Text Tools
Calculate String Length
Measure a string with character, byte, word, line, and paragraph counts.
Last updated: May 29, 2026
Client-Side Processing
Input Data Stays on Device
Instant Local Execution
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Buy me a coffeeWhat is Calculate String Length?
Calculate String Length is a detailed counter for text and code snippets. It reports JavaScript string characters, Unicode code points, UTF-8 bytes, words, lines, non-empty lines, paragraphs, sentences, and whitespace counts.
How to Use Calculate String Length
1
Paste or type a string.
2
Review the live counters.
3
Copy the detailed report when needed.
Common Use Cases
- Checking database field length limits.
- Measuring SMS, metadata, or form input text.
- Comparing character count with UTF-8 byte size.
- Counting lines and paragraphs in pasted content.
Example Input and Output
A short two-line string returns character, word, and line counts.
Input
Hello
WorldStats
Characters: 11, Words: 2, Lines: 2Frequently Asked Questions
Why do characters and code points differ?
Some Unicode symbols use surrogate pairs in JavaScript strings, so string length and visible Unicode code point count can differ.
What are UTF-8 bytes?
UTF-8 bytes are the number of bytes needed to encode the string for most web APIs, files, and network payloads.
Is the string uploaded?
No. Counts are calculated in your browser.
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