GIS conversion guides
Start with the files you have. Each guide explains the supported workflow, the output, and the limits to check before converting.
Convert GeoJSON to GeoPackageA .geojson or .json file containing GeoJSON features.Convert GeoPackage to GeoJSONA vector .gpkg file with a known source CRS.Convert Shapefile ZIP to GeoJSONA ZIP with matching .shp, .shx and .dbf files. Include .prj for CRS and .cpg for encoding.Convert KML to GeoJSONAn uncompressed .kml file containing vector features. KMZ is not accepted.Convert ASCII Grid to GeoTIFFAn Arc/Info ASCII Grid .asc file, with a matching .prj when available.Make a GeoTIFF compatible with QGISOne .tif or .tiff, optionally paired with a matching .tfw.
Troubleshooting QGIS
QGIS “Wrong JPEG library version” when opening a TIFF on MacQGIS opens, but a TIFF will not load? Understand the JPEG library error and try a local GeoTIFF rewrite.Raster files and practical fixes
JPG + JGW to GeoTIFF: keep your image’s map positionConvert a JPEG and its matching JGW world file to GeoTIFF locally in your browser. Keep available map positioning and understand what happens to the CRS.Why is my TIFF bigger after clipping or exporting from QGIS?A clipped TIFF can be larger than its source when compression or data type changes. Learn when a local DEFLATE rewrite can reduce size without resizing.
All guides use the same local converter
These pages explain existing Recast features. Your data stays in your browser, and the actual conversion begins in the converter after file inspection and your output selection.
Ready to convert a supported file?
Inspect it locally, choose an output, and save your result.
Open the free converter ↗Check formats and limits