GizmoSQL – high-performance SQL server

GizmoSQL is a lightweight, high-performance SQL server built on:

• DuckDB or SQLite for query execution.
• Apache Arrow Flight SQL for fast, modern connectivity.
• Middleware-based auth with optional TLS & JWT.

This is free and open source software.

Features include:

• Deploy Anywhere — Run as a container, native binary, or in Kubernetes.
• Columnar Fast — Leverages Arrow columnar format for high-speed transfers.
• Dual Backends — Switch between DuckDB and SQLite at runtime.
• Built-in TLS + Auth — Password-based login + signed JWT tokens.
• Super Cheap Analytics — TPC-H SF 1000 in 161s for ~$0.17 on Azure.
• CLI, Python, JDBC, SQLAlchemy, Ibis, WebSocket — Pick your interface.

Website: github.com/gizmodata/gizmosql
Support:
Developer: GizmoData
License: Apache License 2.0

GizmoSQL is written in C++. Learn C++ with our recommended free books and free tutorials.

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