Mark Cleaner: Local Tool to Remove AI Watermarks and Metadata
VraserX · x · 2026-08-18
Mark Cleaner is an open-source, local-first tool built on Codex designed to clean removable traces from AI-generated content. It targets:
- Text: Invisible Unicode characters (e.g., zero-width spaces), bidi controls.
- Images: EXIF/GPS data, XMP generator fields, creator metadata.
- Documents: Author properties, custom properties, hidden text carriers.
Technical Boundaries
- It distinguishes between "deterministic carriers" (like file metadata) and "embedded signals" (like SynthID).
- For credentials like C2PA, it supports local inspection but preserves them by default to maintain verifiability.
- Emphasizes local processing with no file uploads required.
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