Paste your text below.
Every stat updates live as you type — sentence count, word count, characters, reading time, and more.
Nothing is uploaded or stored — the count happens entirely on your device.
Start typing to see your top keywords.
One box, instant sentence stats.
No manual required — here's the entire flow.
Paste or type
Drop in an essay, article, script, or anything else — the field accepts as much text as you need.
Watch it count
Sentences, words, characters, and paragraphs update the instant you stop typing — no button to press.
Check the detail
Tap "Show advanced stats" for average sentence length, longest sentence, unique words, and keyword density.
Copy the summary
Use the copy button to grab a plain-text summary of every stat, ready to paste wherever you need it.
Three layers of detail, every time.
From a quick sentence count to a full breakdown, all in the same box.
Core counts
The essentials, calculated live as you write or paste — no page reload, no waiting.
Time estimates
Based on an average reading speed of 200 words per minute and a speaking pace of 130 words per minute.
Advanced detail
Deeper stats for writers, editors, and anyone checking content before it goes live.
Questions people actually ask.
The short answers — with the long ones one tap away.
What does the sentence counter measure?+
It counts sentences, words, characters (with and without spaces), paragraphs, and lines in the text you paste or type, then estimates reading and speaking time from the word count.
How are sentences detected?+
Sentences are detected by standard end punctuation — periods, question marks, and exclamation points — followed by a space or a line break. This works well for English and most languages that use similar punctuation.
How is reading time calculated?+
Reading time is estimated using an average adult reading speed of about 200 words per minute. It's a helpful estimate, not an exact figure, since actual reading speed varies by person and text.
How is speaking time calculated?+
Speaking time is estimated using an average speaking pace of about 130 words per minute, which is useful for timing speeches, presentations, or scripts.
Does it count sentences in languages other than English?+
Yes, as long as the text uses standard sentence-ending punctuation like periods, question marks, or exclamation points. Word and character counts work for any language.
Is my text stored or sent anywhere?+
No. Everything is calculated locally in your browser. Your text is never uploaded, logged, or stored by StudyWithSTEM.