Graphic Walker

Graphic Walker, from Kanaries, is an open-source visual analytics tool positioned as an alternative to Tableau. Users build charts and pivot tables by dragging fields onto visual channels, and can also ask questions in natural language. It is released under the Apache-2.0 license.

Its main distinction is that it ships as a React component that you embed in your own application, rather than as a heavy business-intelligence platform. The interface follows a grammar of graphics based on Vega-Lite, supports spatial visualizations from GeoJSON and TopoJSON, and includes light and dark themes. A data explainer suggests why patterns occur, and a hand-writable chart specification called TerseSpec describes charts in compact form.

Computation can run in the browser using web workers, which allows a purely front-end setup, or queries can be passed to your own computation service, for example one using DuckDB as in the Python companion PyGWalker. It suits developers who want to add exploratory analysis to a product and data scientists who want fast visual exploration without a full BI stack.