Invisible Character Detector
Detect and remove zero-width spaces, BOM markers, invisible Unicode characters, and hidden formatting. Free invisible character finder.
About Invisible Characters
Invisible Unicode characters are characters that take up no visible space but exist in text data. They can cause hard-to-debug issues in code, break string comparisons, create security vulnerabilities (like URL spoofing with right-to-left override), and cause text processing to behave unexpectedly.
This tool detects 38 types of invisible characters including zero-width spaces, byte order marks, directional overrides, non-breaking spaces, soft hyphens, and mathematical invisible operators.
How to Use Invisible Character Detector
Open Invisible Character Detector
Navigate to Invisible Character Detector in your browser — no installation or sign-up required.
Enter your data
Type, paste, or upload the content you want to process into the input area.
Configure options
Adjust any available settings to customize the output to your needs.
Get your result
The result appears instantly. Copy it to your clipboard or download it as a file.
Frequently Asked Questions
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