Hidden Character Detector
Detect hidden and invisible Unicode characters in text. Zero-width spaces, BOM, direction marks.
Local Processing
Files are not uploaded to any server. All operations are performed in your browser.
Common Hidden Characters Reference
U+0000
NULL
U+200B
Zero Width Space
U+200C
Zero Width Non-Joiner
U+200D
Zero Width Joiner
U+200E
Left-to-Right Mark
U+200F
Right-to-Left Mark
U+202A
Left-to-Right Embedding
U+202B
Right-to-Left Embedding
U+202C
Pop Directional Format
U+202D
Left-to-Right Override
U+202E
Right-to-Left Override
U+2060
Word Joiner
There are 33 known hidden/invisible Unicode characters
How to Use
- 1
Paste your text into the input area.
- 2
Click 'Detect' to scan for hidden characters.
- 3
Review the detected invisible characters and their positions.
- 4
Remove or replace them as needed.
Use Cases
Security Check
Detect hidden characters that could be used for obfuscation or bypassing filters.
Debugging
Find invisible characters causing unexpected behavior in code or text processing.
Text Cleanup
Remove invisible characters to clean up copied text from websites or documents.
Related Tools
FAQ
What are hidden characters?▾
Hidden characters are invisible Unicode characters like zero-width spaces, BOM, and direction marks. They can cause display or security issues.
Why detect hidden characters?▾
Hidden characters can be used for homograph attacks, bypass filters, or cause unexpected behavior. Detecting them helps ensure text integrity.