Magic-byte & MIME hint lab
Everything runs offline in your tab: pick a snippet of bytes (≤2 KiB sampled for speed) or paste a hex dump. Matches are heuristic — pairing with linux file, Apache Tika, or bespoke signature tables stays mandatory before acting on uploads.
1. Provide bytes
Spaces, commas and 0x / \x prefixes are stripped automatically. Larger files only sample leading bytes intentionally — upload nothing to our servers either way.
Leading bytes preview
— awaiting input —
Heuristic matches
Add bytes to see guesses.