👻

Invisible character detector

Find & remove hidden zero-width characters — locally in your browser

🔒 runs locally · no upload · no tracker

Find and remove invisible zero-width characters used to secretly mark or "fingerprint" text.

💡 Why this tool?

Hidden characters can invisibly mark text to trace leaks, or bypass filters. Once revealed, they can be removed.

Your benefits

  • ✓Detects zero-width and control characters
  • ✓Shows position and Unicode code point
  • ✓Provides a cleaned version to copy

🔧 How it works

  1. 1Paste the suspicious text
  2. 2Review the invisible characters found
  3. 3Copy the cleaned text

❓ Frequently asked questions

What are invisible characters?▼
Characters with no visible width (e.g. zero-width space U+200B). They can invisibly mark ("fingerprint") text or bypass filters.
Is my text sent anywhere?▼
No. The analysis runs entirely locally in your browser.
What does the tool do?▼
It shows detected invisible characters with position and code, and provides a cleaned version to copy.