Web Tools

Hex Dump Viewer

View text as a hex dump with offset, hex bytes, and ASCII columns — similar to xxd or hexdump. Supports text-to-hex and hex-to-text modes, configurable bytes per line (8/16/32), uppercase option, and UTF-8/ASCII encoding. Runs entirely in your browser — your data never leaves your machine.

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Published May 29, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Paste text and see it rendered as a hex dump with three columns: byte offset, hexadecimal representation, and ASCII printable characters. Non-printable characters appear as dots. Switch to hex-to-text mode to decode hex bytes back to text.

Features

Two modes: text → hex dump, and hex → text decode
Classic format: offset column (8 hex digits), grouped hex pairs, ASCII column
Bytes per line: configurable 8, 16, or 32 bytes per line
Encoding: UTF-8 (default) or ASCII mode
Uppercase toggle: display hex in upper or lowercase
Non-printable handling: characters outside 0x20-0x7E shown as dots
Byte count: displays total encoded byte count
Copy to clipboard: one-click copy of the full hex dump
5 examples: Hello World, ASCII art, JSON, Unicode, binary header
Private: runs entirely in the browser — no data transmitted

Use Cases

Inspecting binary file headers and magic bytes
Debugging text encoding issues (UTF-8 multi-byte sequences)
Analyzing network packet payloads
Verifying file content at the byte level
Learning about character encodings and hex representation