Free Sentence Counter
& Word Count Tool
Paste or type your text to instantly count sentences, words, paragraphs and characters, and see readability, voice and structure analysis as you write.
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How it works
Instant counts as you type
Paste your text
Drop in an essay, article or paragraph. Nothing is uploaded, everything is counted in your browser.
Read the analysis
See counts, average lengths, active versus passive voice and the reading grade level update live.
Send it onward
Move your text straight into the paraphraser, grammar checker or AI detector in one click.
Understanding your results
What each measurement tells you
Active vs passive voice
Active sentences ("the researcher tested it") read stronger than passive ones ("it was tested by the researcher"). Most tutors prefer mainly active writing.
Average sentence length
Around 15 to 20 words per sentence is comfortable for academic prose. Much longer and readers lose the thread.
Average word length
Longer average words usually mean denser vocabulary. If this climbs, check that you are not overcomplicating simple ideas.
Grade level
Based on the Flesch reading ease formula, this estimates the education level needed to read your text comfortably.
FAQ
Sentence counter questions
Is there a limit on how much text I can analyse?
No. There is no word or character limit, no account and no daily cap. Paste as much text as you like, as often as you like.
Is my text sent to a server?
No. Every count and calculation runs inside your own browser, so your writing never leaves your device.
How are sentences counted?
The tool counts sentence-ending punctuation, full stops, question marks and exclamation marks, while ignoring common abbreviations so totals stay accurate.
How is the grade level calculated?
It uses the Flesch reading ease formula, which weighs average sentence length against average syllables per word, then maps the score to a school level.
How accurate is the passive voice detection?
It looks for a form of "to be" followed by a past participle, which catches most passive constructions. Treat it as a helpful guide rather than a definitive grammatical judgement.
What counts as a paragraph?
Any block of text separated by a line break. Empty lines are ignored, so spacing between paragraphs will not inflate your count.
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