Hex opens any file and shows its raw bytes — offset, hex, and ASCII, side by side — so you can inspect a header, verify a magic number, or find a byte sequence. Nothing is uploaded.

Drop any file here.

or click to choose · read fully in your browser · no upload

Files are read entirely in your browser. Up to 64 KB is shown at once (2,048 lines); larger files display the beginning, and Find still scans the whole file to jump to the first match past the current view. Everything runs on your device.