Open source. Open possibilities.

Kysely is a type-safe and autocompletion-friendly TypeScript SQL query builder inspired by Knex.js.

SQLAlchemy is a comprehensive SQL toolkit and Object Relational Mapper (ORM) for Python, providing both a high-level ORM and a low-level Core abstraction layer.

Exposed is a lightweight Kotlin SQL framework and ORM providing a typesafe DSL and DAO API for relational database access, supporting JDBC and R2DBC drivers across multiple database engines.

Bun is a lightweight, SQL-first ORM for Go that supports PostgreSQL, MySQL, SQLite, MSSQL, and Oracle. It emphasizes type safety, flexible scanning, and complex query building while staying close to raw SQL.

Karma is a modular Go utility library offering prebuilt solutions for authentication, SQL parsing, middleware, third-party API integration (Twilio, OpenAI), and file management to reduce boilerplate in backend development.

A DuckDB compatibility harness for rudb. It verifies conformance through differential execution against a real DuckDB binary, weighted SQL coverage, storage format round trips, and C ABI checks.

A Go-based database migration tool available as both a CLI and a library. It reads migrations from various sources and applies them in order to many supported databases, with lightweight drivers and graceful stop support.

TypeScript ORM for Node.js using Data Mapper, Unit of Work, and Identity Map patterns. Supports multiple SQL and NoSQL databases including PostgreSQL, MySQL, MongoDB, and SQLite.

Dapper is a lightweight object mapper for .NET that adds extension methods to ADO.NET connections, offering a simple API for executing SQL with synchronous and asynchronous access, buffered and unbuffered queries, and mapping results to typed or dynamic objects.

SeaORM is a powerful relational ORM for building web services in Rust, offering a developer experience inspired by popular ORMs in Ruby, Python, and Node.js.

Aion is a cross-platform, .NET-based SQL client for developers and DBAs. It supports PostgreSQL, SQL Server, and MySQL, offering a modern UI, query history, JSON viewing, and query plan visualization.

Dolt is a SQL database with Git-style version control: databases can be forked, cloned, branched, merged, pushed and pulled like repositories, while MySQL-compatible clients connect and version control is exposed through SQL system tables and stored procedures.

Beekeeper Studio is a cross-platform SQL editor and database manager for Linux, macOS, and Windows. It offers a free Community Edition with many features and paid editions, supporting databases such as PostgreSQL, MySQL, SQLite, SQL Server, and more.

Storm is a type‑safe, SQL‑first ORM for Kotlin 2.0+ and Java 21+. It uses immutable data‑class entities, compile‑time metamodel queries, and eliminates N+1, proxies, and hidden persistence contexts.

A rich MySQL terminal client featuring auto-completion, syntax highlighting, and dataframe integration.

marimo is a reactive Python notebook that ensures consistency between code and outputs, stored as pure Python files for git-friendliness and deployability.

SQLGlot is a pure‑Python SQL parser, transpiler, optimizer, and engine that supports over 30 dialects, enabling formatting, cross‑dialect translation, AST manipulation, and optional C‑extension acceleration for fast SQL processing.

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

DSH engineer-level database plugin offering six tools—sql_list/query/exec/schema/stats/health—supporting SQLite, MySQL, and PostgreSQL with multiple connections, featuring read-only whitelisting, write approval gates, lexical read-only protection, streaming row clamping, and configurable timeouts.

OwnChat is a self-hosted desktop chat application built with Java Swing and sockets, using Oracle Database for storage. It supports account creation, contacts, real-time messaging, chat history, themes, and online status tracking.