DuckDB-Wasm: Fast Analytical Processing for the Web

Picture of André Kohn
André Kohn
Picture of Mark Raasveldt
Mark Raasveldt
Picture of Hannes Mühleisen
Hannes Mühleisen
Picture of Thomas Neumann
Thomas Neumann
Published at VLDB | Sydney, Australia 2022
Teaser image


We introduce DuckDB-Wasm, a WebAssembly version of the data- base system DuckDB, to provide fast analytical processing for the Web. DuckDB-Wasm evaluates SQL queries asynchronously in web workers, supports efficient user-defined functions written in JavaScript, and features a browser-agnostic filesystem that reads local and remote data in pages. DuckDB-Wasm outperforms previ- ous data processing libraries for the Web in the TPC-H benchmark at multiple scale factors. We demonstrate the capabilities of an analytical database in the browser using an interactive SQL shell.