Hexes put a hex on it
jon.glass / Tools
or drop a file anywhere · stays on your machine
Ctrl+E endian · Ctrl+G go to · Ctrl+F search · F7 next difference

Open an evidence file to begin.

Choose a file, drop one here, or open the sample to try things out. Nothing is uploaded: Hexes reads the file in your browser, read-only, and hashes it as soon as it loads.

Disk images work too. Hexes only reads the parts you look at, so a multi-gigabyte file opens instantly.