Hidden Symbol
Finder.

Hidden Unicode characters are invisible or non-standard code points embedded in text: zero-width spaces, directional control marks, variation selectors, and special punctuation. They are not visible when reading but affect how systems parse, process, and render it.

The most common cause is copying and pasting from rich text editors, PDFs, web pages, or AI generated content. Word processors, design tools, and some AI models often insert typographic characters (smart quotes, em dashes) or invisible markers alongside readable text.

The tool detects invisible characters (zero-width spaces, directional marks, soft hyphens), non-standard spaces (non-breaking, thin, hair, ideographic), typographic punctuation (curly quotes, em and en dashes, ellipsis), and control characters (BiDi overrides, variation selectors, tag characters). Each is either removed or normalized to its standard ASCII equivalent.

No. Readable content (letters, numbers, and standard punctuation) is always preserved. Only invisible formatting characters are removed and typographic symbols are normalized to ASCII equivalents.

Yes. Letters from any language (Cyrillic, Arabic, Chinese, Hebrew, Japanese, and all others) are always preserved. Only hidden formatting characters are flagged. Toggle the Ignore non-Latin letters checkbox to control whether non-ASCII letters appear in the scan results.

When checked (default), letters from any language are excluded from the scan: Cyrillic, Arabic, Chinese, and other non-Latin letters won't be flagged. Uncheck it to flag any non-ASCII character, including letters from other languages. Cleaning always preserves letters regardless of this setting.

Some older detectors treat unusual Unicode characters as a minor signal. Modern systems rely primarily on linguistic and statistical patterns, not metadata or encoding quirks. Cleaning is text hygiene, ensuring your content behaves predictably across platforms.