A Browser Hex Viewer With Magic Number Detection and Virtual Scrolling

Drop any file, see its bytes. The classic hexdump -C format: offset, 16 hex bytes per row, ASCII column with dots for non-printable. Plus: magic number detection (PNG, JPEG, ZIP, PDF, RIFF, gzip), byte-level editing, and virtual scrolling so a 100MB file doesn't kill your browser.

Hex viewers are a category of tool where every developer has a favorite and none of them are in the browser. The terminal has hexdump, xxd, od. IDEs have plugins. But if you want to quickly inspect an unfamiliar file someone sent you, a zero-install web version is handy.

🔗 Live demo: