What are zero-width invisible characters?

Zero-width characters (like U+200B zero-width space, U+200C non-joiner, and U+FEFF byte order mark) occupy zero visual pixels in text rendering but exist as bytes in memory. They can hide malicious scripts or create invisibly distinct identifiers.

What is a homoglyph attack?

A homoglyph attack occurs when an attacker replaces Latin letters with visually identical characters from other alphabets (such as Cyrillic or Greek) to create misleading URLs or malicious package names.

Is my text analyzed confidentially?

Yes. 100% of Unicode iteration and codepoint analysis executes client-side in your web browser.

Unicode & Invisible Character Inspector

Inspect Unicode codepoints, detect zero-width invisible spaces, expose homoglyph typosquatting risks, and sanitize text with 1-click cleaning.

100% Client-Side Privacy

Total Characters 0

UTF-8 Bytes 0 B

Invisible Characters 0

Homoglyph Risks 0

Input String 0 chars

Index	Glyph	Codepoint	Category	UTF-8	Character Name & Description
Type or paste text above to inspect characters.

Frequently Asked Questions

How do zero-width characters compromise security?

Adversaries use zero-width characters to watermark leaked documents, bypass spam and profanity filters, and hide tracking identifiers inside URLs and user tokens.

What is Unicode Normalization (NFC vs NFD)?

In Unicode, accented characters can be represented either as a single precomposed character (NFC: é as U+00E9) or as a decomposed letter followed by a combining accent (NFD: e U+0065 + ´ U+0301). This can cause string equality checks (===) to unexpectedly fail.

Can this tool remove invisible characters safely?

Yes. The "Strip Invisible Characters" button removes zero-width spaces, joiners, directional overrides, and BOM characters while preserving normal visible text and line breaks.

Is my text private?

100% private. All processing runs in your browser tab with zero external API calls.