How to open a JSON file online
Three steps, a few seconds, no software.
Open your .KLM file
Drop it on the box, choose it from your device, or paste the data straight in.
View the structure
Your .KLM file opens as a tidy, foldable tree, with the exact line of any error pointed out.
Search, copy or download
Search keys and values, copy any path or value, switch to a table, or download a clean copy.
What is a .KLM file?
The most common data format on the web.
A .klm file is almost always a .kml file with its last two letters transposed, the same Keyhole Markup Language geographic data, just with the wrong extension. Rename it from .klm to .kml, then open it in Google Earth, Google My Maps, or QGIS. No conversion tool is needed; the file contents are already correct KML.
Programs that open .KLM files
| Full name | Misspelled KML (Keyhole Markup Language) File |
|---|---|
| Developer | Keyhole, Inc. / Google (KML maintained by the Open Geospatial Consortium) |
| First released | KML: 2004 (Google acquired Keyhole); KML 2.2 became an OGC standard in 2008 |
| Category | Text & Code |
| MIME type | application/vnd.google-earth.kml+xml |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .KLM file uploaded anywhere?
No. The file is opened directly from the copy you pick.
My .KLM file is invalid. Can you fix it?
We show the exact line and column of the first error. For common problems like comments, trailing commas, single quotes or Python-style True/False/None, click Try to repair and download the fixed file.
How large can the file be?
Up to 50 MB. The tree only builds the branches you open, so even multi-megabyte files stay responsive.
What is JSONPath?
A path like $.orders[3].customer.email that points to one value inside the data. Click any node to see its path and copy it for code, jq or your API docs.
Can I see my data as a table?
Yes. Any array of objects can be shown in the Table view and downloaded as CSV.
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