Strip zero-width and other invisible Unicode characters that hide inside pasted or AI-generated text and quietly break things.
Invisible Character Remover
🔒 Nothing you enter is sent anywhere or stored. All processing happens in your browser.
How it works
Some characters occupy no visible space yet still live inside your text. Zero-width spaces and joiners are used in scripts like Arabic and in emoji sequences; byte-order marks get prepended by editors; soft hyphens hide inside words copied from justified documents; and directional marks control text flow. Copy-pasting from chat models, websites, or PDFs frequently drags these along for the ride.
They are harmless to look at but troublesome in practice. They break exact-match search, corrupt code and JSON, inflate character counts, defeat form validation, and can even be used to fingerprint or watermark a piece of text. This tool scans for fifteen of the most common invisible characters, deletes every one, and shows you a named breakdown so you can see precisely what was hiding.
All detection and removal run locally in your browser. Nothing is uploaded, which matters when you are checking whether a sensitive document has been tampered with or tagged.
Examples
A username that “looks” taken but is not → paste it here to reveal a hidden zero-width space padding it out.
JSON that fails to parse for no reason → remove a leading byte-order mark and it loads cleanly.
Text you suspect is watermarked → the breakdown shows how many zero-width joiners were inserted.
Common invisible & zero-width characters
Character
Code point
Name
Typical source
U+200B
Zero-width space
Copy-paste, AI output, web pages
U+200C
Zero-width non-joiner
Rich-text editors, some scripts
U+200D
Zero-width joiner
Emoji sequences, some scripts
U+FEFF
Byte-order mark / ZWNBSP
File encoding, exports
U+2060
Word joiner
Typesetting, pasted text
U+00AD
Soft hyphen
Word processors, PDFs
U+00A0
Non-breaking space
HTML ( ), AI/web copy
These characters are legitimate in specific contexts (emoji use zero-width joiners, for instance), but in ordinary English text pasted into a form, a spreadsheet, or code, they cause silent bugs: mismatched strings, wrong word counts, and broken searches. Removing them gives you clean, predictable plain text.
Frequently asked questions
How can characters be there if I cannot see them?
These code points render with zero width or as formatting hints rather than glyphs. Your eyes skip them, but software still stores and processes each one, which is why they cause subtle bugs.
Which characters does it remove?
It targets zero-width space, non-joiner and joiner, the byte-order mark, word joiner, soft hyphen, left/right-to-left and Arabic letter marks, the Mongolian vowel separator, invisible math operators, and the combining grapheme joiner.
Could removing them break emoji or non-Latin text?
Zero-width joiners are used inside some emoji and complex scripts, so if you are working with those specifically, review the breakdown before copying. For ordinary English text, removal is always safe.
Does it change visible characters or spacing?
No. Only the listed invisible code points are deleted. Regular spaces, letters, and punctuation are untouched.
Is my text kept private?
Yes. Everything runs in your browser and nothing is sent anywhere.
What are invisible characters?
They're real Unicode code points that take up no visible space — zero-width spaces, joiners, byte-order marks and similar. You can't see them, but software can: they break string comparisons, inflate character counts, split words in search, and cause bugs in code and CSV files.
Where do invisible characters come from?
Most often from copy-pasting out of web pages, PDFs, chat apps or AI tools, and from text that has passed through rich-text editors. Some fonts and languages also use zero-width joiners legitimately, but in plain English text they're almost always unwanted.
Do AI tools add invisible characters?
It can happen — text pasted from AI chat interfaces sometimes carries zero-width or non-breaking spaces picked up from the web page. This tool removes them so the text is clean plain text.
Will this remove normal spaces or line breaks?
No. It targets zero-width and unusual space characters and converts non-breaking spaces to normal ones. Ordinary spaces and line breaks are preserved.
How do I know if my text has invisible characters?
Paste it here — the tool reports how many invisible characters it found and removed. A non-zero count means they were hiding in your text.