PNG metadata remover

PNG files hide metadata in text chunks: AI prompts and workflows, author names, software and timestamps. Drop PNGs below to read every chunk, then remove them while the image data stays bit-for-bit identical.

  • Files stay on this device
  • Pixels are never re-encoded
  • Up to 50 files at a time
  • No account, no cost
IN

Drag and drop your images here

JPG, PNG, WebP, GIF, HEIC, AVIF · each file up to 25.00 MB and 40 MP · 50 files per session

Edit MetadataRemove EXIFClean AI Data

OUT

Reads C2PA · EXIF · XMP · IPTC · prompts

Where PNG keeps its metadata

A PNG is a sequence of chunks. The image itself lives in IHDR, PLTE and IDAT; everything else is optional. The chunks AI Label Remover removes are:

  • tEXt, zTXt and iTXt — free-form text, compressed text and international text. Stable Diffusion WebUI writes a “parameters” chunk here; ComfyUI writes “prompt” and “workflow” JSON.
  • XMP packets stored in iTXt, including IPTC and AI source declarations.
  • eXIf — EXIF data, including GPS when an app copied it from a photo.
  • caBX — C2PA Content Credentials.
  • tIME (last-modified time) and dSIG (digital signature).

What stays so the image looks the same

Transparency (tRNS), gamma and chromaticity (gAMA, cHRM), the sRGB flag and the embedded ICC profile (iCCP) all affect how the picture displays, so they are kept. Animated PNGs keep their acTL, fcTL and fdAT chunks, so APNG animations still play.

Because the IDAT data is copied rather than recompressed, the washed file is pixel-identical to the original — usually a little smaller, since the text chunks are gone.

Protecting AI prompts and workflows

If you share images made with Stable Diffusion, Forge or ComfyUI, anyone can drag the PNG back into the same tool and recover your exact prompt, seed, model and node graph. How Stable Diffusion and ComfyUI hide prompts in PNGs shows what is stored. Washing removes it all, while the “Raw metadata” tab lets you copy the prompt first if you want to keep it for yourself.

What is removed and what stays

PNGChunks

Washed out

  • tEXt
  • zTXt
  • iTXt (prompt
  • workflow
  • XMP)
  • eXIf
  • caBX (C2PA)
  • tIME
  • dSIG

Left in place

  • IHDR
  • PLTE
  • IDAT
  • tRNS
  • gAMA
  • cHRM
  • sRGB
  • iCCP
  • acTL/fcTL/fdAT
  • Orientation

From tagged to clean in four moves

There is nothing to install and no account to create. The page itself does the work.

  1. Drop the files in

    Add as many as 50 JPG, PNG, WebP, GIF, HEIC or AVIF images. The browser opens them locally; no copy goes anywhere.

  2. Read the report

    Each file is walked block by block — EXIF, XMP, IPTC, C2PA, text chunks — and you see what it says about place, people, time and AI.

  3. Press “Wash all images”

    The metadata blocks are cut out of the byte stream. Image data is left alone, and the result is read again to prove the fields are gone.

  4. Save the clean copies

    Save files one at a time, or grab every washed image in one ZIP archive.

PNG metadata questions

Will removing PNG metadata change the colors?

No. Color-related chunks — sRGB, gAMA, cHRM and iCCP — are kept, and the IDAT image data is copied unchanged.

Does it work with transparent PNGs?

Yes. Transparency data (tRNS or the alpha channel inside IDAT) is part of the image and is never touched.

Can I keep the prompt somewhere?

Copy it from the “Raw metadata” tab before washing. Once removed, metadata cannot be restored from the washed file.

Does it also work for Midjourney or DALL·E PNGs?

Yes. Whatever text, XMP or C2PA data those services embed is removed the same way. See hiding Midjourney and DALL·E prompts.

Keep reading

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