CSV to KMZ Converter — free & private
Paste a CSV (or upload) with a WKT column, lon/lat columns, or bbox columns and convert rows to KMZ. Runs fully in your browser.
FAQ
Is my CSV uploaded anywhere?
No. Parsing and KMZ generation run locally in your browser. Your data stays on your device.
What geometry inputs does this support?
Auto-detects one of: a WKT column (wkt/geometry/geom/the_geom), longitude + latitude columns (Points), or bbox columns (minx/miny/maxx/maxy) that become rectangle Polygons.
Does this reproject coordinates?
No. KMZ/KML expects lon/lat (WGS84 / EPSG:4326). If your data is projected (meters), reproject first.
Why are some rows skipped?
Rows are skipped when geometry cannot be built (missing lon/lat, incomplete bbox, or empty/invalid WKT).
Why does it say the export is limited?
Row limiting is enabled by default (5000 rows) to keep the browser responsive. Disable it to export everything, but huge CSVs can freeze the tab.
What is the base64 output?
KMZ is binary. The tool shows a base64 representation for easy pasting into scripts, but you can also download the .kmz directly.
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