Converters.net

Invisible Character Detector

Detect & count invisible characters in text using our free online invisible character viewer tool.

Invisible characters and spaces will be highlighted. Useful for detecting fake usernames and more.

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Count regular spaces as invisible characters?
Invisible Character Summary will appear below:

Invisible Character Detector

Quickly find and remove hidden characters that break layout, forms, or code.

Privacy‑first. Runs entirely in your browser. No uploads.

🚀 Launch the Tool ✨ View All Converters

How it Works

  1. 1

    Paste or type your text

    Insert your text into the editor. The tool accepts text copied from web pages, PDFs, social media, documents and more.

  2. 2

    Instant Detection

    Invisible characters (ZWSP, NBSP, ZWJ, tabs, etc.) are automatically highlighted so you can spot them immediately.

  3. 3

    Live Counters

    Get counts for invisible characters, words, characters, sentences, and lines. This data updates live as you enter text.

  4. 4

    Copy & Restart

    Copy your text or clear the input box using the buttons to reuse the tool.

Step‑by‑Step Tutorial – Detect invisible letters instantly.

  1. Open the tool above and paste or type your content.
  2. Scan for highlighted characters and review the counter panel.
  3. Fix by deleting or replacing unwanted symbols.
  4. Copy the cleaned result with the Copy button.

Why use the Invisible Character Detector?

Here are some use cases for the invisible character detector.

They also can corrupt code or data files.

  • Hidden characters can silently cause layout glitches and failed imports. Remove them to prevent this.
  • Scammers may impersonate reputable tradespeople on social media using hidden characters.
  • People may inflate character count on school or work essays using invisible characters.

Features

Real‑Time Highlighting

Our tool highlights invisible characters while you type for instant results.

Unicode Breakdown

Our tool lists each type of invisible symbol used with its Unicode code point, so you know exactly what is in the text.

Instant Copying

One‑click copy for when you have removed any invisible characters. Perfect for code editors or and email clients.

Privacy‑First

Everything runs in your browser for enhanced privacy.

Extra Tips

  • Use the toggle at the bottom of the tool to choose if spaces are counted as invisible characters.
  • To scan a text file, open it and copy the contents. Next, paste them into the tool input box.
  • If the detector does not function as expected, refresh the page.
  • If having issues when pasting another language, try translating to English first.

FAQ

What is a zero‑width space (ZWSP)?

ZWSP (U+200B) is invisible and allows line breaks. It’s useful in typography but can cause issues when inserted unintentionally.

How to find NBSP in my text?

Paste into the editor. NBSP (U+00A0) will be highlighted and counted. Use the summary to locate occurrences.

Is my content private?

Yes. Detection is performed locally in your browser; no data is sent to servers.

Can it detect tabs, hair spaces, and other whitespace?

Yes. The tool detects many whitespace and control characters including tabs, hair/thin spaces, ZWJ, and ZWNJ.

Completely free to use forever!

  • Designed to handle 50,000+ characters instantly without any sign-up.
  • Edit the text and remove characters as many times as you like.
  • Our tool is free to use on both desktop and browser.

Other Invisible Character Detector Tools

Converters.net Tool

  • Coverage: 15+ invisible characters
  • Privacy: Local (browser)
  • Speed: Live highlighting
  • Reporting: Unicode code points & counts

TextFixer

  • Coverage: Basic whitespace cleanup
  • Privacy: Server-side
  • Speed: Fast but uploads required
  • Reporting: Limited

CharCounter

  • Coverage: Limited characters
  • Privacy: Server-side
  • Speed: Average
  • Reporting: No code point breakdown

Convert Town

  • Coverage: Inconsistent across tools
  • Privacy: Uploads may be required
  • Speed: Average
  • Reporting: Minimal

Looking for an alternative to TextFixer or Convert Town? This tool is privacy-first and tuned for live feedback.

Want to embed our tool on your site?

Doing so is simple and completely free. Copy the snippet below. It includes a credit link which creates a backlink to this page.

Glossary of terms

Zero‑Width Space (ZWSP)
Invisible breakpoint for wrapping. U+200B.
Zero‑Width Joiner / Non‑Joiner
Controls joining for scripts. U+200D / U+200C.
Non‑Breaking Space (NBSP)
Prevents line breaks at its position. U+00A0.
Word Joiner
Prevents line breaks between characters. U+2060.
Whitespace
Any spacing characters (space, tab, newline) used to separate words.
ASCII
Basic 7-bit character set (0-127). Many control characters originate here.
Control Characters
Non-printing characters that control text flow (e.g., CR, LF, TAB).
Carriage Return (CR) & Line Feed (LF)
CR (U+000D) and LF (U+000A) indicate line breaks on different systems.
Tab
Horizontal tabulation (U+0009) used for indentation or column alignment.
Soft Hyphen
Suggests a hyphenation point but is invisible unless a line break occurs. U+00AD.
Byte Order Mark (BOM)
U+FEFF at start of files can indicate UTF-8/16 encoding and may be invisible.
Surrogate Pair
Two UTF-16 code units representing characters outside the Basic Multilingual Plane.
Combining Marks
Characters that modify the preceding character (accents); visible rendering depends on font.
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