This page finds U+2060 WORD JOINER and removes it. The sample below hides one inside a URL — the link looks fine and 404s anyway. Everything runs in your browser — nothing is uploaded.
An invisible character that means "no line break here". It's the modern replacement for using U+FEFF (the byte order mark) as glue inside text: same effect, none of the BOM baggage. Zero width, zero visibility.
Typesetting and publishing tools that protect strings — URLs, product names, numbers with units — from wrapping. Copy such text and the word joiners come along. Some messaging apps and "fancy text" generators insert them too, and like all zero-width characters they're used for invisible watermarking.
Exactly what ZWSP breaks, minus the line-wrapping: URLs that 404 because getting isn't getting, database keys and usernames that look identical but aren't, failed search-and-replace, and interpreter errors pointing at visually clean lines. Because it's rarer than ZWSP, fewer tools highlight it — it slips through checks that catch the common ones.
VS Code: regex-search \u2060. Command line: grep -rP '\x{2060}' . — or paste the text above: each word joiner is flagged (WJ) and the cleaned output drops them.
Guides for the common cleanup jobs — what the source puts into your text, exactly what it breaks, and the tool preloaded with a demonstration:
AI-generated text · Text copied from Word / Google Docs · Text copied from a PDF · Pasted code that won’t run · CSV & spreadsheet data · Invisible watermarks · Many files at once (batch)
Dedicated pages for the usual suspects — what each one is, where it sneaks in from, the exact errors it causes, and how to find it in your editor:
Zero-width space (U+200B) · Non-breaking space (U+00A0) · Byte order mark (BOM) (U+FEFF) · Soft hyphen (U+00AD) · Smart quotes · Em dash (U+2014) · Narrow no-break space (U+202F) · Ideographic space (U+3000) · Zero-width joiner (U+200D) · Zero-width non-joiner (U+200C) · Word joiner (U+2060) · Right-to-left override (U+202E) · Left-to-right mark (U+200E) · Line separator (U+2028) · Variation selector-16 (U+FE0F) · Object replacement character (U+FFFC) · Hangul filler (U+3164) · Braille pattern blank (U+2800) · Ligatures · Minus sign (U+2212)
Страницы на русском — те же инструменты с переведёнными правилами и примерами под задачу:
Невидимые символы в тексте · Убрать невидимые символы · Почистить текст нейросети · Неразрывные пробелы в числах · Текст из Word · Код не запускается