PNG Metadata Viewer
PNG files store metadata in text chunks (tEXt, iTXt, zTXt) and can carry embedded EXIF and XMP. This viewer reads every chunk locally and surfaces what is hiding inside, including AI generation data that image tools write. Analyzed locally in your browser - nothing is uploaded.
What PNG metadata reveals
PNG is the format AI image generators use most, and they write a lot into it. A single PNG can contain the full prompt, the model, the seed, and even the entire node graph used to create it. Reading the chunks tells you exactly what a shared PNG gives away.
- tEXt / iTXt / zTXt text chunks
- ComfyUI "workflow" node graphs
- Automatic1111 "parameters" (prompt, seed, model)
- Embedded EXIF and XMP
- Unknown ancillary chunks, listed so nothing hides
Frequently Asked Questions
About reading EXIF, GPS, AI traces and other embedded metadata.
PNG uses text chunks called tEXt (plain), zTXt (compressed) and iTXt (international/UTF-8). It can also embed an eXIf chunk with EXIF data. This tool reads all of them.
Tools like ComfyUI and Automatic1111 save the generation recipe into PNG text chunks by default, so the image is reproducible. That recipe includes your prompt and settings unless you strip it.