SampleTestFiles

50 MB GPX sample

A GPX file of exactly 52,428,800 bytes. It is a valid GPS Exchange Format file, generated by this site. Compare its checksum and test it with the parser used by your application. Use it wherever you need a 50 MB sample, test or dummy GPX file.

Download

sample-gpx-50mb.gpx

50 MB52,428,800 bytes

Download 50 MB GPX

Created in your browser and, in browsers that can stream to disk, sent straight to your downloads list; this can take a minute. No sign-up.

Type
application/gpx+xml
SHA-256
973df06b7458c6f028726f58eaa38c140c69d038fdf0b5a328915a3461abf4e0
Delivery
Created in your browser from static generator assets (how it works).

What is in this file

A GPX 1.1 file with metadata, one waypoint and a track of 512,253 points five seconds apart, each with elevation and a UTC timestamp. An XML comment before the closing tags brings the file to the exact size.

Track points512,253
Waypoints1
GPX version1.1
Interval5 seconds
EncodingUTF-8 (ASCII characters only)

How the file begins

The opening lines of sample-gpx-50mb.gpx, 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  67 70 78 20 76 65 72 73 |F-8"?>.<gpx vers|
00000030  69 6f 6e 3d 22 31 2e 31  22 20 63 72 65 61 74 6f |ion="1.1" creato|

Preview

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

Where 50 MB matters

A 52,428,800-byte file: exactly the size at which Git hosting on GitHub starts warning about large files, and about the limit for a zipped AWS Lambda package uploaded directly.

All 50 MB sample files

Use this file for

  • Finding the first upload limit in a new stack
  • Testing activity upload in fitness and mapping apps
  • Checking distance, speed and elevation calculations

Testing notes for GPX

  • Devices add heart rate, cadence and temperature in extension elements from other namespaces. A parser must skip what it does not recognise.
  • GPX writes latitude before longitude, the opposite of GeoJSON and KML. Converters that copy the numbers across without swapping them put tracks in the wrong place.

GPX format reference

Technical details

File namesample-gpx-50mb.gpx
FormatGPX (GPS Exchange Format)
Extension.gpx
MIME typeapplication/gpx+xml
Size52,428,800 bytes (50 MB)
KindText
SHA-256973df06b7458c6f028726f58eaa38c140c69d038fdf0b5a328915a3461abf4e0
Created2026-10-23
ValidationSee 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.
PreviewAvailable on this page
SourceGenerated in your browser by this site's generator; not copied from elsewhere
LicenceFree to use, modify and redistribute (terms)
CategoryGIS

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-gpx-50mb.gpx     # Linux
shasum -a 256 sample-gpx-50mb.gpx # macOS

On Windows, run Get-FileHash sample-gpx-50mb.gpx -Algorithm SHA256 in PowerShell. For scripts and pipelines, save the file once and keep your own copy.

Related files

Other GPX sizes

Other 50 MB files

Use cases

Guides

Questions about this file

Is this file exactly 50 MB?
Yes. It is 52,428,800 bytes, which is 50 MB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
What is inside the 50 MB GPX file?
A GPX 1.1 file with metadata, one waypoint and a track of 512,253 points five seconds apart, each with elevation and a UTC timestamp. An XML comment before the closing tags brings the file to the exact size.
What do the GPX samples contain?
One waypoint and one track with a single segment: a fictional walk that starts in Lisbon, with a point every five seconds, each carrying an elevation and a UTC time.