ASCII / Unicode Explorer

Browse Unicode names, inspect scalar values and compare UTF-8 bytes with UTF-16 code units.

About this tool

Unicode 18.0.0 reference data is included locally. Names and block names are the official English Unicode values, not translated descriptions. Search a name or alias within the chosen range (for example BLACK STAR or NUL), or enter one scalar as a character, decimal number, U+0041 or 0x41. Exact scalar lookup automatically leaves a range that does not contain it. Decimal digits mean a codepoint number; use U+0031 to inspect the character 1. A literal single space selects U+0020.

Unicode scalars are 0…10FFFF except D800…DFFF. An emoji may consist of several scalars: this inspector handles one at a time, not grapheme clusters or emoji sequences. Combining marks use a dotted-circle display; controls, format and invisible characters use visible placeholders. Those placeholders are not the actual copied character. Noncharacters, private-use and unassigned values are distinguished; font coverage and visual shape depend on your browser and fonts.

Choose a character using its button or arrow keys; Home/End select the ends of the current page. Tables render at most 128 values per page and scroll locally. The interval between page buttons gives codepoint bounds, not a result count. Names are official Unicode names/aliases, not meanings or glyph descriptions.

UTF-8 shows hexadecimal bytes. UTF-16 shows 16-bit code units, not bytes in a chosen endianness. Supplementary scalars have two surrogate units. Copy character copies the scalar itself; for controls, default-ignorable and unassigned/noncharacter values only Copy codepoint is offered. Codepoint always copies U+ notation. Only the raw query and selected range stay in this browser after navigation and reload; results, page and character selection are rebuilt. Reset returns to the full Unicode range and clears the query. Search updates while typing; Enter runs it immediately. Retry reloads unavailable local data. No external requests or uploads are needed.