Show HN: Unmarker.it – Client-Side Tool to Disrupt Invisible AI Watermarks https://ift.tt/UmTA6wV

Show HN: Unmarker.it – Client-Side Tool to Disrupt Invisible AI Watermarks I built a browser-only tool that disrupts invisible AI watermarks using Canvas, geometry, noise, and JPEG recompression. No backend, no uploads, no tracking. Pipeline: Shake – Random rotation (±0.5°) + slight zoom Stir – Low-amplitude RGB noise via getImageData Crush – JPEG recompression at ~0.85 quality Tested with SynthID (Google Gemini AI watermarking), and it remained undetected in all tests. Pipeline improvements? What would you add/change? Github: https://ift.tt/ompKDXg https://ift.tt/yz6taSG December 1, 2025 at 12:07AM