Online String Length
Calculate the length of any string or text. Get detailed character breakdown and encoding information.
String Length Analysis for Developers
Our string length tool is designed for developers and content creators who need precise character counts. Understanding string length is crucial for database field limits, API constraints, and text validation.
Characters vs Bytes
A string's character count and byte size often differ. ASCII characters use 1 byte, but Unicode characters (like emoji or non-English text) can use 2-4 bytes. Our tool shows both so you know exactly how much storage your text requires.
Use Cases
- Database validation: Check if text fits VARCHAR limits
- API requests: Verify payload size constraints
- Form validation: Ensure user input meets requirements
- SMS planning: Count characters for message segments
- Code debugging: Verify string manipulation results
Programming String Length
- JavaScript: str.length
- Python: len(str)
- Java: str.length()
- PHP: strlen($str) or mb_strlen($str)
- SQL: LENGTH(column) or CHAR_LENGTH(column)
Unicode Considerations
Be careful with emoji and special characters - they may count as multiple code points. For accurate length in multi-language apps, consider using grapheme cluster counting instead of simple character counting.