Capitalize Sentences

Fix poorly capitalized text by automatically capitalizing the first letter of every sentence. This tool detects sentence boundaries (., !, ?) and ensures each sentence begins with a capital letter — ideal for cleaning up voice transcriptions, chat exports, and imported content.

Input
Output (capitalized sentences)
Result will appear here...

How to Use Capitalize Sentences

  1. 1Paste text with missing capitals
  2. 2Output is capitalized in real time
  3. 3Copy result

Your Privacy is Protected

Capitalize Sentences runs entirely in your browser. Your files and data are never uploaded to any server, never stored, and never shared. Everything happens locally on your device using secure browser APIs.

No server uploadNo account required100% freeWorks on all devices

Frequently Asked Questions

Does it change mid-sentence capitalization?

No. It only capitalizes the first character of each sentence, leaving mid-sentence words unchanged.

Why Use This Tool?

Files never leave your device
No upload to any server
Instant processing in browser
100% free, no account needed

Tags

capitalize sentencesauto capitalizefix capitalizationsentence casetext formatter

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