Open source. Open possibilities.

Rainfrog is a lightweight terminal-based database tool with vim-like keybindings, query editor, and cross-platform support for PostgreSQL, MySQL, SQLite, and more.

pgfathom is a read‑only CLI tool that discovers undocumented PostgreSQL relationships by analyzing catalog data, usage evidence, and statistics. It outputs verdicts (broken, confirmed, weak) and reviewable SQL scripts to help fix hidden foreign keys.

TimescaleDB is a PostgreSQL extension designed for high-performance real-time analytics on time-series and event data.

ChaosSQL is a deterministic concurrency and isolation fuzzer for PostgreSQL, MySQL and SQLite. It schedules concurrent transactions, detects invariant violations such as lost updates and write skew, shrinks failures to minimal reproductions, and can guard CI pipelines against regressions.

pgrust is a Rust re-implementation of PostgreSQL designed for high performance, featuring wire and SQL dialect compatibility with Postgres.

Metabase is an open-source business intelligence and embedded analytics tool designed to allow users to query data and create dashboards without requiring SQL knowledge.

Artifact Gateway is a lightweight, protocol-native software artifact repository that supports OCI, Maven, npm, PyPI, Go modules, Conan 2, and Raw formats. It uses PostgreSQL for coordination and S3-compatible storage for artifacts, with no Redis, Kafka, or external message queues required. Available as a single binary or split roles, with a web Console for management.

NocoDB is a free, self-hostable open-source alternative to Airtable that provides a no-code spreadsheet interface for databases.

DBeaver is a free, multi-platform database tool and SQL client for developers, DBAs and analysts, supporting 100+ database drivers via JDBC/ODBC, with SQL editor, data editor, ER diagrams, import/export and AI chat integration.

Supabase is an open-source Postgres development platform combining hosted database, authentication, auto-generated REST/GraphQL and realtime APIs, edge functions, file storage, an AI/vector toolkit, and a dashboard, with official and community client libraries.

ChartDB is an open-source, web-based database diagram editor that lets you visualize schemas instantly with a single query. No installation or password needed. Supports multiple databases and AI-powered SQL export.

A self-hosted dashboard that receives license plate detections from UniFi Protect webhooks, stores them in PostgreSQL, optionally captures short RTSP/FFmpeg clips of each detection, and offers searchable admin views with optional UK DVLA vehicle lookups.

Directus wraps any SQL database with auto-generated REST and GraphQL APIs, a visual management Studio, and a native MCP server for AI agents. It supports granular permissions and self-hosting.

A self-hosted, local-first AI content factory: a LangGraph pipeline that discovers topics, researches them, writes long-form posts, filters drafts through multi-model QA rails, and exports static output — with inference running on your own GPU via Ollama.

APIJSON is a JSON-based communication protocol and ORM library that lets clients define the data and structure they need, reducing backend API and documentation work. It supports CRUD, fuzzy search and remote function calls across many databases and languages.

Plausible Analytics is an open-source, privacy-first web analytics tool and cookie-free alternative to Google Analytics. It is available as managed cloud or self-hosted Community Edition, with a simple dashboard, lightweight tracking, goals, real-time insights, APIs, and GDPR/CCPA/PECR compliance.

J.A.R.V.I.S is a local-first OSINT platform that uses AI and web scraping to build comprehensive intelligence dossiers on individuals while ensuring data privacy.

Overflow is a cooperative credit ledger for open-source work: sponsors offer issues, contributors close them via GitHub, and the service records settled transfers with labels, comments, API tokens and MCP tools.

PostgREST serves a fully RESTful API from any existing PostgreSQL database. It handles JWT authentication, delegates authorization to database roles, supports schema-based versioning, generates OpenAPI docs, and pushes data validation and JSON serialization into SQL.

RisingWave is an event streaming platform designed for agentic AI that integrates ingestion, processing, and serving into a single system.