Encode / Decode
Hex ASCII Converter
Convert text to hex bytes and hex bytes back to text.
About Hex ASCII Converter
Hex ASCII Converter lets you inspect bytes as text and text as hexadecimal values, which is useful when protocols, logs, or binary-adjacent formats expose raw byte sequences.
Common uses
- Decode hex from a network trace.
- Generate byte examples for documentation.
- Spot invisible characters such as spaces, tabs, and line breaks.
Good to know
Not every byte sequence is valid readable text. If the output looks unexpected, check the original encoding and whether the data is actually binary.
How to inspect bytes
Use hex when logs, protocols, or binary-adjacent formats expose byte values. Converting to text can reveal separators, spaces, tabs, and line endings that are hard to see otherwise.
Encoding expectations
ASCII only represents a limited character range. If the bytes represent UTF-8, binary data, or another encoding, some output may appear unreadable even when the source bytes are correct.
Common mistakes
Do not remove leading zeroes from byte values. Each pair of hex digits represents one byte, so dropping a zero changes the data.
Before you rely on the output
- Check whether the source expects a full document, a URL component, bytes, Unicode text, or another encoding boundary before copying the result.
- Privacy mode: inputs are processed locally in your browser and are not intentionally sent to an application server.