ENCODING TOOL · CLIENT-SIDE
Hex Encoder & Decoder
Encode text to hexadecimal or decode hex strings back to readable text. Runs entirely in your browser — nothing is uploaded.
Input
Output
About Hex Encoding
What is Hex?
Hexadecimal uses 16 characters (0-9, a-f) to represent each byte as two digits.
Common uses
Color codes, memory addresses, file signatures, network debugging, and data inspection.
Size comparison
Hex doubles the byte count. Base64 increases by 33%. Choose based on your use case.
Frequently Asked Questions
What is hexadecimal encoding?
Hexadecimal encoding represents each byte of data as two hexadecimal digits (0-9, a-f). It is commonly used in programming, networking, and data analysis to represent binary data in a human-readable form.
When should I use hex encoding?
Hex encoding is useful for representing binary data, debugging network packets, working with color codes in CSS/HTML, inspecting file contents, and encoding data for APIs that require hex strings.
Is hex encoding the same as Base64?
No. Hex encoding uses 16 characters (0-9, a-f) and doubles the size of input. Base64 uses 64 characters and increases size by about 33%. Hex is more human-readable, while Base64 is more space-efficient.