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ASCII / Unicode inspector
Codepoint-by-codepoint breakdown of any string — UTF-8 bytes, UTF-16 units, HTML entities, CSS escape and Unicode block.
ⓘ Cette entrée est rédigée en anglais par les développeurs.
/tools/ascii-unicode takes any string and lists every codepoint with its encoding details:
- Codepoint as
U+XXXXand decimal. - UTF-8 byte sequence (1 to 4 bytes per codepoint).
- UTF-16 code units (surrogate pairs decoded).
- HTML entity in decimal (
😀) and hex (😀) form. - CSS escape (
\1F600). - Unicode block name (Basic Latin, Latin-1 Supplement, CJK Unified Ideographs, Emoticons, etc.).
Designed for debugging weird text — a zero-width space pasted into a config file, a Cyrillic look-alike in a domain, a combining diacritic that won’t normalise, or that one emoji that turns into a surrogate-pair mess in your backend log. Runs entirely in your browser.