Unicode Lookup

How to use it

1. Paste a character into the query box, or type its code point as U+1F600, 0x4F60, a decimal number or \u{...}.
2. The panel shows the character, its code point in hex and decimal, and its UTF-8 bytes.
3. UTF-16 code units are listed too — astral characters show both halves of the surrogate pair.
4. The block line names the Unicode range the character belongs to (ASCII, CJK, Emoji, and so on).
5. Use the search field to find common characters by name — try arrow, box or star.

Common use cases

• Debugging encoding bugs — check whether that suspicious glyph is a lookalike or a different code point entirely.
• Writing escape sequences — read the exact UTF-8 or UTF-16 bytes you need for a regex, a wire format or a config.
• Identifying symbols — find out which block a character comes from before choosing a font or fallback.
• Teaching encodings — show how one code point becomes one to four UTF-8 bytes.

Why it stays private

The lookup, byte conversion and name search all run locally against tables embedded in the page. Nothing is sent to any API.

FAQ

Q: Which input formats are accepted? A: A pasted character, U+XXXX, 0xXXXX, \u{XXXX}, or a plain decimal number. Surrogate-range values are rejected because they are not valid characters on their own.

Q: How complete is the name table? A: It is a curated list of around 160 common characters — punctuation, math, currency, arrows, box drawing, CJK punctuation and popular emoji — not the full Unicode name database.

Q: Does it handle emoji made of several code points? A: It inspects the first code point of what you paste. Sequences with modifiers or zero-width joiners will show the base character's details.