Watermark Scanner – find and decode hidden characters in text and code Watermark Scanner, a free browser-based tool, lets users paste text or code to detect and decode hidden characters, including zero-width marks and AI-generated watermarks, with options to scan files and copy cleaned text. W Watermark Scanner hidden-character & AI-signal forensics ◐ Paste text or code 0 chars ↓ drop files to scan them all ↓ Scan Scan files… Copy cleaned text Try a sample: hidden payload · zero-width marks · clean text This tool is free and runs entirely in your browser. If it saved you time, you can chip in: ☕ Buy me a coffee