KML to CSV Converter
Processing entirely on your device — large files may take a moment.
Keyhole Markup Language and CSV Spreadsheet exist for different jobs: KML is Google Earth’s XML markup for places, paths and polygons — still the lingua franca of consumer map sharing. CSV is the common language of data — importing contacts, analytics exports and database dumps almost always expects CSV.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How KML compares to CSV
| KML | CSV | |
|---|---|---|
| Structure | XML placemarks & folders | One flat table |
| Types / schema | Points, lines, polygons, styles | Untyped (all strings) |
| Compatibility | Google Earth, Maps, agencies | Excel, Sheets, databases, code |
| Best for | Sharing annotated places | Data exchange and bulk import |
How to convert KML to CSV
- 1
Select your files
Drag & drop your KML files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to CSV". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted CSV file individually, or grab everything at once as a ZIP archive.
About the KML format
KML (Keyhole Markup Language) started life as Google Earth’s file format and became an OGC standard. It describes placemarks, paths, polygons and even camera tours, with rich styling — which is also why it is heavier and harder to parse than GeoJSON.
Most KML files in the wild come from Google Earth exports and government portals. Converting them to GeoJSON puts the same places into any web map without a Google Earth dependency.
+ Strengths
- ✓Rich styling, tours and descriptions
- ✓Google Earth and Maps read it natively
- ✓OGC standard, widely published by agencies
! Limitations
- −Verbose XML, hard to hand-edit
- −Web map libraries need conversion first
About the CSV format
CSV (comma-separated values) is the lowest common denominator of tabular data: one table, rows as lines, columns separated by commas, everything plain text. Excel, Google Sheets, every database importer, every data-science library and every scripting language read it, which is why it has survived fifty years of format fashion.
Its weaknesses come from the same minimalism. There are no types (everything is a string until you decide otherwise), no formulas, one table per file, and dialect quirks are legendary: comma vs semicolon locales, quoting rules, and Excel's insistence on re-opening UTF-8 files without a BOM as mojibake. Clean, well-formed UTF-8 CSV with a BOM sidesteps nearly all of it.
+ Strengths
- ✓Universal: Excel, Sheets, databases and code all read it
- ✓Human-readable and diff-friendly
- ✓Streams well — process giant files line by line
! Limitations
- −No types, no formulas, no multiple sheets
- −Dialect chaos: delimiters, quoting, encoding
- −Nested or hierarchical data does not fit
Why convert KML to CSV?
Converting makes sense where the strengths of CSV meet what KML cannot give you. Universal: Excel, Sheets, databases and code all read it Meanwhile Verbose XML, hard to hand-edit One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this KML to CSV converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
What about special characters and non-English text?
Everything is handled as UTF-8. When you export CSV for Excel, a UTF-8 BOM is included automatically so Chinese, Japanese, Korean and accented characters display correctly on both Windows and macOS.
How large can my KML file be?
Since everything runs locally in your browser, the real limit is your device memory rather than an upload cap. Files up to a few hundred megabytes are usually fine on a modern computer; extremely large ones simply take longer.
Is my data safe here?
Yes. The conversion is plain JavaScript running in your tab: the data is parsed and re-serialized in memory, never sent anywhere, and disappears when you close the page.