Invisible Character Detector
Find invisible Unicode characters such as zero-width spaces, BOM, and nonbreaking spaces. See their names, positions, and code points.
What this tool does
Find invisible Unicode characters such as zero-width spaces, BOM, and nonbreaking spaces. See their names, positions, and code points.
Where this tool is useful
Find characters that change copying, searching or source code unexpectedly.
Example or format details
In “hello” followed by U+200B, the checker reports a ZERO WIDTH SPACE even when nothing appears between letters.
How to use Invisible Character Detector
- 1
Enter or paste the text into the labeled fields.
- 2
Adjust the fields and options, then select Run tool.
- 3
Inspect the actual result. Copy the text or download the generated file when appropriate.
Privacy and processing
Entered content and chosen files are processed locally in your browser. No conversion request is sent to a freedropper server.
Common questions
What can I use this for?
Find characters that change copying, searching or source code unexpectedly.
What does the tool accept?
Enter or paste the text into the labeled fields.
What should I check before using the output?
Check the accepted input, output format and settings before reusing the result. Find characters that change copying, searching or source code unexpectedly.
Does my input leave my device?
The utility runs in your browser. Selected content is not transmitted to a freedropper conversion service.
How can I reuse the result?
Copy the output or use the download control when the tool produces a file. Check the target application accepts the resulting syntax or file type.