Hidden Character Detector
Find invisible and suspicious characters in text: zero-width spaces, BOMs, soft hyphens, odd spaces, text-direction tricks and look-alike letters, then clean them.
- Free, no sign-up
- Runs in your browser
- Your data stays private
How to use the Hidden Character Detector
- Paste the text you want to check.
- Read the Reveal view, where hidden characters are shown as labels.
- Copy the cleaned version from the result box.
Why use this Hidden Character Detector
- Exact positionsEvery finding shows its line, column, code point and name.
- Security checksFlags text-direction overrides and words mixing Latin with Cyrillic or Greek.
- Reveal viewSee zero-width characters as visible labels inside your own text.
- One-click cleanRemoves invisible characters and turns odd spaces into normal ones.
Frequently asked questions
What is a zero-width space?
A character that takes no visible room but still counts as text. It can break searches, code and URLs.
What are look-alike letters?
Letters from other alphabets that look like Latin ones, such as Cyrillic a. Attackers use them to fake names and links.
Why would text contain hidden characters?
They often arrive from copied web pages, word processors, chat apps or content scraping.
More Text Formatting tools