Upload PNG for chunk inspection & dimension repair
Drag & drop, paste from clipboard (Ctrl+V), or test with our verified corrupted-height CTF demo
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// Auto-CRC32 Height Bruteforce & Chunk Integrity Restorer
Inspect raw PNG chunk structures, validate CRC32 checksums, and auto-bruteforce the correct image height or width from stored IHDR checksums. Designed for solving CTF steganography challenges where flags are concealed by cropping image dimensions.
Drag & drop, paste from clipboard (Ctrl+V), or test with our verified corrupted-height CTF demo