{"schema":"cpc-unicode-answer-v1","question":"What is a Unicode noncharacter?","answer":"This is a permanently reserved noncharacter code point, although it remains a scalar value. Code points: U+FFFF. It is not intended for public textual interchange and may be rejected by software. No fallback is suggested. Font coverage, shaping, and application acceptance were not tested, so those results are unknown.","unicodeVersion":"18.0.0","purpose":"general","citation":"Do not invent a platform-support claim from this data.","page":"/answers/what-a-unicode-noncharacter-is/","markdown":"/answers/what-a-unicode-noncharacter-is.md","sample":"￿","codepoints":[{"codepoint":"U+FFFF","name":null,"displayLabel":"￿","warnings":["noncharacter"],"explanations":[{"id":"noncharacter","title":"Unicode noncharacter","behavior":"This is a permanently reserved noncharacter code point, although it remains a scalar value.","limitation":"It is not intended for public textual interchange and may be rejected by software.","fix":"Remove or replace it with an explicitly intended character in exchanged text.","source":"https://www.unicode.org/reports/tr44/","alternatives":[],"evidenceTier":"standards-informed-editorial","evidence":{"behavior":"standards-informed","compatibility":"not-tested","repair":"editorial-guidance"}}]}],"comparison":null,"graphemes":{"status":"available","method":"runtime-intl-segmenter","unicodeDataVersion":"runtime-unknown","count":1,"segments":[{"text":"￿","utf16Offset":0,"codepoints":["U+FFFF"]}]},"normalizationChanged":{"NFC":false,"NFD":false,"NFKC":false,"NFKD":false},"normalizationUnicodeDataVersion":"runtime-unknown","targetCompatibility":{"status":"unknown","evidenceTier":"not-tested","purpose":"general","explanation":"No OS, font, browser, application, field policy or rendering engine was tested. Unicode validity and segmentation do not establish actual display or acceptance."}}