toolboxapp

Sentence Counter Online

Count sentences in any text together with words, characters and paragraphs. Runs instantly in your browser.

Get a quick sentence count for drafts, reading exercises or content analysis without uploading the text anywhere.
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Text Tools

Free  ·  Local browser processing  ·  No signup

What this tool helps you do

Get a quick sentence count for drafts, reading exercises or content analysis without uploading the text anywhere.

This page uses the same tested Word Counter engine as the main tool, but focuses on this specific task so you can get straight to the relevant workflow without hunting through a generic converter.

How to use it

  1. Paste or enter the content you want to process in the tool above.
  2. Use the preselected mode when this task has a specific mode, then click Run.
  3. Review the output, then copy or download it if the tool provides a download option.

Common uses

  • Editing long-form articles
  • Checking sentence density
  • Analyzing writing exercises

Example

Input: One sentence. Here is another! Is this the third?

Expected result: The tool detects sentence-ending punctuation and reports the total.

Useful tip

Abbreviations can make sentence counting imperfect in any lightweight browser tool, so review edge cases in formal linguistic work.

Frequently asked questions

Is this tool free?

Yes. The tool is free to use, requires no account and runs directly in your browser.

Is my input uploaded to a server?

No. The tool processes the input locally in your browser. Your tool input is not sent to ToolboxApp servers.

When should I use Word Counter?

Editing long-form articles, checking sentence density, or analyzing writing exercises.