Clean AI Text
Remove Hidden Unicode Characters & Invisible Spaces
Remove invisible Unicode characters such as Zero-Width Spaces (ZWSP), Non-Breaking Spaces (NBSP), and Byte Order Marks (BOM). Quickly fix formatting problems caused by copied text from AI tools, PDFs, Word files, or web pages.
What Are Hidden Unicode Characters?
This feature is included in the AI Text Cleaner via the "Remove Hidden Characters" checkbox.
Hidden Unicode characters are invisible symbols embedded within text. Although they are not visible, they can disrupt code execution, affect SEO indexing, and break document formatting.
- Zero-width space (ZWSP,
\u200B) - Non-breaking space (NBSP,
\u00A0) - Zero-width non-joiner (
\u200C) - Zero-width joiner (
\u200D) - Word joiner (
\u2060) - Byte order mark (BOM,
\uFEFF)
Before & After Cleaning
Text copied from AI platforms or PDFs often contains hidden “ghost” characters that interfere with formatting:
Original: Hello•World (includes an invisible separator)
Cleaned: Hello World (all hidden characters removed)
Why Remove Invisible Characters?
- Avoid Code Errors: Prevent issues like "illegal character" errors in JavaScript, Python, or SQL.
- Improve SEO Accuracy: Ensure search engines properly index your visible content.
- Clean AI-Generated Text: Remove hidden formatting traces left by tools like ChatGPT or Claude.
- Normalize Spacing: Replace non-breaking spaces with standard web-friendly spacing.
Frequently Asked Questions
How do hidden characters appear in text?
They are typically introduced when copying from rich-text environments such as Microsoft Word, Google Docs, PDFs, or AI chat tools. These characters help with formatting internally but can cause issues in plain-text use cases.
Will this tool change fonts or styling?
No. It only removes non-visible Unicode characters. Your visible content—letters, numbers, and punctuation—remains unchanged.
Can invisible characters break code?
Yes. Even a single hidden character inside a variable name or string can cause code to fail or behave unexpectedly, making debugging difficult.
Ready to clean your text? Paste it into the input box above and remove hidden characters instantly.