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Clean, normalize, and format text with various text transformation operations.
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Text Cleaner
Welcome to our

Text Cleaner

- a free tool to clean, normalize, and format text with various transformation operations. Perfect for preparing ASCII art, cleaning copied text, removing AI watermarks, or normalizing data for further processing.
Metric Before After Change
Characters 0 0
Lines 0 0
Non-whitespace 0 0
Size (bytes) 0 0
Presets
Spaces & Tabs
Line Breaks
Normalize Characters
Remove Characters
Letter Case
HTML & Encoding
Nuclear Options

What is this tool?

Text Cleaner helps you clean, normalize, and format text with various transformation operations. Whether you're preparing ASCII art for display, cleaning copied text from different sources, or normalizing data for further processing, this tool provides a simple interface with powerful cleaning options.

How to use it

  1. Paste or type your text in the Input tab.
  2. Select the cleaning operations you want from the Options panel below.
  3. Click Clean Text to process your text.
  4. View the result in the Result tab with before/after statistics.
  5. Use Copy to copy the cleaned text to your clipboard.

Common use cases

  • Normalizing line endings when moving text between Windows/Mac/Linux
  • Cleaning whitespace from ASCII art for consistent rendering
  • Removing duplicate lines from lists or data files
  • Converting tabs to spaces for consistent formatting
  • Removing HTML tags and entities from copied web content
  • Cleaning non-printable characters from corrupted text
  • Removing invisible AI watermarks and tracking characters from generated text
  • Preparing text for further processing or analysis

Who is this for?

  • ASCII Artists - Clean and prepare text art for consistent display across platforms
  • Developers - Normalize code snippets, clean config files, and fix encoding issues
  • Content Creators - Remove hidden formatting when copying text between applications
  • Data Analysts - Clean and normalize datasets before processing
  • Writers & Editors - Strip unwanted formatting from documents and emails
  • Privacy-Conscious Users - Remove AI watermarks and tracking characters from text

Remove AI watermarks and hidden tracking

Some AI services and text platforms embed invisible characters in their output to track and identify the source of the text. These "watermarks" use zero-width characters (like zero-width spaces, joiners, and invisible separators) that are invisible to the naked eye but can be detected by software.

Use the "Remove invisible/zero-width characters" option to strip these hidden markers from your text. This removes all zero-width spaces, word joiners, soft hyphens, byte order marks, and other invisible Unicode characters that may be used for fingerprinting or tracking purposes.

Privacy first

All text processing happens locally in your browser. Your text is never sent to our servers. No accounts, no logins, no tracking. Clean your text with complete privacy.

Frequently Asked Questions

A text cleaner is a tool that removes unwanted characters, normalizes formatting, and transforms text for specific purposes. It can strip HTML tags, remove invisible characters, normalize whitespace, convert character encodings, and much more. This is especially useful when copying text from different sources like websites, PDFs, or word processors where hidden formatting characters often get included.

To remove AI watermarks, use the "Remove invisible/zero-width characters" option. AI services often embed invisible Unicode characters (like zero-width spaces, joiners, and word joiners) to fingerprint and track their generated text. This option strips all these hidden markers while preserving the visible content of your text.

Invisible characters are Unicode characters that exist in text but don't display visually. This includes zero-width characters like Zero-Width Space (U+200B), Zero-Width Joiner (U+200D), and Word Joiner (U+2060), as well as control characters, soft hyphens, and the Byte Order Mark (U+FEFF). While some have legitimate uses in text rendering, they can also be inserted as hidden watermarks or tracking markers. This tool detects and removes them.

Statistical watermarks are a different type of AI watermarking that works by subtly influencing word choices during text generation, creating detectable patterns without inserting any extra characters. Unlike invisible character watermarks, statistical watermarks cannot be removed by any text cleaning tool because they're embedded in the word choices themselves. This tool removes invisible character-based watermarks, but statistical watermarks would require rewriting the text entirely.

Yes, absolutely. All text processing happens entirely in your web browser using JavaScript. Your text is never sent to any server. There are no accounts, no logins, and no tracking. You can even use this tool offline once the page is loaded. Your data stays on your device.

Use the "Clean for ASCII Art" preset button. This automatically selects the right options: normalizing line endings, removing trailing spaces, stripping non-ASCII characters, removing emojis, and cleaning up HTML/BBCode tags. This ensures your ASCII art only contains standard ASCII characters (32-126) that display correctly in any text environment.

"Normalize" means converting variations of the same thing to a single standard form. For example: Normalize line endings converts Windows (CRLF), Mac (CR), and Unix (LF) line breaks all to Unix-style (LF). Normalize spaces converts multiple consecutive spaces to a single space. Normalize quotes converts "smart quotes" to straight ASCII quotes.

Text copied from websites, PDFs, emails, or word processors often contains hidden characters, inconsistent formatting, and invisible markup. These can cause problems when pasting into code editors, databases, or other applications. Cleaning text ensures consistent formatting, removes unwanted characters, and makes your text work reliably across different platforms and systems.

Yes! Since all text processing happens in your browser using JavaScript, the tool works offline once the page has loaded. You can bookmark this page and use it anytime, even without an internet connection. Your text never leaves your device.