,564

Open-source vector database and search engine built in Rust for production-grade AI applications — from semantic search to RAG pipelines and recommendation systems.

View details
92
Repo Health
87
Technical
65
Dependency
Built with
Rust 90%
Updated 1 weeks ago
C++
48%
MIT

WickedEngine

Game Development

7,228

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.

View details
92
Repo Health
72
Technical
0
Dependency
Built with
C++ 48%
C 48%
Updated 1 weeks ago
C++
77%
GPL 3.0

Manticore Search

Search

12,000

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.

View details
91
Repo Health
70
Technical
78
Dependency
Built with
C++ 77%
Updated 1 weeks ago
Java
92%
Apache 2.0

QuestDB

Analytics · Databases

17,321

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.

View details
91
Repo Health
86
Technical
68
Dependency
Built with
Java 92%
Updated 1 weeks ago
Java
97%
Other

SuperTokens

Authentication · Security

15,299

Open-source authentication platform you self-host, giving you complete control over user data with zero vendor lock-in.

View details
91
Repo Health
76
Technical
72
Dependency
Built with
Java 97%
Updated 1 weeks ago
Rust
47%
MIT

Svix

Automation · Developer Tools

3,404

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.

View details
91
Repo Health
77
Technical
67
Dependency
Built with
Rust 47%
C# 15%
Updated 1 weeks ago
Rust
31%
Other

Windmill

Automation · Developer Tools

17,927

Turn scripts into webhooks, workflows, and auto-generated UIs — the fastest self-hostable workflow engine, 13x faster than Airflow.

View details
91
Repo Health
82
Technical
65
Dependency
Built with
Rust 31%
TypeScript 23%
Svelte 22%
Updated 1 weeks ago
C++
74%
Other

Dragonfly

Databases · Developer Tools · Devops

31,519

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.

View details
90
Repo Health
9
Technical
71
Dependency
Built with
C++ 74%
Python 16%
Updated 1 weeks ago
Rust
40%
Apache 2.0

LanceDB

AI Development · Databases

11,423

Open-source, embedded vector database built on the Lance columnar format for fast multimodal search across billions of vectors, backed by Y Combinator (W23).

View details
90
Repo Health
86
Technical
72
Dependency
Built with
Rust 40%
HTML 26%
Python 25%
Updated 1 weeks ago
Rust
100%
Other

Meilisearch

Search

59,291

Lightning-fast hybrid search engine with AI-powered semantic and full-text retrieval for modern applications.

View details
90
Repo Health
88
Technical
68
Dependency
Built with
Rust 100%
Updated 1 weeks ago
C++
66%
Other

Memgraph

AI Development · Databases

4,561

High-performance in-memory graph database for AI context and real-time analytics

View details
90
Repo Health
79
Technical
69
Dependency
Built with
C++ 66%
Python 18%
Updated 1 weeks 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