---
title: "Sentence Counter - Free Online Tool | CanDoYa"
description: "Free online sentence counter to count sentences with longest, shortest and average length stats. Runs in your browser - nothing uploaded."
url: https://candoya.com/tools/sentence-counter/
locale: en
type: browser-tool
---

# Free Sentence Counter

Category: Text & Writing

## What is a sentence counter?

A sentence counter is a free tool that instantly tallies the sentences in your text and breaks them down by length and type - statements, questions and exclamations - using Unicode sentence-boundary rules. Paste or type and the totals update live, all in your browser, so even sensitive drafts stay private on your device.

The counter runs entirely in your browser using JavaScript and the platform's Unicode-aware sentence segmenter, so your text never touches a server, there's no account, and there are no length limits beyond what your device can handle.

## How to use it

1. **Paste your text** - Type or paste your text into the box above.
2. **Read the counts** - Total sentences, average length, longest and shortest sentence update live as you type.
3. **Check the mix** - See how many are statements, questions and exclamations, then copy the text when you are done.

## Who it's for

- **Writers and editors** spotting run-on sentences and balancing pacing.
- **Students** hitting an essay sentence count or showing variety in style.
- **Teachers and ESL learners** grading or studying sentence patterns.
- **Content marketers** tuning blog posts and ad copy for readability.

## Expert note

We split sentences using the browser's Unicode-aware boundary rules (Intl.Segmenter), which correctly handle decimals like "3.14", ellipses and CJK punctuation - though abbreviations such as "Dr." and "e.g." can still cause an extra split, the one quirk worth knowing.

## Frequently asked questions

### Is the sentence counter free?

Yes - it's 100% free, with no sign-up and no limits. Everything runs in your browser.

### Is my text uploaded anywhere?

No. Sentences are counted locally in your browser; your text never leaves your device.

### How does it decide where a sentence ends?

It uses your browser's built-in Unicode sentence segmentation (Intl.Segmenter), which handles period, question mark and exclamation across many scripts - including English, Chinese and Japanese - and ignores decimals and ellipses correctly.

### Does it count an incomplete final sentence?

Yes. A trailing fragment without ending punctuation is counted as one sentence, since that's usually what the writer means.

### What counts as a question or an exclamation?

Any sentence whose final non-space character is ?, ¿, ! or ¡. Everything else is counted as a statement.

### Does it handle paragraphs and bullet lists?

Yes. Each paragraph or bulleted line counts as its own sentence even when the writer omits a final period, so unterminated lines aren't dropped from the total.

## Related tools

- [Word Counter](https://candoya.com/tools/word-counter/)
- [Character Counter](https://candoya.com/tools/character-counter/)
- [Reading Time Calculator](https://candoya.com/tools/reading-time-estimator/)
- [Speaking Time Calculator](https://candoya.com/tools/speaking-time-estimator/)

---

*Markdown edition of <https://candoya.com/tools/sentence-counter/>, published for AI agents and other automated readers. Index of key pages: <https://candoya.com/llms.txt>.*