Zero-Width Character Detector
Detect and remove invisible Unicode characters — zero-width spaces, joiners, BOM, and more.
Why do zero-width characters appear in text?
Zero-width Unicode characters are used legitimately for text rendering — joining or separating scripts, controlling line breaks, or marking byte order. They are invisible but can cause issues in code, databases, and search matching. They are sometimes used maliciously to watermark documents or bypass content filters. Common offenders include the Zero Width Space (U+200B), Zero Width Joiner (U+200D), and the Byte Order Mark (U+FEFF). This tool scans your text character-by-character, highlights every invisible character, and produces a clean version with all of them stripped. Nothing leaves your browser.
Private & free — this tool runs entirely in your browser.