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/image

image bytes whose magic, Content-Type, Content-Length, and IHDR dimensions all agree

chaos chaos.catastrophic.io

GET /image

Image responses where the declared MIME type, magic bytes, embedded dimensions, chunk framing, or format metadata disagree with the actual content. Seven modes across PNG, JPEG, WebP, GIF, and AVIF test how image pipelines handle metadata-vs-bytes mismatches.

modes: mime-mismatch magic-byte-lie wrong-dimensions truncated-png webp-flag-lie gif-lsd-lie avif-ftyp-lie

full chaos docs →

control not.catastrophic.io

GET /image

image bytes whose magic, Content-Type, Content-Length, and IHDR dimensions all agree

full control docs →

Build against not.catastrophic.io/image, then flip the hostname to chaos.catastrophic.io to exercise the chaos.