String Length Counter
Text Tools
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About This Tool
Free, private, serverless string length counter. Count characters, words, bytes (UTF-8), lines, sentences, and paragraphs instantly. Supports bulk per-line analysis — paste multiple lines and get individual counts. No data leaves your browser — 100% client-side.
How to Use
- Type or paste text into the input field
- View real-time counts: characters, words, bytes, lines, sentences, paragraphs
- Enable Per-Line Breakdown for individual line analysis
- Copy results or use for validation
Frequently Asked Questions
How are bytes counted?
Bytes are counted using UTF-8 encoding, which varies per character (1-4 bytes). ASCII characters use 1 byte, while emoji or CJK characters may use 3-4.
What counts as a word?
Words are counted by splitting on whitespace. Multiple spaces count as one separator.
Does it support per-line analysis?
Yes, enable the 'Per-Line Breakdown' toggle to see character, word, and byte counts for each line individually.
What are the use cases?
Checking tweet/SMS character limits, validating form input lengths, counting words for articles, analyzing text encoding size, and database field length verification.
Guides & Tutorials
In-depth guides for every tool. Learn how to process your data privately, for free, right in your browser.
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