Hex Encoder / Decoder

Encode readable text into hexadecimal byte values or decode hex back into readable UTF-8 text.

How Hex works

Hexadecimal shows raw bytes using base 16. Each byte becomes exactly 2 hex digits, from 00 to ff. For example, A is byte value 41.

Type: Encoding Secret key: None Base: 16 Alphabet: 0-9 a-f Byte size: 2 digits Security: Not encryption

Options

Uppercase encoded output

Byte separator

Add 0x byte prefixes

Ignore spaces and separators when decoding

Accept 0x byte prefixes when decoding

Wrap encoded output

Encoding uses UTF-8 first, so ordinary text, punctuation, symbols, and emoji are converted into bytes before those bytes are shown as hex.

Output stats

Mode: Encode Input chars: 0 Input bytes: 0 Output chars: 0 Output bytes: 0 Hex digits: 0 Hex bytes: 0 Separator: Spaces Lines: 0

Hex is useful for inspecting bytes, hashes, binary data, and text encoding issues. It does not hide meaning, so anyone can read or reverse it with the right tool.

Input text

Output hex

Using This Tool: Guide & Notes Show guide

Hexadecimal writes each byte as two base-16 digits, making binary data easier to inspect and copy.

How to use it

Choose Encode to turn text into hex, or Decode to turn hex back into UTF-8 text.
Paste input into the input box.
Use separators, prefixes, and casing to match the format you need.
Copy the result once the byte grouping is clear.

Options and settings

Uppercase output switches a-f to A-F.
Separator controls whether bytes are spaced, compact, or split with another character.
0x byte prefixes are useful for programming-style byte lists.
Clean separators when decoding lets the tool accept spaces, line breaks, and common formatting.
Line wrapping keeps long hex output readable.

Notes

Two hex digits represent one byte.
Decoded bytes must form valid UTF-8 to display as normal readable text.

Hex Encoder / Decoder guide coming soon

The matching article is not published yet. This tool is ready now, and the guide can be added through the shared article template when it is written.

Guide coming soon

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A note from the team

We build these tools because we love cryptography, encoding, and making difficult ideas easier to explore. If they've helped you, even a small coffee means the world to the project. Thank you!

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