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 ev