Text & Writing100% Free Tool

Free Sentence Case Capitalizer & Grammar Formatter Online

Automatically capitalize the first letter of each sentence, capitalize standalone 'I', and preserve technical abbreviations in pasted text. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.

100% Client-Side0ms Latency
Text Analysis Engine
Characters80
Words10
Lines1
Reading Time~1 min

How It Works

1

Paste Text

Paste text with incorrect capitalization.

2

Format

Capitalizes sentences and fixes lowercase 'i' pronouns automatically.

3

Copy Result

Copy properly capitalized text.

Frequently Asked Questions

Sentence case is standard written capitalization where only the first letter of a sentence and proper nouns are capitalized, with all other letters in lowercase.

Related Text & Writing Calculators & Utilities

Interlinked precision tools in the Text & Writing collection.

View all Text & Writing →