Hex Viewer
Shows any file the way a programmer sees it: byte offsets, hexadecimal values and the ASCII column side by side, with paging, jump-to-offset, text and hex search, and automatic file-type detection from the magic bytes.
Runs 100% in your browser — your files never leave your device.
Read the full guide to this tool
Notes
- The first bytes of a file (magic bytes) usually identify its real type regardless of the extension: PNG starts with 89 50 4E 47, PDF with 25 50 44 46 (%PDF).
- Only the visible window is rendered, so files of any size open instantly.
- Runs 100% in your browser — your files and data never leave your device.
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