Sentence Counter

Count sentences, see your average sentence length, and spot the longest and shortest ones.

FREE TOOL · PRIVATE · NO SIGN-UP

Counts update with every keystroke. Your text stays 100% in your browser.

Sentences
0
Words
0
Avg words / sentence
0
Reading time
0 sec
Longest sentence
0 words
Shortest sentence
0 words

📝 How to Use This Sentence Counter

  1. 1.Paste or type. Essays, blog posts, stories, scripts — every number updates live as you edit.
  2. 2.Check your average. Around 15–20 words per sentence reads easily. If your average climbs past 25, look for sentences you can split.
  3. 3.Find the monster sentence. The longest-sentence box quotes your biggest one — if it runs past 40 words, it probably wants to be two sentences.
  4. 4.Mix your rhythm. Great writing alternates: a long flowing sentence, then a short one. Bang. The contrast is what keeps readers moving.

❓ FAQ

Is my text private when I use this sentence counter?

Yes. The counting happens entirely in your browser — your text is never uploaded, stored, or sent anywhere. You can close the tab and it's gone.

How does this tool count sentences?

A sentence ends at a full stop, question mark or exclamation mark. Text after the last punctuation mark also counts as a sentence if it contains words. Note that abbreviations like "Dr." or "U.S.A." contain full stops, so they can add extra counts — for formal documents, treat the number as a close estimate.

What is a good average sentence length?

For clear, readable writing, an average of about 15–20 words per sentence is a good target. Averages above 25 often feel heavy to read, and mixing short punchy sentences with longer ones keeps readers engaged.

Is this sentence counter free?

Yes — 100% free with no sign-up and no word limit. Check an essay, a blog post, a script or a full chapter.