Trail Map Creator
Right-click any point in Google Maps and copy the coordinates.
Choose the tile grid size, then click each tile to upload a replacement. Existing 3×3 maps keep their current names; larger grids use names like R0C0, R0C1.
Or click the map with Marked Item tool active.
Your Icecast mount point URL. Leave blank if no live stream is active.
Aligns the live GPS position with your custom map tiles. Positive values shift the user pin north/east; negative values shift south/west. Typical: ±10 m.
Click Save & Download below to apply these values
and download an updated map_app_data.json.
Upload that file to your server's /data/ folder to push the change to all visitors.
Choose which controls and overlays are visible on the public map page.
This adds a visitor password gate to the public map. Leave the password fields blank to keep the current one.
The admin password is stored in this browser only (not in any public file).
If you change it here, you must also update $EXPECTED_PASSWORD in
save.php on your server to match — otherwise "Save to Server" will fail.
Three ways to persist your changes. Use whichever fits your workflow — all three keep your data safe.
Download JSON — saves a file to your computer; upload it manually to data/ on your server.
Upload to Server — writes directly to data/guidedtraildata.json via save.php; changes are live instantly. Requires the server-side script.
Save Locally — keeps the working copy in this browser only; use Publish or Save to Server to deploy.