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Sentence Counter
Paste or type any text to count sentences, words, characters and paragraphs in real time. The analysis stays in your browser, so you can check an essay, email, report or draft without uploading it.
Updates as you type
Up to 50,000 characters. Sentence boundaries are detected from punctuation and language-aware browser rules.
Ready. Add text to start counting.
Sentence breakdown
- Add text to see each detected sentence.
Your text is processed locally in this browser and is not sent to our server.
What is a sentence counter?
A sentence counter is a focused text-analysis tool that tells you how many complete sentences appear in a passage. Paste your text into the box above and the totals update immediately. Alongside the sentence count, this page shows word count, characters with and without spaces, paragraph count and average words per sentence. These measurements help you check a length requirement without opening a full writing application.
The tool treats a sentence as a meaningful segment that normally ends with a period, question mark or exclamation mark. It also recognizes common full-width punctuation used in Japanese and other writing systems. Modern browsers provide language-aware segmentation, which helps avoid obvious false breaks around familiar abbreviations and punctuation combinations. A compatible fallback is used when that browser feature is unavailable.
Use the result as a practical writing measurement, not as a grammar verdict. Dialogue, headings, bullet fragments, initials, unusual abbreviations and creative punctuation can create ambiguous boundaries. The numbered breakdown makes the decision visible: if one item has been split incorrectly, you can see exactly where the rule interpreted a new sentence.
How to count sentences online
You can check a short paragraph or a long draft in four quick steps.
1. Paste or type your text
Copy text from a document, email, notes app or web editor. You can also type directly in the input box and watch the totals update in real time.
2. Review the totals
Check the sentence, word, character and paragraph counts. Average words per sentence gives you a quick view of how dense the draft may feel.
3. Inspect the breakdown
Read the numbered sentence list when punctuation is unusual. It shows which pieces the counter recognized instead of hiding the result behind one total.
4. Copy or revise
Copy the statistics for your notes, or edit the text until it meets an assignment, publishing or readability target. Nothing needs to be downloaded.
How this sentence counter handles text
The browser applies language-aware segmentation first and uses a punctuation-based fallback where needed.
| Text case | How it is handled | What to expect |
|---|---|---|
| Standard endings | Periods, question marks and exclamation marks normally close a sentence. Repeated closing punctuation is kept with one sentence. | Ready. Really? Yes! = 3 sentences |
| International punctuation | Full-width marks such as 。！？ are recognized, allowing the same page to analyze supported Latin and CJK text. | 準備できました。始めますか？ = 2 sentences |
| Abbreviations and decimals | Language-aware rules try to keep common abbreviations, initials and decimal points inside the current sentence. | Dr. Lee paid $4.50. = usually 1 sentence |
| Paragraphs | One or more blank lines separate paragraphs. A line break inside the same paragraph does not automatically add a sentence. | Two text blocks separated by a blank line = 2 paragraphs |
| Unfinished fragments | A final meaningful fragment can be counted even without terminal punctuation. Lists and headings may therefore need a manual review. | Draft heading = 1 detected segment |
When a sentence and word counter helps
The same statistics answer different questions for students, editors and everyday writers.
Essays and assignments
Confirm a requested number of sentences or paragraphs before submitting work.
- Check whether every paragraph has enough development
- Compare total words with the number of sentences
- Find a paragraph that may be only one very long sentence
Articles and web copy
Use average sentence length as a quick editing signal while keeping the final judgment human.
- Spot dense sections before publication
- Balance short statements with detailed explanations
- Track characters for titles, snippets and form limits
Emails and business writing
Measure a message before shortening it for a busy reader or expanding an incomplete request.
- Review long status updates
- Check whether action items are buried in long sentences
- Keep reports and summaries within a clear structure
Language learning and translation
Compare sentence totals between a source and translation without sending private study text to a remote service.
- Practice recognizing sentence boundaries
- Compare paragraph structure across drafts
- Review punctuation that differs between writing systems
Accuracy, privacy and edge cases
Counting is deterministic, but punctuation does not always reveal a writer's intended structure.
Dialogue and creative punctuation
Fiction may combine interrupted speech, ellipses and fragments. Review the numbered breakdown when exact compliance matters.
Language differences
Word counts depend on language segmentation. CJK text does not use spaces like English, so the browser's language support can affect totals.
Not a grammar checker
The tool measures boundaries and length. It does not decide whether a sentence is grammatical, persuasive or factually correct.
Local processing
Counting happens in JavaScript on your device. This page does not upload, save or generate a copy of the text you enter.
Sentence counter FAQ
How do I count how many sentences are in my text?
Paste or type the text into the box at the top of this page. The sentence total updates immediately, and the numbered breakdown shows every segment the tool counted.
What punctuation counts as the end of a sentence?
Periods, question marks and exclamation marks normally end a sentence. The counter also recognizes full-width forms such as 。！？ and uses browser language rules to handle common abbreviations and punctuation groups.
Does this sentence counter count words too?
Yes. It shows words, characters, characters without spaces, paragraphs and average words per sentence beside the main sentence total.
Can I count sentences without punctuation?
A final meaningful fragment may be detected even when it has no closing mark, but punctuation-free lists and notes are ambiguous. Check the breakdown and add normal sentence endings when you need an exact academic or publishing count.
Is my text uploaded or stored?
No. The analysis runs locally in your browser with JavaScript. The text is not sent to our server or stored by this counter.
Why is my total different from another tool?
Counters can use different rules for abbreviations, initials, decimals, dialogue, ellipses and unfinished fragments. Compare the sentence breakdown to find the exact boundary that produced the difference.
Can I use the sentence counter on a phone?
Yes. The input, result cards and sentence list adapt to mobile screens. You can paste text, try the example, clear the field and copy the statistics from a modern mobile browser.