1. Load a JPEG
Start with the synthetic EXIF demonstration file or inspect one of your own JPEG images. Files are handled locally; no image content is sent to our servers.
2. Re-encode and compare
Canvas re-encoding typically removes JPEG EXIF segments, but changes pixels through lossy encoding. The output is a new JPEG rather than a metadata-only edit.
Test only local copies. Keep your original. A missing EXIF block does not prove that no visual, embedded or external identifying information remains.
Loading synthetic EXIF sample…
Before
What is measured?
The browser code scans JPEG markers and checks for an APP1 segment with the Exif identifier. That establishes the presence of a JPEG EXIF payload; it does not parse every metadata tag, detect every possible metadata standard or verify that a file is anonymous. The synthetic demonstration includes a fake device make, model, description and timestamp, not a real person or real coordinates.
Most browser canvas JPEG exports do not preserve source EXIF marker segments, so the output typically reports “No EXIF APP1 segment detected.” The file size, image appearance and compression may also change. That is why the tool calls this re-encoding, not a lossless metadata scrubber.
How to share a photo more carefully
- Check the image's visible content for names, signs, faces, ID numbers or recognizable surroundings.
- Consider that photo metadata may expose a time, camera or GPS location. Not all photos include GPS.
- Use a metadata-removal workflow suitable for the format. Verify the exported copy rather than assuming the process succeeded.
- Remember that the social network or messaging service may add its own metadata or retain other information after upload.
Read our EXIF privacy guide, try the metadata stripping tool, or follow the photo sharing checklist.