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Sentence Counter

Count sentences and see average sentence length to improve readability.

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This tool runs in your browser. Nothing is uploaded.

About Sentence Counter

Sentence Counter splits your text into sentences and reports the count, the average length in words and your longest sentence, which is often the one worth rewriting.

For students, editors and anyone aiming for clear, readable writing.

What it does

  • Sentence count and average length
  • Longest sentence highlighted
  • Handles common abbreviations like "Dr." and "e.g."

How to use Sentence Counter

  1. Paste your text.
  2. Check the average and longest sentence.
  3. Edit long sentences and watch the numbers update.

Frequently asked questions

What is a good average sentence length?

Around 15 to 20 words reads comfortably for most audiences. Mix short and long sentences for rhythm.

Is my text saved or uploaded?

No. Counting happens in your browser and nothing is sent to our server.

Limits and privacy

Sentence detection is rule-based and may miscount unusual abbreviations.

Everything happens on your device, so your content never reaches our server.

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