Sentence Case Converter — Convert Text to Sentence Case Free
Convert text to sentence case — first letter of each sentence capitalized, all others lowercase. Free, instant, browser-based.
Sentence case capitalizes the first letter of each sentence and lowercases everything else. It is the standard capitalization style for body text, UI labels, and modern editorial copy.
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What is Sentence Case Converter — Capitalize First Letter of Each Sentence?
A sentence case converter formats text so each sentence begins with one capital letter and all other letters are lowercase — the standard format for normal prose. It detects sentence boundaries (period, exclamation mark, question mark followed by a space) and capitalizes the first letter of each new sentence. Useful for fixing all-caps text or over-capitalized content.
How to Use Sentence Case Converter — Capitalize First Letter of Each Sentence
- 1Paste your text into the input field.
- 2The sentence case version appears instantly.
- 3Review the output to verify sentence boundaries were detected correctly.
- 4Copy the result with one click.
Key Features
- Capitalizes the first letter of each sentence
- Lowercases all other letters
- Detects period, !, and ? as sentence boundaries
- Preserves proper nouns if already capitalized
- One-click copy
Benefits
- Fix all-caps or improperly capitalized text
- Normalize body text formatting quickly
- Prepare text for CMS publishing
Use Cases
Why Use Irreva for Sentence Case Converter — Capitalize First Letter of Each Sentence?
Fix all-caps or improperly capitalized text
Normalize body text formatting quickly
Prepare text for CMS publishing
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Works on any device: desktop, tablet, or mobile.