PIXELOKAY / LOCAL GIS UTILITIES

GPS Track Editor

Clean up GPS recordings without uploading your location history. Inspect routes, flag isolated GPS spikes, trim sensitive endpoints, shift timestamps, split or merge paths and export corrected GPX.

On-device by designNo map tile requests, accounts or server uploads.

Bring in a GPX track

Drop a .gpx file here, or browse from your device. GPX 1.0/1.1 · UTF-8 · Up to 12 MB / 150,000 points.

Choose GPX file

Paths 0

Add another GPX file

Import additional GPX files here to combine recordings. Separate track segments remain independent. Select one to edit; choose another under Merge to join them.

Edit points

Start point

End point

Point numbers start at 1. A range includes both endpoints.

Simplify tolerance (metres)

Keeps endpoints and significant time gaps. Removes elevation and timestamps belonging to dropped points.

Recording quality

Identify isolated GPS teleports using consecutive timestamped speeds. Candidates are suggestions, not proof of error. Review before removing.

Suspicious speed (km/h)

No analysis yet. Edits invalidate the previous analysis.

Privacy & timestamps

Trim the selected path by distance traveled from each endpoint. This is along-track distance, not a geographic radius.

Trim start (m)

Trim end (m)

Distances are applied to the selected path only. Undo restores trimmed points.

Affects all GPX exports, including imported waypoints. Undo restores them. It does not scrub place names, root metadata, or extension contents.

Shift selected path timestamps (minutes)

Positive values move timestamps later; negative values earlier. Existing timestamped points are converted to UTC; missing timestamps stay missing.

Split & merge

Split after point

The split point appears in both parts to preserve the join location.

Append another path

Merge joins coordinates in order and may connect distant endpoints. The second path’s point extensions are retained; its path-level metadata is not.

History & export

The original file on your device is never modified. GPX export preserves point extensions and unedited waypoints and removes potentially stale metadata bounds.

Offline route canvas

Geographic path view · no external maps

Drag to pan · Scroll to zoom · Click point to inspect

Selected path Other paths Selected point Start / finish

Total distance—

GPS points—

Elevation gain—

Track duration—

Point inspector

Select a point by clicking the canvas or using Previous/Next.

Latitude

Longitude

Elevation (m, optional)

Time (ISO 8601, optional)

Coordinate, elevation and timestamp edits are stored in your exported GPX. Other point details and supported extensions stay attached to the point.

Path details

Track

Path name

How does GPX editing work?

Clean a recording

Keep a point range or remove a stray GPS fix. For noisy traces, use distance-based simplification, which retains endpoints and time gaps but removes individual intermediate samples.

Split or combine paths

Split a track at an intermediate fix, or append another route of the same type. Multi-segment tracks are imported as separate selectable paths without connecting unrelated segments automatically.

Safeguard private locations

GPX often contains exact location and timestamps. Everything runs locally, including the route plot. Review exported data before sharing it and avoid publishing home or workplace coordinates.

Using GPS Track Editor

Review and edit GPX 1.0/1.1 tracks and routes, split or merge selected points, simplify cautiously, and export a reviewed GPX or point report.

Workflow

Open a GPX file and select tracks, segments or routes

edit points or ranges and review suggested spikes before applying simplification or trimming

export GPX, point CSV or an operation JSON report and inspect location metadata before sharing.

Example

Select one track segment, review a suggested spike against neighboring points, trim a short endpoint range, then export GPX and check whether the retained waypoints disclose sensitive locations.

Limits and data handling

This is a local GPX editor, not route planning, road snapping, tile mapping, FIT/TCX conversion or full GPX schema validation. Spike suggestions are heuristic. Simplification can remove intermediate records; splitting duplicates a boundary point and merging can connect gaps. Endpoint trimming or waypoint exclusion does not anonymize retained coordinates, names or extension data. Limits include 12 MiB per file, 150,000 combined points and 25 MiB raw input.

FAQs

Does simplification preserve every original point?

No. It removes intermediate records according to tolerance; inspect the result before export.

Does trimming anonymize a GPS track?

No. Other retained coordinates, names and extension data may still identify locations or people.