String Length Calculator
Count characters, words, lines, sentences, and byte size with one clean text metrics dashboard.
Characters
0
Characters (no spaces)
0
Words
0
Lines
0
Paragraphs
0
Sentences
0
UTF-8 bytes
0
UTF-16 bytes
0
Longest word
None yet
Average word length
0.00
Target checker
What This String Length Tool Measures
Byte-aware metrics
Check UTF-8 and UTF-16 sizes for payload constraints and data contracts.
Writing metrics
Track words, sentences, paragraphs, and average word length in one view.
Snippet planning
Quickly assess headline, social, and meta description limits.
Common Use Cases
- ✓SEO drafts
Check whether titles and descriptions fit common SERP display limits.
- ✓API validation
Estimate string byte size before sending requests or saving records.
- ✓Editor workflows
Measure copy length without opening a separate writing app.
Frequently Asked Questions
Does this string length calculator count bytes?
Yes. It reports UTF-8 bytes and UTF-16 bytes, which is useful when APIs or databases enforce byte-level limits rather than simple character counts.
Can I use this for SEO title and meta checks?
Yes. The calculator includes quick limit badges so you can compare your text against common short-form copy targets.
Why are characters and bytes different?
Some characters use more than one byte in UTF-8 and UTF-16. That matters for storage, transport, and backend validation.
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