Open source. Open possibilities.

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.

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.

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.

Huey is a static, browser-based data exploration and analysis tool using DuckDB-WASM. Supports CSV, Parquet, JSON, XLSX, and DuckDB files with pivot tables, query builder, and derived attributes. Data stays local for privacy.

SQLModel is a library for interacting with SQL databases in Python, designed to reduce code duplication by combining SQLAlchemy and Pydantic.

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.

Read-only-by-default Model Context Protocol (MCP) server for Microsoft SQL Server, providing metadata discovery, parameterized SELECT-only queries, execution plan analysis for slow query diagnosis, profile-based multi-connection configuration, and optional per-profile write access, shipped as a .NET NuGet tool.

A large open-source collection of 2624 DevOps and SRE interview questions and hands-on exercises spanning Linux, Kubernetes, Terraform, AWS, Azure, GCP, Docker, Ansible, CI/CD, networking, databases, observability, and more.

SQLFluff is a modular, dialect-flexible SQL linter and auto-formatter that auto-fixes most linting errors and works with Jinja and dbt templating for ELT workflows.

mq-db is a Rust-based embedded database that treats Markdown as a structured, hierarchical store with interval indexing, supporting SQL and mq queries, full-text search, and write‑back editing.

Turso Database is an in-process SQL database written in Rust and compatible with SQLite, adding an experimental PostgreSQL frontend, multi-language bindings, MVCC concurrency, change data capture and vector support.

sqlc generates type-safe code from SQL queries, supporting multiple languages via plugins. It compiles SQL to idiomatic code, reducing boilerplate and errors.

AetherGrid is a distributed AI workload orchestrator built with strict Domain-Driven Design, featuring lease-based execution ownership, event-driven reconciliation, API key auth, and a React dashboard.

POCO is a collection of cross-platform C++ class libraries for building network- and internet-based applications across desktop, server, mobile, IoT, and embedded systems.

Apache Spark is a unified analytics engine designed for large-scale data processing, offering high-level APIs and an optimized engine for general computation graphs.

Apache Flink is an open-source stream processing framework providing powerful capabilities for both data streaming and batch processing.

TiDB is an open-source, cloud-native distributed SQL database with ACID transactions, horizontal scalability, Raft-based high availability, HTAP via TiKV and TiFlash, MySQL 8.0 compatibility, and vector search support.

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

A free, browser-based database entity relationship diagram (ERD) editor and SQL generator.

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.