Hex String Converter — Text, Bytes, Colors, Endian

Multi-tool for hex strings: convert hex to text (UTF-8), to a byte array (Python / Go / C-style literals), to decimal, to binary; swap endianness; XOR two hex strings; chunk into n-byte groups for readability. Useful for binary protocol debugging, hash inspection, and embedded systems work.

How to use the Hex String Converter — Text, Bytes, Colors, Endian

Paste a hex string (whitespace and 0x prefixes are stripped automatically). Pick an operation. Some operations need an extra parameter: XOR needs a hex key (cycled if shorter than input), Chunk needs the group size.

Endianness swap reverses byte order — useful when reading little-endian wire data on a big-endian host or vice versa (network byte order is big-endian; x86 is little-endian).

About Hex String Converter — Text, Bytes, Colors, Endian

Hexadecimal is the universal middle layer between binary data and human-readable text. Every byte fits in two hex digits, making it the standard way to display hashes (SHA-256, MD5), network packets, memory dumps, encryption keys, and binary protocol traces. Working with hex involves a handful of common operations: turn the bytes into a higher-level interpretation (text, decimal, color), reformat for readability, or do bit-level manipulation (XOR, endian swap).

This tool gathers the operations into one place. The text conversion uses UTF-8 strict mode — invalid byte sequences raise an error rather than silently producing replacement characters, which catches encoding mismatches early. Multiple output formats (Python bytes, Go []byte, C array) make it easy to paste hex literals into source code in whatever language you’re working with.

Common use cases

• Binary protocol debugging — inspect wire bytes, swap endianness, chunk into fields.
• Hash analysis — see a hash in different formats / chunk sizes.
• Embedded development — generate C / Go byte literals for firmware constants.
• CTF challenges — XOR a ciphertext with a candidate key, see if plaintext emerges.