Directory

All Open Source Apps

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

748 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 4 days ago
Go
95%
Apache 2.0

TiDB

AI Development · Databases

40,595

AI-Native Distributed SQL Database for Agentic Workloads

View details
97
Repo Health
66
Technical
67
Dependency
Built with
Go 95%
Updated 3 days ago
Java
100%
Apache 2.0

CrateDB

Analytics · Databases

4,441

Distributed SQL database for real-time analytics at scale

View details
96
Repo Health
76
Technical
79
Dependency
Built with
Java 100%
Updated 4 days ago
Java
93%
Apache 2.0

QuestDB

Analytics · Databases

17,360

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
67
Dependency
Built with
Java 93%
Updated 3 days ago
Go
97%
BSD 3

Weaviate

Databases · Search

16,854

Open-source vector database combining semantic search, hybrid queries, RAG, and image search in a single cloud-native system built for production scale.

View details
91
Repo Health
85
Technical
67
Dependency
Built with
Go 97%
Updated 3 days ago
JavaScript
99%
Other

ChartBrew

Analytics · Databases

4,063

Open-source reporting platform to build live dashboards from SQL, NoSQL, APIs, and SaaS tools with an AI assistant that creates charts from natural language.

View details
90
Repo Health
83
Technical
64
Dependency
Built with
JavaScript 99%
Updated 1 weeks ago
Go
80%
Apache 2.0

Dolt

Data Engineering · Databases · Developer Tools

24,532

The SQL database you can branch, merge, diff, and clone — Git for your data, MySQL-compatible and ready for multi-agent AI workflows.

View details
90
Repo Health
9
Technical
65
Dependency
Built with
Go 80%
Shell 19%
Updated 6 days ago
Go
69%
MIT

Ollama

AI Development · Developer Tools

181,830

Run Llama, Gemma, DeepSeek, and other open LLMs on your own machine with one command and an OpenAI-compatible API.

View details
90
Repo Health
85
Technical
67
Dependency
Built with
Go 69%
C 22%
Updated 4 days ago
Go
69%
MIT

PocketBase

Authentication · Databases · Ecommerce

61,177

Open Source realtime backend in 1 file — embedded SQLite, auth, file storage, and admin UI as a single Go binary.

View details
89
Repo Health
87
Technical
77
Dependency
Built with
Go 69%
JavaScript 25%
Updated 5 days ago
Go
100%
Apache 2.0

SpiceDB

Authentication · Databases · Security

7,101

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.

View details
89
Repo Health
89
Technical
67
Dependency
Built with
Go 100%
Updated 1 weeks ago
Go
86%
MIT

Hatchet

AI Development · Automation · Developer Tools

8,014

A Postgres-backed orchestration engine for background tasks, AI agents, and durable workflows that replaces Redis queues and multi-datastore durable execution platforms with a single self-hostable service.

View details
88
Repo Health
83
Technical
67
Dependency
Built with
Go 86%
Updated 4 days ago
Go
81%
AGPL 3.0

PeerDB

Data Engineering · Databases

3,288

Postgres-native ETL that streams change data capture in real time to Snowflake, BigQuery, ClickHouse, S3, and Kafka — up to 10x faster than general-purpose pipelines, managed through a familiar Postgres SQL interface.

View details
88
Repo Health
76
Technical
66
Dependency
Built with
Go 81%
TypeScript 12%
Updated 3 days ago
Go
95%
MIT

Formance Ledger

Databases · Developer Tools · Invoicing Finance

1,407

The programmable open source core ledger for fintech — build money-moving applications with atomic multi-posting transactions, account-based modeling, and Numscript, a built-in DSL for financial logic.

View details
87
Repo Health
8
Technical
68
Dependency
Built with
Go 95%
Updated 5 days ago
Go
56%
Other

Multica

AI Assistants · AI Development

51,481

Turn coding agents into real teammates — assign issues, track progress, and compound reusable skills across a vendor-neutral, self-hosted platform.

View details
87
Repo Health
83
Technical
67
Dependency
Built with
Go 56%
TypeScript 38%
Updated 4 days ago
Go
84%
AGPL 3.0

Beta9

AI Development · Automation · Data Engineering

1,794

Run AI workloads at scale with a Pythonic serverless runtime that handles GPU inference, background jobs, and sandboxes with zero infrastructure overhead.

View details
85
Repo Health
78
Technical
66
Dependency
Built with
Go 84%
Python 15%
Updated 4 days ago
Go
59%
Apache 2.0

Cog

AI Development · Developer Tools · Devops

9,484

An open-source CLI that packages machine learning models into standard, production-ready Docker containers — no Dockerfile wrangling, no CUDA version hell.

View details
85
Repo Health
88
Technical
69
Dependency
Built with
Go 59%
Rust 17%
HTML 13%
Updated 6 days ago
JavaScript
94%
MIT

Another Redis Desktop Manager

Databases · Developer Tools

34,787

Fast, stable Redis GUI with cluster, SSH, and massive key support

View details
81
Repo Health
56
Technical
67
Dependency
Built with
JavaScript 94%
Updated 1 months ago
Go
93%
MIT

NornicDB

AI Development · AI Memory · Databases

887

A single graph+vector+temporal database for AI workloads — Neo4j-compatible, sub-millisecond hybrid search, and built-in memory decay.

View details
80
Repo Health
82
Technical
71
Dependency
Built with
Go 93%
Updated 3 days ago
JavaScript
99%
AGPL 3.0

drawDB

Databases

39,723

Design database schemas visually in your browser and export executable SQL for any major database — no account required.

View details
77
Repo Health
70
Technical
73
Dependency
Built with
JavaScript 99%
Updated 5 days ago
Java
76%
Apache 2.0

Nubase

AI Development · Low Code Platforms

624

Turn AI-written code into real apps — an open-source, self-hostable backend with Database, Auth, Storage, Memory, Functions, Assets, AI Gateway, and cron built for AI coding agents.

View details
68
Repo Health
76
Technical
74
Dependency
Built with
Java 76%
TypeScript 21%
Updated 1 months ago
Go
91%
Apache 2.0

FerretDB

Databases

11,082

An open-source MongoDB alternative that translates wire protocol queries to SQL and stores documents in PostgreSQL

View details
55
Repo Health
86
Technical
70
Dependency
Built with
Go 91%
Updated 3 months ago
Ruby
70%
AGPL 3.0

Maybe

Authentication · Databases · Invoicing Finance

54,263

Self-hostable personal finance app that gives you full ownership of your financial data with a clean, minimal Rails-powered interface.

View details
52
Repo Health
82
Technical
0
Dependency
Built with
Ruby 70%
HTML 23%
Updated 1 years ago
Go
86%
Apache 2.0

fabrica

AI Agents · AI Development · Devops

45

Ephemeral, VM-isolated "Agent Computers" for AI agents — a Kubernetes-native REST API backed by Kata Containers microVMs.

View details
35
Repo Health
75
Technical
81
Dependency
Built with
Go 86%
Updated 2 months 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