SampleTestFiles

100 KB GeoJSON sample file

A GeoJSON file of exactly 102,400 bytes. It is a valid GeoJSON file, generated for this site and checked with an independent parser.

Download

sample-geojson-100kb.geojson

100 KB102,400 bytes

Download 100 KB GeoJSON

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Type
application/geo+json
SHA-256
cd463f305380c01d799549a0bb094dfb8c73181ae14d879266bf9110f200e1dd
Direct URL
https://sampletestfiles.com/downloads/geojson/sample-geojson-100kb.geojson

What is in this file

A FeatureCollection of 529 features around real cities, mostly points with a line string and a polygon in every ten. A "padding" foreign member, which RFC 7946 permits, brings the file to the exact size.

Features529
Geometry typesPoint, LineString, Polygon
Coordinate orderLongitude, latitude (WGS 84)
EncodingUTF-8 (ASCII characters only)

How the file begins

The opening lines of sample-geojson-100kb.geojson, exactly as they appear in the file.

{
  "type": "FeatureCollection",
  "name": "Sample GeoJSON file (100 KB)",
  "features": [
    {"type":"Feature","id":1,"geometry":{"type":"Point","coordinates":[73.83462,18.59249]},"properties":{"id":1,"name":"Pune point 1","country":"IN","…
    {"type":"Feature","id":2,"geometry":{"type":"Point","coordinates":[-51.16601,-30.02046]},"properties":{"id":2,"name":"Porto Alegre point 2","count…
    {"type":"Feature","id":3,"geometry":{"type":"Point","coordinates":[19.98396,50.03682]},"properties":{"id":3,"name":"Krakow point 3","country":"PL"…
    {"type":"Feature","id":4,"geometry":{"type":"Point","coordinates":[-9.13138,38.63969]},"properties":{"id":4,"name":"Lisbon point 4","country":"PT"…

Preview

Shows the first 64 KB of the file.

Where 100 KB matters

A 102,400-byte file that sits exactly on the default request-body limit of Express. These are the default limits a file of this size is useful for testing:

SystemLimitNote
Express body parsers100 KB (102,400 bytes) by defaultA request body of exactly this size passes; anything larger returns 413 Payload Too Large.
Gmail message clippingAbout 102 KB of HTMLLonger messages are truncated behind a "view entire message" link.
Amazon DynamoDB items400 KB per item100 KB fits; the 500 KB sample does not.

All 100 KB sample files

Use this file for

  • Checking email size handling
  • Load-testing map rendering with many features
  • Testing map layers and spatial queries

Testing notes for GeoJSON

  • Polygon rings must be closed, with the first and last positions identical.
  • Swapped latitude and longitude put points in the wrong hemisphere or the ocean. Test with locations you can recognise.

GeoJSON format reference

Technical details

File namesample-geojson-100kb.geojson
FormatGeoJSON (GeoJSON)
Extension.geojson
MIME typeapplication/geo+json
Size102,400 bytes (100 KB)
KindText
SHA-256cd463f305380c01d799549a0bb094dfb8c73181ae14d879266bf9110f200e1dd
Created2026-10-10
ValidationExact size, signature bytes and structure checked when the file was generated
PreviewAvailable on this page
SourceGenerated for this site; not copied from elsewhere
LicenceFree to use, modify and redistribute (terms)
CategoryGIS

Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked

Download from the command line and verify

Fetch the file with curl, then compare its checksum with the SHA-256 value above.

curl -o sample-geojson-100kb.geojson 'https://sampletestfiles.com/downloads/geojson/sample-geojson-100kb.geojson'
sha256sum sample-geojson-100kb.geojson     # Linux
shasum -a 256 sample-geojson-100kb.geojson # macOS

On Windows, run Get-FileHash sample-geojson-100kb.geojson -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.

Related files

Other GeoJSON sizes

Other 100 KB files

Use cases

Guides

Questions about this file

Is this file exactly 100 KB?
Yes. It is 102,400 bytes, which is 100 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 100 KB GeoJSON file?
A FeatureCollection of 529 features around real cities, mostly points with a line string and a polygon in every ten. A "padding" foreign member, which RFC 7946 permits, brings the file to the exact size.
Where are the sample features located?
Near sixteen real cities on six continents, with small random offsets, so the result is easy to check on a map.