🎓 Computer Science • Programming
100% Client-Side Privacy
Unicode Converter (Code Points & UTF-8 Bytes)
Converts international text, emojis, and symbols into Unicode code points, UTF-8 hexadecimal bytes, and HTML entities.
Unicode Code Points & Multi-Byte UTF-8 Sequences
Visualizes UTF-8 variable-length byte patterns (1 to 4 bytes per character)
Presets:
| Glyph | Code Point | Category | Length | UTF-8 Hex Bytes | HTML Entity |
|---|---|---|---|---|---|
| H | U+0048 | Basic Latin | 1 Byte | 48 | H |
| e | U+0065 | Basic Latin | 1 Byte | 65 | e |
| l | U+006C | Basic Latin | 1 Byte | 6C | l |
| l | U+006C | Basic Latin | 1 Byte | 6C | l |
| o | U+006F | Basic Latin | 1 Byte | 6F | o |
| U+0020 | Basic Latin | 1 Byte | 20 |   | |
| 🚀 | U+1F680 | Emoji (Transport & Map) | 4 Bytes | F0 9F 9A 80 | 🚀 |
| U+0020 | Basic Latin | 1 Byte | 20 |   | |
| π | U+03C0 | Greek & Coptic | 2 Bytes | CF 80 | π |
| U+0020 | Basic Latin | 1 Byte | 20 |   | |
| € | U+20AC | Currency Symbol | 3 Bytes | E2 82 AC | € |
| U+0020 | Basic Latin | 1 Byte | 20 |   | |
| 漢 | U+6F22 | CJK Unified Ideograph | 3 Bytes | E6 BC A2 | 漢 |
What is Unicode and UTF-8?
Unicode is the universal character encoding standard covering virtually every writing system and emoji in the world. UTF-8 is its dominant variable-width byte encoding on the web.
Formula & Step-by-Step Calculation
UTF-8 uses 1 to 4 bytes per character based on Unicode code point range.
Variable-length backward-compatible encoding with ASCII.
Worked Step-by-Step Examples
Example 1
Code point of Rocket emoji 🚀
Solution: U+1F680 (UTF-8 Bytes: F0 9F 9A 80)
• 4-byte UTF-8 sequence for astral code point 128640
Common Real-World & Academic Use Cases
- ✓ Internationalization (i18n) character handling
- ✓ Database UTF-8 / UTF-8MB4 collation debugging
- ✓ HTML character entity escaping
How to Use the Unicode Converter (Code Points & UTF-8 Bytes)
1
Type Characters or Emojis
Input text.
2
Read Code Points
Inspect U+XXXX notation and UTF-8 bytes.
Frequently Asked Questions
Q: Why is UTF-8 dominant over UTF-16 on the web?
UTF-8 is 100% backward-compatible with ASCII and uses only 1 byte for English text, saving bandwidth.