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Clean Text Checker AI

Paste text and instantly check for hidden characters and formatting problems, then clean it with one click. Everything runs in your browser (no uploads).

Category: Text · URL: /tools/clean-text-checker-ai.html
Cleaning options
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Privacy: runs locally in your browser. No uploads, no tracking scripts.

How to use

Use this tool to scan text for formatting issues and optionally clean it.

  1. Paste your text into the input box.
  2. (Optional) Adjust what to fix: invisibles, whitespace, smart quotes, dashes, etc.
  3. Click Check for a report, or Clean to apply fixes.
  4. Copy the cleaned text from the output box.
Keywords this page targets (natural cluster): clean text checker ai, clean up pasted text, remove hidden characters from text, zero width space remover, remove non breaking spaces, normalize whitespace online, fix smart quotes to straight quotes, remove weird characters from copy paste, clean text for word, remove extra spaces and line breaks, convert em dash to hyphen, ellipsis to three dots converter, text sanitizer tool, remove control characters from text, clean text from pdf copy paste, check text for invisible characters, normalize line endings, trim whitespace each line, remove trailing spaces, clean formatting from email text
Secondary intents covered: Find and remove invisible/zero-width characters that break search, code, or forms, Normalize whitespace and line breaks after pasting from PDFs, Word, or web pages, Convert smart quotes/dashes/ellipsis into plain ASCII for compatibility, Detect common formatting issues (NBSP, multiple spaces, repeated punctuation), Prepare text for Microsoft Word, CMS editors, or Markdown, Copy a cleaned version quickly without changing the original formatting too much, Troubleshoot why a string won't match due to hidden characters, Reduce text noise before running it through another tool (case converter, slug generator)

FAQ

Is this “clean text checker ai” tool private?

Yes. It runs in your browser and doesn’t send your text to a server.

What hidden characters does it remove?

It can remove zero‑width characters (ZWSP/ZWJ), BOM (FEFF), word joiner (2060), NBSP, and most control characters.

Will it change my line breaks?

It normalizes Windows/Mac line endings to \n and can collapse excessive blank lines (optional).

Does it fix smart quotes and dashes?

Yes. It can convert curly quotes to straight quotes and normalize en/em dashes to a plain hyphen.

What’s the difference between Check and Clean?

Check shows a preview report without changing your output; Clean applies the fixes and outputs the cleaned text.

Why does copied text from PDF/Word look weird?

Pastes often include NBSP, zero‑width characters, and typographic punctuation that can break matching and formatting.

Can I use the output for Word or a CMS editor?

Yes. The cleaned output is plain text, designed to paste cleanly into Word, forms, and editors.