Where do invisible characters come from?

Most commonly from copying text out of PDFs, Word documents, websites, or chat apps. Some are inserted deliberately as watermarks; most arrive by accident during formatting conversions.

Will this damage my text?

The cleaner only removes characters classified as invisible or formatting-only. Visible text, emoji, and meaningful whitespace like newlines are preserved.

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Invisible Character Cleaner

Detect and remove zero-width and hidden Unicode characters from text.

Source Buffer0 chars

Output ResultBuffer clean

Output will appear here...

About this tool

The Invisible Character Cleaner finds and strips zero-width spaces, zero-width joiners, byte-order marks, and other invisible unicode characters that sneak into text from copy-paste, PDFs, and rich editors. It shows exactly what was removed and where.

These characters cause real bugs: broken string comparisons, failed password matches, corrupted CSV imports, and mysterious lint errors. Running pasted content through this cleaner before using it in code or data pipelines prevents hours of debugging.

How to use

1Paste text that may contain hidden or zero-width characters.
2Invisible characters are stripped automatically as you type.
3The badge shows how many characters were removed.
4Copy the cleaned output.

Frequently asked questions

They're valid unicode codepoints with no visible glyph — like zero-width space (U+200B) or the byte-order mark (U+FEFF). They survive copy-paste and are impossible to spot by eye, but code treats them as real characters.

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