Free online tool

Count sentences and inspect text length

Paste a passage to estimate its sentence, word and character counts. Sentence detection follows ending punctuation followed by whitespace or the end of the text, so abbreviations and unusual punctuation can affect the estimate.

Open the interactive Sentence Counter

The interactive tool loads in the page. Enable JavaScript to enter data, process content, and download results.

Quick guide

How to use this tool

  1. 01Type or paste text in the editor.
  2. 02Review the live counts and average sentence length.
  3. 03Check the source when abbreviations, initials or formatting make punctuation ambiguous.

Capabilities

Features and supported formats

  • Counts sentences, words, characters with and without spaces.
  • Shows average words per detected sentence.
  • Updates locally as the text changes.

Supported formats

Input: plain text. Output: sentence, word and character counts.

Answers

Frequently asked questions

How does the tool define a sentence?

It counts punctuation-terminated text segments using periods, question marks and exclamation points. Abbreviations, initials and formatting can make an automatic count approximate.

Does it count characters with spaces?

Yes. The page reports both the total character count and the count after whitespace is removed.