Convert KMZ files to CSV, online and free. GISConverter reads your KMZ data locally in the browser and writes a CSV file so you can open the attributes in Excel or a spreadsheet — nothing is uploaded, and your data never leaves your computer.
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KML, KMZ, SHP (.zip), GeoJSON, GPKG, GML, GPX, DXF, GeoTIFF, and more
KMZ is a vector GIS format, so it isn't always the format the next tool expects. Converting it to CSV lets you open the attributes in Excel or a spreadsheet without redrawing or re-collecting anything. Because GISConverter runs a full GDAL engine in your browser, the geometry and attributes carry across faithfully, and the file never leaves your device.
KMZ (.kmz): A KMZ file is simply a KML document compressed into a ZIP archive, optionally bundling icons, images and overlays alongside it. It is smaller than raw KML and is the format Google Earth exports by default, which makes it the usual way to hand a finished map to someone else.
CSV (.csv): CSV is the universal spreadsheet exchange format: rows of plain-text values that open in Excel, Google Sheets or any text editor. For mapping, a CSV becomes spatial when it carries coordinate columns — typically latitude/longitude, or an X/Y pair — that a GIS can turn into points.
Yes. GISConverter is completely free and runs in your browser — no signup, no watermark, and no daily limit.
No. Your KMZ file is read and converted locally on your device with a GDAL engine compiled to WebAssembly, so it never leaves your computer.
CSV is the universal spreadsheet exchange format: rows of plain-text values that open in Excel, Google Sheets or any text editor.
A KMZ file is simply a KML document compressed into a ZIP archive, optionally bundling icons, images and overlays alongside it.
Yes. Output defaults to EPSG:4326 (WGS84 longitude/latitude). Enter any EPSG code, such as EPSG:3857, in the coordinate-system box to reproject on the way out.
