Hex Editor & Viewer

A free browser-based hex editor and viewer. Enter text or drag-and-drop any file to see a classic hex dump display with three columns: hex offset addresses, hexadecimal byte pairs grouped by eight, and an ASCII character column showing printable characters (dots for non-printable bytes). Hover over any byte to highlight its corresponding hex and ASCII representation. See total file size, byte count, and export or copy the full hex dump. All processing is done locally with the FileReader API — your files never leave your browser.