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String Inspector

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String Inspector analyses any text and reports character count, byte length (UTF-8 / UTF-16), word count, line count, unique character count, and Shannon entropy. It lists every Unicode code point with its name, category, and script — making it easy to spot invisible characters, zero-width spaces, or mixed-script homoglyphs that could cause subtle bugs in password or URL handling.

Related: RegexText → HexWord Counter

Your files and inputs stay in your browser — nothing is uploaded or stored.

0

Characters

0

Bytes (UTF-8)

0

Words

0

Lines

0

Unique chars

0.000

Entropy (bits/char)

How to use the String Inspector

  1. Paste or type any string into the input — metrics update in real time.
  2. Check Character length vs Byte length — they differ for emoji and non-ASCII characters.
  3. Scroll the Codepoints table to see every Unicode character with its U+ code and name — invisible characters are revealed here.
  4. Check the Shannon entropy value — values above 3.9 suggest random or compressed data; low values indicate repetitive patterns.

Deep string inspection and analysis

The String Inspector analyses any input string and reports: length in characters, length in bytes (UTF-8), Unicode codepoints with their names, character frequency distribution, Shannon entropy, and line/word counts. Useful for debugging encoding issues, analysing passwords, and understanding non-ASCII content.