ClickyFix

String Length Calculator

Free

Calculate string length, byte sizes, code points, and grapheme clusters for any text.

Length Metrics

Characters
0
Code Points
0
Graphemes
0
Words
0

Byte Sizes

UTF-8
0 B
0 bytes • Web standard, variable width
UTF-16
0 B
0 bytes • JavaScript internal encoding
UTF-32
0 B
0 bytes • Fixed width (4 bytes per char)

Understanding String Lengths

Characters: The JavaScript string length (UTF-16 code units). Some emojis count as 2.

Code Points: Actual Unicode characters. Each emoji is typically 1 code point.

Graphemes: Visual characters as humans perceive them. Combined emojis (like family emojis) count as 1.

Example: The emoji "👨‍👩‍👧" is 1 grapheme, 5 code points, and 11 characters in JavaScript.

How to Use the String Length Calculator

  1. Paste or type your text in the input area above
  2. View the character count, code points, and grapheme clusters instantly
  3. Check byte sizes for different encodings (UTF-8, UTF-16, UTF-32)
  4. Copy all statistics to clipboard for your reference

Features

  • Character count (JavaScript length)
  • Unicode code points count
  • Grapheme clusters (visual chars)
  • UTF-8 byte size calculation
  • UTF-16 and UTF-32 byte sizes
  • 100% free and private

Common Use Cases

  • Checking database field sizes for Unicode text
  • Calculating storage requirements for strings
  • Understanding emoji and special character lengths
  • API character limit validation
  • Debugging Unicode handling in applications

Why String Length Matters

Understanding string length is crucial for developers working with Unicode text, especially when dealing with emojis, international characters, and database storage.

Different programming languages and databases count string length differently. JavaScript uses UTF-16 code units, while databases might use bytes or code points. This tool helps you understand all these different measurements.

For example, the emoji "👨‍👩‍👧‍👦" (family) appears as one character visually, but in JavaScript it has a length of 11 characters due to how UTF-16 encodes it with combining characters.