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Sentence Counter

Paste your text to see how many sentences and paragraphs it has, how long the sentences are, and which ones are too long.

Processed locally in your browser

Options
Sentences are found with your browser’s language rules and abbreviations such as Dr. or e.g. are handled.0 chars · 0 lines
The result will appear here.

What is Sentence Counter?

A sentence counter splits a text where sentences really end and reports the totals. It uses the language rules built into your browser (Intl.Segmenter) and falls back to a punctuation-based splitter, then repairs the classic false stops: "Dr. Smith", "J. K. Rowling", "e.g. this" or "9 a.m. and" stay in one sentence, and decimals such as 3.50 or domains such as example.com never end one.

For every sentence the tool counts words and characters, then shows the average number of words per sentence, the longest and shortest sentence, how many exceed a threshold you choose, and a table of the longest sentences with their position and paragraph. Paragraphs are separated by blank lines.

How does it work?

  1. Paste or type your text; the statistics update as you type.
  2. Set the "long sentence" threshold in words (25 is a common editing guideline) and how many long sentences to list.
  3. Enable the line-break option for lists, subtitles or poems where each line is a sentence.
  4. Use the table of longest sentences to find what to shorten, using the # column to locate it.

Common use cases

  • Editing an article or essay to keep sentence length readable.
  • Checking a school assignment against a required number of sentences.
  • Comparing the average sentence length of two drafts or two authors.
  • Counting sentences in product descriptions, abstracts or ad copy with strict limits.

Examples

Try this input in the tool above:

Input
Dr. Smith arrived at 9 a.m. and greeted everyone. Short one! Did you know that the report, which covers sales, costs, hiring and the plans for the next three quarters, is due on Friday? Yes.

The second paragraph is calmer. It cites e.g. two sources, costs 3.50 dollars and links to example.com.
Output
Sentences: 6
Paragraphs: 2
Words: 55
Sentences per paragraph (average): 3.0
Words per sentence (average): 9.2
Characters per sentence (average): 48.2
Longest sentence: 23 words
Shortest sentence: 1 words
Sentences over 25 words: 0

Privacy

Sentence Counter runs entirely in your browser. The text or files you provide are processed on your device and are not uploaded, logged or stored on our servers.

Limitations

Sentence detection is heuristic: unusual abbreviations, ellipses inside sentences or missing spaces after full stops can still be split wrongly. Treat the count as very close, not legally exact.

Frequently asked questions

Are abbreviations like "Dr." or "e.g." counted as sentence ends?

No. Common English, French and Spanish abbreviations, single-letter initials and dotted forms such as e.g., i.e. or a.m. are kept inside their sentence. Rare abbreviations may still be cut.

How are paragraphs counted?

A paragraph is a block of text separated from the next one by at least one blank line. Single line breaks inside a block do not start a new paragraph.

Does it work for Arabic, Chinese or Japanese?

Yes. Terminators such as ؟, 。, ！ and ？ end a sentence, and words are counted with the same rules as the Word Counter, including unspaced scripts.

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