- Is my photo uploaded to a server?
- No. This tool runs entirely in your web browser using the File API and Canvas API. Your photo bytes never leave your device. The GPS coordinates are fetched from your device's location services and are also never transmitted anywhere. You can even use this tool offline after the page loads.
- Why is my GPS accuracy low, and can I still use the tool?
- Accuracy depends on your device and environment. On a phone with GPS enabled outdoors, you typically get 3β15 meters. Indoors or on a desktop using Wi-Fi positioning, accuracy may be 20β200 meters or more. You can still stamp the coordinates β just be aware they may not be pinpoint precise. The accuracy figure is optionally displayed on the stamp so viewers know the margin of error. You can also type coordinates manually if you know the exact location.
- What image formats are supported?
- Any format your browser can decode works: JPEG, PNG, WebP, GIF, and on supported devices, HEIC/HEIF (Apple devices running Safari). The output is always a JPEG file (quality 95%), which keeps file sizes small while preserving full photo detail. If you need PNG output, the canvas export format can be changed in the source β but JPEG is the universal standard for geotagged photos.
- Does this tool add GPS data to the EXIF metadata of the photo?
- No β this tool burns the GPS information visually onto the image pixels (a "stamp"), which is permanent and visible. It does not write to EXIF metadata. If you need EXIF geotag writing (hidden metadata that apps and maps can read), you need a dedicated tool. The visual stamp approach is useful when you want the location to be visible in the photo itself, such as for documentation, evidence, or social sharing.
- Can I use this on mobile to geotag photos taken with the camera?
- Yes. On mobile browsers, tapping the upload area gives you the option to take a photo directly with the camera or choose from your gallery. After taking or selecting the photo, press "Get My Location" to fetch your current GPS position, then download the stamped image. This works in Chrome for Android and Safari on iPhone/iPad.