AI text cleaner: remove invisible characters and em dashes

The AI text cleaner strips the hidden Unicode that ChatGPT, Claude, and Gemini leave behind, zero-width spaces, em dashes, curly quotes, and exotic whitespace, so your text reads like a human wrote it and does not break when you paste it. It runs entirely in your browser: nothing is uploaded, and the result is ready to copy in one click.

Your text

Character analysis

Visible

0

Invisible

0

Characters

0

Words

0

Detected characters

Paste text to analyze.

Hidden characters revealed

Your text appears here with every hidden character revealed.

Fix invisible removes zero-width and hidden characters and normalizes odd spaces. Fix all also converts em dashes, curly quotes, and the ellipsis glyph.

Everything runs in your browser. Your text is never uploaded or stored.

What is the ai text cleaner?

AI writing tools quietly insert characters you cannot see. Zero-width spaces (U+200B) and byte-order marks wedge between letters and break search, copy-paste, and code. Em dashes and curly quotes are the most recognizable visual tells that text was machine-written. This tool finds every one of them and removes or normalizes it, leaving your words untouched. It does not rewrite anything, it only cleans the invisible layer.

How to use it

  1. 1

    Paste your text

    Drop your AI-generated or copied text into the box.

  2. 2

    See what is hidden

    The revealed view shows every hidden character inline as a labeled chip, and the analysis panel counts each type.

  3. 3

    Pick a fix level

    Fix invisible characters removes zero-width and hidden characters. Fix all unicode also converts em dashes, curly quotes, and the ellipsis.

  4. 4

    Copy the clean version

    Copy the result. Your text is ready to paste anywhere.

Frequently asked questions

Related free tools

Last updated July 11, 2026

Write LinkedIn posts that sound like you

These tools clean up the surface. innernote helps you write the whole post in your own voice, from a raw thought to something worth publishing.

Start free