Hex Encoder / Decoder
About this Tool
AllThatConverter's text-to-hex converter is a free online tool that converts text to hexadecimal (hex) representation and decodes hex back to text. It is essential for programming, network debugging, and binary file analysis. All processing runs locally in your browser with no uploads. Developers and security researchers can quickly inspect byte values in hex format. No registration required, completely free.
Processed safely on your device
Everything happens in your browser on this device. Your files are never sent to our servers—so you can use it with peace of mind.
How to Use
Enter or paste the text you want to convert into the input area.
Click 'Convert to Hex' or 'Decode to Text'.
The result appears instantly in the output area.
Click 'Copy' to save the result to your clipboard.
Key Scenarios & Use Cases
Programming and Debugging
View the byte-level hex representation of strings to debug encoding issues, buffer handling, or binary protocol parsing.
Network Packet Analysis
Convert hex dumps from Wireshark or other packet capture tools to readable text to inspect protocol content.
Color Code Conversion
Convert RGB values to hex color codes (e.g. #FF5733) for use in web design and styling.
Security and Cryptography Research
Inspect and convert hex representations of hash values and encrypted data in security research and study.
Frequently Asked Questions (FAQ)
Text is first converted to UTF-8 bytes, then each byte is expressed as a two-digit hex value. Multibyte characters (e.g. Japanese) produce multiple hex pairs per character.
Yes. You can choose space, colon (:), or no delimiter between hex pairs.
No. All conversion runs locally in your browser. Nothing is transmitted externally.
Yes. You can select whether hex digits A–F appear in uppercase or lowercase a–f.