DuckDB
Analytical SQL queries can be run with DuckDB, an open-source database system.
About DuckDB
DuckDB is an open-source analytical SQL database system that can run in-process and be deployed on edge devices and servers. It uses a PostgreSQL-inspired query language and is maintained with related projects including a client-server protocol and lakehouse format support.
It can read and write formats such as CSV, JSON, Parquet and Iceberg locally or in object storage. It also supports extensions for functions and formats, and APIs for major programming languages.
Key features
- Run analytical SQL queries in-process
- Read and write CSV, JSON, Parquet, and Iceberg
- Query data locally or in object storage
- Use PostgreSQL-inspired SQL query language
- Add functions and formats through extensions
- Connect with Python, R, Java, Node.js, Go, and Rust
Best for: Developers and analysts who run analytical SQL across programming languages and file formats.
Good for
- Open source under MIT license and governed by independent foundation
- Can deploy on edge devices and servers with hundreds of cores
- Reads and writes CSV, JSON, Parquet, Iceberg and other formats
DuckDB at a glance
- Website
- duckdb.org
- Category
- Development › APIs & Databases
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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