QTiles converts georeferenced images into web-ready XYZ tiles
Converts georeferenced raster images into XYZ tiles using a WPF desktop editor and a command-line renderer, with real-time preview and TileJSON output. Developed by Code-iX, the tool targets cartographers, GIS professionals, and web map developers who need to turn scanned maps or aerial photos into tiled map layers. It pairs a manual control-point georeferencing interface with a NetVips-powered rendering pipeline and supports PNG, JPG, and WebP tile output for web mapping frameworks.
What QTiles performs in a georeferencing-to-tiling workflow
QTiles accepts a raster image, lets you place control points in the WPF editor, and renders standard XYZ tiles ready for Leaflet, OpenLayers, or Mapbox. The app produces folder-based tile output and generates TileJSON metadata alongside the tiles, so the tile set's bounds and zoom data are recorded automatically. The included CLI lets you run the same rendering steps headlessly as part of a scripted pipeline.
How rendering affects system resources and speed
The renderer uses NetVips for image processing and Math.NET Numerics for calculations, which the developer cites to improve performance. In practice, that means the rendering pipeline favors efficient memory use compared with naive image libraries, and the CLI supports batch jobs where desktop UI overhead is absent. Real-time preview updates let you verify alignment before committing long renders.
Safety, output integrity, and operational controls
The georeferencing interface relies on manual control-point placement, so the tool preserves the original raster until you export tiles; this keeps the source image unchanged during preparation. Tile generation writes standard XYZ folders and image files (PNG, JPG, WebP), which web frameworks can read directly. The command-line mode lets you automate repeated exports without opening the GUI, reducing human error in repetitive tasks.
Who benefits and what skill level it requires
QTiles targets GIS professionals and developers who already work with web maps: the control-point georeferencing model and CLI expect knowledge of coordinate matching and tile serving. Casual users may need to learn basic georeferencing concepts before using the tool safely. The WPF interface gives guided visual feedback, while the CLI accommodates integration into developer workflows and build scripts.
Clear technical fit with a focused scope
QTiles suits cartographers and web map developers who need a dedicated tool to convert legacy rasters into XYZ tiles and TileJSON metadata. It balances a manual georeferencing editor with an automatable CLI, so technical users can verify alignment visually and then run batch renders. Expect a focused, developer-oriented workflow rather than a full GIS suite. Recommended.
