PNG Metadata Remover
Strip ancillary PNG text chunks, ComfyUI workflows, Stable Diffusion generation parameters, and embedded EXIF while copying IDAT pixel chunks bit-for-bit.
Drag and drop images here, paste from clipboard (Ctrl+V), or
Lossless in-browser metadata cleaning. Zero server uploads. Pixels remain bit-identical.
PNG Text Chunks Explained
PNG stores metadata in ancillary chunks including tEXt (uncompressed text), zTXt (compressed text), and iTXt (UTF-8 international text). Generative AI tools frequently embed full generation prompts, seeds, and node workflows into these chunks.
Lossless Chunk Filtering
Standard image converters unpack PNG pixels into an HTML canvas and re-compress them, which alters file size and introduces subtle compression changes. Clean leaves essential IHDR, PLTE, IDAT, and IEND chunks 100% untouched.