▸ text-doctor

Paste text. Find hidden Unicode characters.

0 chars·0 words·
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What do we detect?

Zero-width

Characters with no visible width. Common in AI-generated or copy-pasted web text.

U+200B (ZWS), U+200C (ZWNJ), U+200D (ZWJ), U+2060 (WJ), U+FEFF (BOM)

Directional

Unicode bidi control characters. Can reverse or override text rendering direction.

U+200E (LRM), U+200F (RLM), U+202A–U+202E (LRE/RLE/PDF/LRO/RLO), U+2066–U+2069 (LRI/RLI/FSI/PDI)

Tag block

Tag characters in the U+E0000 block, used by AI text watermarking systems.

U+E0000–U+E007F (all flagged as TAG)

Soft hyphen

Invisible hyphenation hint. Affects line-breaking but is invisible in most renderers.

U+00AD (SHY)