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Invisible character detector
Find and remove zero-width spaces, hidden Unicode, and control characters.
Free to use · Runs in your browser · No signup
This tool works in your browser. Enable JavaScript to select files and create your download.
How to use Invisible character detector
- Paste text that behaves strangely, such as code, URLs, or copied form entries.
- Review each hidden character with its line, column, and Unicode code point.
- Copy the cleaned text with the hidden characters removed.
What you need
Nothing to upload. Type or paste directly into the tool; results update as you go.
Your result
A list of hidden characters and a cleaned copy of your text.
Before you start
Some invisible characters are intentional, such as joiners inside emoji or right-to-left marks in Arabic and Hebrew text. Review the list before removing everything.
Questions about Invisible character detector
How do I use Invisible character detector?
Paste text that behaves strangely, such as code, URLs, or copied form entries. Review each hidden character with its line, column, and Unicode code point. Copy the cleaned text with the hidden characters removed.
What does Invisible character detector produce?
A list of hidden characters and a cleaned copy of your text.
What should I check before using Invisible character detector?
Some invisible characters are intentional, such as joiners inside emoji or right-to-left marks in Arabic and Hebrew text. Review the list before removing everything.
Is what I type sent anywhere?
No. The calculation runs in your browser, and the text or numbers you enter are not uploaded or stored.