Cuts and multi-clip
The video is split into segments at every cut and clip boundary, and each segment is aligned to GPS on its own.
GPS Sync
Sync GPS to your footage
Video, Apple Maps and telemetry in one window.
Introducing GPS Sync
Line up a GPS track with action-cam footage — even when the video is cut or split across many clips.
Native macOS app built with SwiftUI, AVFoundation and MapKit. No account, no data collection. Offline apart from Apple Maps tiles.
Three ways to sync
Drag the track into place, Sync by Time from the recording clocks, or read a GoPro’s embedded GPS.
Any track format
GPX, KML, KMZ, NMEA, DJI .SRT or a Tripper .trip in; the synced track out again, remapped to your video.
Most overlay apps line up one clip with one GPS file using a single fixed offset. Trim the video, or let the camera chapter the recording, and that offset stops working. GPS Sync splits the video into segments and syncs each one independently.
Sync it once,
then go exploring.
A segment for every piece
Cuts
Mark a splice and align each side on its own; the removed time drops out of each segment’s alignment.
Multiple clips
GoPro chapters and stop-start files form one timeline, each clip its own segment.
Sync by Time, then fine-tune
One click matches recording time to the GPX timestamps; a per-segment Shift slider (up to ±300 s) does the rest.
Multiple clips, multiple data tracks
Layered data tracks
GPX, .trip, DJI .SRT and embedded GPS side by side. Where several have data, the topmost track wins.
Clip lanes
Every video file is a block on its own row: slide, trim in place, snap to playhead, markers and edges.
Split, duplicate, group
Split clips or tracks at the playhead, duplicate onto a new row, group items to move them as one.
Study your route
Apple Maps, flat or 3D
Standard, Hybrid or Satellite, 3D terrain, and a Follow mode that chases the marker.
Profile graph
Speed, elevation and heart rate, with zoom, scrub and a live playhead. Bridged heart-rate gaps are drawn lighter.
Real IMU telemetry
A Tripper .trip brings barometric elevation, true slope, g-force, lean and heart rate measured on the ride.
Overlays, exactly how you want
Visual editor
Place, resize and colour elements on a 16:9 canvas, with guides, layer order, snapping and rulers.
Nineteen elements and an EV cluster
Speed, altitude, slope, compass, G-force, lean, heart rate, mini-map, graph — plus power, RPM, battery and ride mode on CAN-equipped e-motos.
Presets and design layers
Built-in and saved presets, metric or imperial, free text in any installed font, lines, boxes and gradients.
Take it anywhere
Video with overlays
Source, 4K or 1080p in H.264, HEVC or ProRes, GPU-accelerated on Apple silicon with audio kept.
Green-screen or transparent
A chroma-key background or a ProRes 4444 alpha channel for compositing in your editor.
Remapped track
GPX, KML, KMZ or NMEA rebased to the video timeline, markers as waypoints, scoped to in and out points.
Ready to sync?
GPS Sync for macOS. Built for cut and multi-clip footage.
Requires macOS 26 on Apple silicon