Remove content credentials from AI-generated files

Images, video and audio made with Claude, ChatGPT or Firefly carry a signed C2PA manifest that records which tool produced them. unmarking cuts that manifest out of the file. The media data is left byte for byte intact, and nothing is uploaded: the file is rewritten in your browser with WebAssembly.

Drop files here or browse Images, video and audio, up to 256 MB each

Good to know

Files never leave your browser. There are no uploads, no analytics and no third-party requests.
Only the credential is removed. Pixels, frames, audio samples and other metadata such as EXIF are untouched.
Invisible watermarks such as SynthID are a different mechanism and stay in place.
Works with JPEG, PNG, GIF, WebP, TIFF, DNG, HEIC, HEIF, AVIF, SVG, MP4, MOV, AVI, M4A, MP3 and WAV.