> ## Documentation Index
> Fetch the complete documentation index at: https://rendzo.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Crop & Split

> Trim routes or divide them into separate segments

The Crop & Split tool lets you trim unwanted portions from your routes or divide them into separate parts.

## Crop

Use cropping to keep only a specific portion of your track, removing unwanted sections from the beginning or end.

### Using the Slider

1. Select a track in the [File Tree](/docs/app/file-tree)
2. Open the Crop & Split tool
3. Use the slider to define the portion you want to keep
4. Watch the start and end markers update on the map
5. The [elevation profile](/docs/toolbar/elevation) updates in real-time to show your selection
6. Click **Apply** when satisfied with the result

### Using the Elevation Profile

You can also drag a selection rectangle directly on the elevation profile to define the crop range. This is especially useful for identifying specific climbs or sections you want to keep.

## Split

Split divides your track into two or more separate parts at specific points.

### Splitting at Markers

Split markers are displayed along your track at regular intervals. Click any marker to split the track at that location.

### Splitting at Custom Points

For precise control:

1. Hover over the track on the map
2. A scissors icon appears at your cursor position
3. Click to split the track at that exact point

### Split Output Options

When splitting, you can choose how to organize the resulting parts:

* **Separate files** - Create a new GPX file for each part
* **Same file, separate tracks** - Keep parts in one file as multiple [tracks](/docs/features/gpx-file-format)
* **Same track, separate segments** - Keep parts in one track as multiple [segments](/docs/features/gpx-file-format)

<Tip>
  Splitting into segments is useful when you want to maintain a single file but mark distinct sections of your route.
</Tip>