String Length Counter — Free Online Tool
Count string length with characters, bytes, Unicode points, and whitespace analysis.
0Total Characters
0Without Spaces
0Bytes (UTF-8)
0Unicode Points
0Lines
0Spaces
About String Length Counter
The String Length Counter provides detailed information about your text including character count, byte size, Unicode length, and whitespace analysis. Perfect for developers checking string lengths for database fields, API limits, or buffer sizes.
Get instant feedback on total characters, characters without spaces, byte length (UTF-8), Unicode code points, and more. All calculations happen in your browser for complete privacy and instant results.
How to Use String Length Counter
- Type or paste your string/text into the editor.
- View real-time counts for characters, bytes, and Unicode length.
- Check length with and without whitespace.
- Use for database field validation, API limit checks, or development.
Key Features
Total character count (with spaces)
Character count without whitespace
Byte length (UTF-8 encoding)
Unicode code point count
Line count and line break detection
Real-time updates as you type
100% client-side for privacy
Developer-friendly statistics
Frequently Asked Questions
What's the difference between characters and bytes?
Characters are symbols you see (letters, numbers, emoji). Bytes are how computers store them. English letters = 1 byte, but emoji and special characters can be 2-4 bytes.
Why is Unicode length different?
Unicode length counts code points. Some emoji use multiple code points (like flags or skin tones), so Unicode length may differ from visual character count.
Does it count spaces and line breaks?
Yes! The tool shows total length (with spaces) and length without any whitespace. You can see both counts side-by-side.
Is this useful for programming?
Yes! String length is crucial for database fields, API limits, form validation, and understanding memory usage. The byte count helps with buffer sizes.
Is my text saved or uploaded?
No. All counting happens locally in your browser. Your strings never leave your device, ensuring complete privacy.