Snap2Map

Photograph any trailboard or printed map, drop a few reference pairs, and watch your live GPS position glide across the photo. Works offline, with OpenStreetMap context when you are connected.

Step 2 Create reference pairs

Tap “Start pair” and select a pixel on the photo followed by its real-world location on the map.

Step 1

Import map photo

Choose a sharp, well-lit image of your trailboard or printed map. Snap2Map keeps only an optimized copy on your device.

Tip: Mobile browsers let you take a new photo or pick one from your gallery when you tap the button above.

No calibration Add at least two reference pairs to calibrate the photo.
Import a map photo to get started.

Reference pairs

Pixel (x, y) World (lat, lon) Residual Actions