Character Counter - Word & Keyword Density Tool
Paste any text and instantly see characters, words, sentences, paragraphs, estimated reading time, and keyword density for SEO or social media limits.
All counting happens locally in your browser; nothing is sent to our servers.
Word Count
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How to Use This Calculator
Paste a block of text, then optionally add a keyword or phrase to check density. Click Calculate or let the live updates run for an instant summary of characters, words, sentences, paragraphs, and estimated reading time.
- Paste your text into the main textarea—no registration or upload is required.
- Review the counts as they update: characters, words, sentence count, paragraph count, and reading time.
- Enter a keyword or phrase to see how often it appears and how dense it is relative to the total word count.
- Use the Clear Text button to reset the fields or the Reset button to clear both fields and the keyword input.
Methodology
The calculator counts visible Unicode characters, removes whitespace to derive the character-without-spaces total, and splits text on whitespace proxies to count words. Sentences are detected with a regex that respects punctuation and common sentence boundaries, while paragraphs are computed by grouping non-empty newline blocks.
Reading time assumes a 200 words-per-minute pace and rounds up to the nearest whole minute, making it easy to estimate how long your audience might need to read.
Keyword density multiplies the number of keyword occurrences by the number of words in the keyword, divides by the total words, and converts the result to a percentage for faithful density tracking.