100% local — files never leave your device
Convert CSV to KML
Turn CSV / delimited text into KML instantly in your browser. No upload, no account, and no file ever crosses the network.
About CSV / delimited text
Delimited table with lon/lat columns, a WKT geometry column, or both.
- With lon/lat output, non-point geometries are written as their centroid.
About KML
Google Earth / Maps markup with attributes in ExtendedData.
- KML is always written in EPSG:4326, as required by the specification.
Step by step
How to convert CSV to KML
- 01
Drop your .csv file
Open the converter and drop the CSV / delimited text file — parsing happens locally in a Web Worker, so nothing is uploaded.
- 02
Choose KML as the output
Pick KML, reproject to any of 180+ coordinate systems if needed, trim attributes and preview the geometry on a map.
- 03
Download the .kml file
Save a single file, or convert a whole batch and download everything as a ZIP. Nothing is stored after the download.
CSV to KML — questions
Is converting CSV to KML really private?
Yes. The conversion runs entirely in your browser using a Web Worker — the CSV / delimited text file is never sent to a server, so it works with confidential data and offline.
Do I need an account to convert CSV to KML?
No. There is no signup, no email and no install. Open the converter, drop the file and download the result.
What happens to attributes and coordinate systems?
KML is always written in EPSG:4326, as required by the specification. You can also reproject between 180+ coordinate reference systems or add a custom proj4 definition before writing.
Need the other direction? Convert KML to CSV