What split modes are available?

Three: every N points (fixed-size chunks), by time gap (start a new part whenever the gap between two points exceeds your threshold), and by date (a new part per calendar day in the timestamps).

Does time-gap or date splitting need timestamps?

Yes. Those two modes read the time element on each track point. If your file has no timestamps, use the every-N-points mode instead.

Are the output files valid GPX?

Yes. Each part is wrapped in a complete GPX 1.1 document with a single track and segment, so every piece opens in any GPX-aware app on its own.

Is my track uploaded?

No. The file is parsed and split entirely in your browser using the built-in XML parser — your GPS data never leaves your device.

What happens to elevation and time on each point?

Each track point is copied verbatim, including its ele and time children, so no elevation or timing information is lost in the split.

What is the GPX Splitter?

Divide one large GPX track into several smaller GPX files — split every N points, on time gaps above a threshold, or at calendar-day boundaries. All logic runs in your browser with no upload. It runs free in your browser on Gera Tools, with nothing uploaded.

GPX Splitter — Gera Tools

Name: GPX Splitter
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

Split a GPX file in your browser

This tool breaks one large GPX track into several smaller GPX files. It is built for anyone whose device recorded a multi-day trip or a very long ride as a single file and now wants it cut into manageable, per-day or fixed-size pieces.

How it works

The GPX is parsed with the browser’s DOMParser, and all track points are collected in order. Then one of three rules is applied:

Every N points — the list is chopped into fixed-size chunks of N points each.
By time gap — a new part begins whenever the time between two consecutive points exceeds your threshold in minutes, which neatly separates recordings paused overnight.
By date — a new part begins whenever the calendar day of a point’s timestamp changes, giving you one file per day.

Each resulting group of points is wrapped in a complete, standalone GPX 1.1 document.

When you need to split a GPX file

Multi-day hiking trips: A GPS device left recording continuously over several days produces a single GPX file with tens of thousands of points spanning multiple calendar days. Splitting by date produces clean day-by-day files, each of which can be analysed or shared independently. Many route-planning apps (Komoot, AllTrails, Strava) have size or point-count limits that make uploading a raw multi-day track impractical.

Very long rides or rides with pauses: A cycling computer that records every second for an 8-hour ride with lunch breaks produces a file with a large time gap mid-track. Splitting by time gap (for example, any pause over 30 minutes) creates two clean activity files — morning and afternoon — rather than one file with a confusing zero-movement section in the middle.

Battery-limited devices: Some cheaper GPS watches or trackers stop and restart recording when the battery dips, producing a new track segment for each restart within a single file. Splitting by time gap handles this well by separating segments that had a gap exceeding your threshold.

Reducing file size for upload: Some platforms limit GPX uploads by file size or point count. Splitting every N points lets you stay within these limits while preserving full detail in each chunk.

Choosing the right mode

Situation	Best mode
Multi-day trek logged as one file	By date
Long activity with overnight stops	By time gap (threshold: 60–480 min)
Consistent GPS recording interval, just too many points	Every N points
No timestamps in the file	Every N points (only mode available)

For the time-gap mode, a useful threshold is typically 2-4 hours for separating day hikes or rides, and 6-12 hours for separating overnight pauses.

What each output file contains

Every output file is a complete, valid GPX 1.1 document with a single track containing a single segment. The track point data (latitude, longitude, elevation, timestamp) is copied verbatim from the original, so no information is lost. The file can be opened directly in any GPX-compatible application, including Garmin Express, Strava, Suunto App, Komoot, or any GIS tool.

Notes

Everything runs locally — nothing is uploaded. Time-gap and date modes need timestamps on the points; if yours has none, the every-N-points mode always works. To recombine parts later, use the GPX Merger.