Convert Unicode to Code Points

A unique number Unicode assigns to each character. A is U+0041 (decimal 65), é is U+00E9 (decimal 233), 🌍 is U+1F30D (decimal 127,757). Unicode has 1,114,112 code point slots (U+0000 to U+10FFFF) across 17 planes; about 150,000 are currently assigned to characters.

HTML supports two entity formats: hex &#xHHHH; and decimal &#DDDD;. For 🌍 you can write 🌍 or 🌍. Both render as 🌍. Useful when your editor doesn’t handle Unicode well, or when you want to embed characters not in your font set. Pick the HTML entity output format and the tool emits the right syntax.

CSS escapes use backslash + hex digits: content: "1F30D"; renders as 🌍. Useful in ::before and ::after pseudo-elements where you want to inject specific characters from CSS. The tool’s CSS format emits the right form. Variable hex length: CSS expects 1-6 hex digits.

Two forms. ES2015 curly-brace: 'u{1F30D}' – clean syntax for any codepoint up to U+10FFFF. Surrogate pair: '🌍' – required for non-BMP characters in pre-ES2015 JavaScript or for source code that needs to work without ES2015. The tool emits the curly-brace form for clarity; if you need surrogate pairs specifically, encode the high/low pair manually.

Python string literals support uHHHH for BMP characters (4-digit hex) and UHHHHHHHH for non-BMP (8-digit hex). The tool emits the 8-digit form which works for any codepoint. So 🌍 becomes 'U0001F30D' in Python source. Python 3.6+ also has the N{name} form for named characters but it requires the Unicode character database.

The 17 Unicode planes are grouped. BMP (Basic Multilingual Plane, U+0000-U+FFFF) covers most living languages – Latin, Cyrillic, Greek, CJK, etc. SMP (Supplementary Multilingual Plane, U+10000-U+1FFFF) covers emoji and historic scripts. SIP (Supplementary Ideographic Plane, U+20000-U+2FFFF) covers rare CJK ideographs. SSP (Supplementary Special-purpose Plane, U+E0000+) covers tag characters and variation selectors. The grid shows which plane each character belongs to.

U+10FFFF (1,114,111 decimal). That’s the Unicode maximum – codepoints above this are not valid Unicode. The tool rejects them in reverse direction with the error “Codepoint N exceeds U+10FFFF”. The vast majority of currently-assigned codepoints are well below this (mostly in the BMP under U+FFFF).

Tokenize by whitespace/comma, then each token is parsed independently with format auto-detection. So U+0041 B u{43} 68 decodes to ABCD (mix of U+, HTML entity, JS escape, decimal). The detected format is reported in stats. HTML entities are special-cased: any input containing &# is treated as one big HTML entity stream.

No. All conversion runs in your browser using codePointAt and String.fromCodePoint. Open DevTools → Network and confirm zero requests fire – even when you Convert or Download. Safe for proprietary text, secrets, or anything you’d rather not send to a third-party converter.

Yes. Total bundle is about 18 KB. Load once, disconnect, keep using. Pure JavaScript using standard string APIs – no remote dependencies. Useful for processing data on airgapped systems or in offline environments.