500 KB KML sample

A KML file of exactly 512,000 bytes. It is a valid Keyhole Markup Language file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 500 KB sample, test or dummy KML file.

sample-kml-500kb.kml

500 KB512,000 bytes

Download 500 KB KML

Created in your browser in a few seconds, then checked against the SHA-256 checksum. The file is not uploaded anywhere. No sign-up.

Type: application/vnd.google-earth.kml+xml
SHA-256: 01c82e2d906b4b37f3457f8406198c722a713b29e5f562db04027cadd6cbe5a5
Delivery: Created in your browser from static generator assets (how it works).

What is in this file

A KML 2.2 document with a shared style and 2,199 placemarks, each a named point with a description. An XML comment before the closing tags brings the file to the exact size.

Placemarks	2,199
KML version	2.2
Geometry	Point
Network links	None
Encoding	UTF-8 (ASCII characters only)

How the file begins

The opening lines of sample-kml-500kb.kml, exactly as they appear in the file.

00000000  3c 3f 78 6d 6c 20 76 65  72 73 69 6f 6e 3d 22 31 |<?xml version="1|
00000010  2e 30 22 20 65 6e 63 6f  64 69 6e 67 3d 22 55 54 |.0" encoding="UT|
00000020  46 2d 38 22 3f 3e 0a 3c  6b 6d 6c 20 78 6d 6c 6e |F-8"?>.<kml xmln|
00000030  73 3d 22 68 74 74 70 3a  2f 2f 77 77 77 2e 6f 70 |s="http://www.op|

Preview

Creates the file in your browser and shows the first 64 KB of it.

Where 500 KB matters

A 512,000-byte file: larger than most API body limits, smaller than most upload limits. These are the default limits a file of this size is useful for testing:

System	Limit	Note
Amazon DynamoDB items	400 KB per item	500 KB cannot be stored as a single item.
Express body parsers	100 KB by default	Rejected unless the limit is raised.
nginx request body	1 MB by default (client_max_body_size)	Accepted with room to spare.

All 500 KB sample files

Use this file for

Checking email size handling
Checking conversion between KML, GPX and GeoJSON
Verifying coordinate-order handling

Testing notes for KML

KML can pull in remote content through network links and icon URLs. An importer should not fetch them blindly. The samples here refer to nothing outside the file.
Longitude comes first. Reading the pair the other way round moves every point to a different part of the world.

KML format reference

Technical details

File name	sample-kml-500kb.kml
Format	KML (Keyhole Markup Language)
Extension	.kml
MIME type	application/vnd.google-earth.kml+xml
Size	512,000 bytes (500 KB)
Kind	Text
SHA-256	01c82e2d906b4b37f3457f8406198c722a713b29e5f562db04027cadd6cbe5a5
Created	2026-10-23
Validation	See the listed size and SHA-256. Small downloads are checked in the browser; verify streamed downloads manually. A hash match does not prove parser compatibility.
Preview	Available on this page
Source	Generated in your browser by this site's generator; not copied from elsewhere
Licence	Free to use, modify and redistribute (terms)
Category	GIS

Check the stated structure and checksum against your application requirements. As with any download, scan the file with your own security tools before opening it. How files are made and checked

Verify your copy

This file is created in your browser, so it has no direct URL for curl or wget. The generator is designed to produce reproducible bytes. After saving, compare the checksum with the SHA-256 value above.

sha256sum sample-kml-500kb.kml     # Linux
shasum -a 256 sample-kml-500kb.kml # macOS

On Windows, run Get-FileHash sample-kml-500kb.kml -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy.

Related files

Questions about this file

Is this file exactly 500 KB?: Yes. It is 512,000 bytes, which is 500 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 500 KB KML file?: A KML 2.2 document with a shared style and 2,199 placemarks, each a named point with a description. An XML comment before the closing tags brings the file to the exact size.
Is there a KMZ sample?: Not at present. A KMZ file is a ZIP archive with a KML file inside, so you can make one by zipping any sample and renaming the result.

Download