WhiteboxTools (WBT) is an advanced geospatial software package and a data analysis platform with functionality in GIS, remote sensing, LiDAR data processing, DEM analysis, spatial hydrology, and stream network analysis. It was developed by Dr. John Lindsay, at the University of Guelph, and co-founder of Whitebox Geospatial Inc. This plugin provides the QGIS plugin interface with WBT, however it does not include the WBT binary itself. Before using the tools, you will need to download and install them from [https://www.whiteboxgeo.com/](https://www.whiteboxgeo.com/geospatial-software/). Instructions about how to install this plugin can also be found in the user manual, at [https://www.whiteboxgeo.com/manual/wbt_book/qgis_plugin.html](https://www.whiteboxgeo.com/manual/wbt_book/qgis_plugin.html). For a video demonstrating how to setup the plugin, please see [https://www.youtube.com/watch?v=xJXDBsNbcTg&t=3s](https://www.youtube.com/watch?v=xJXDBsNbcTg&t=3s). Importantly, after installing the plugin for the first time, you may not see any plugin tools listed in the Processing toolbox because you will have yet to tell the plugin where it can find the WhiteboxTools binary (back-end). After downloading and decompressing the WhiteboxTools binary, which will be contained in a WBT folder, start by going to Settings => Options => Processing => Providers => WhiteboxTools and setting the WhiteboxTools executable parameter. This parameter must point to the WhiteboxTools binary within the WBT folder, which will either be called whitebox_tools.exe (Windows) or whitebox_tools (all other operating systems). After this parameter is set, the plugin will automatically generate the description files for each tool associated with the back-end, after which you will see the plugin listed in the Processing toolbox. This step may take a few minutes. If you upgrade the version of your WhiteboxTools back-end, or install the [Whitebox Toolset Extension (WTE)](https://www.whiteboxgeo.com/whitebox-toolset-extension/) you may also force the recreation of tool descriptions using the 'Recreate tool description files' parameter setting.