How to use
- Enter text, or hex values separated by spaces.
- Click the conversion direction you want.
- Copy the result to use it.
🎯 Use Cases
- Inspect network packets or binary data
- Simple data encoding/decoding
- Check byte values while debugging
Example
Input
Hello 한글
Output
48 65 6c 6c 6f 20 ed 95 9c ea b8 80
Result of [Text → Hex]. Each ASCII character (Hello and the space) is one byte, while the Korean characters '한' and '글' are encoded as 3 bytes each in UTF-8, giving 12 hex byte pairs in total.
UTF-8 bytes and hexadecimal
Characters are encoded to UTF-8 bytes, each shown as two hex digits.
| Concept | Details |
|---|---|
| UTF-8 bytes | Storage unit per character — 1 byte for ASCII, 3 for Korean |
| Output format | Two hex digits per byte, space-separated (e.g. EA B0 80) |
| Example | A → 41; 가 → EA B0 80 |
| Common uses | Comparing hex dumps, protocol and file-format analysis, encoding debug |
FAQ
- What encoding is this based on?
- It's based on UTF-8 bytes. Multi-byte characters like Korean are shown as several hex byte pairs.
- Does it accept both uppercase and lowercase hex?
- Yes, it's case-insensitive.
- Is my text sent to a server?
- No. Conversion happens entirely in your browser.
- Does it accept 0x-prefixed values?
- Output is space-separated 2-digit hex — strip the 0x prefix before pasting.
- Why is a Korean character three hex pairs?
- UTF-8 encodes Korean syllables in 3 bytes (6 hex digits).
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