Zero-Width Space Checker (U+200B)

Zero-Width Space (U+200B) is a Unicode code point that carries no visual width but exists in the character stream. Browsers use it as a hint for where long words can be broken across lines, but when it ends up in source code, configuration files, or data fields it causes hard-to-diagnose failures:

• YAML keys that look identical but never match because one contains a ZWSP.
• Python if variable == "expected" comparisons that always return False.
• Shell variable names that shadow each other silently.
• Database queries where the column name "looks right" but the join returns empty.
• Environment variable names in .env files that are never loaded.

Wikipedia article titles, content management systems, and some AI code generators are known to insert ZWSPs around punctuation or at word boundaries. The Invisible Unicode Character Detector finds ZWSP along with all other invisible characters in one pass, shows the exact count, and returns a cleaned copy.

How to check for zero-width spaces

1. Open the Invisible Unicode Character Detector and paste your text into the input area.
2. Click Analyze. If ZWSP (U+200B) is present, it appears in the results table with name "Zero-Width Space (ZWSP)" and a Medium risk badge.
3. Copy the Cleaned text — all zero-width spaces are removed while visible characters are preserved exactly. Paste the clean version into your code, config, or database.

Related invisible character tools

• Full invisible character scan — all 30+ invisible character types
• Detect all zero-width characters — ZWSP, ZWJ, ZWNJ, BOM
• Remove invisible characters — clean output focused
• Hidden character finder — general sweep