Sentence Case Converter
Convert text to sentence case
Frequently Asked Questions
How do I convert text to sentence case?
Paste your text. The tool capitalizes the first letter of each sentence and lowercases the rest. "HELLO WORLD. THIS IS A TEST." becomes "Hello world. This is a test." It detects sentence boundaries using periods, question marks, and exclamation points.
What is the difference between sentence case and title case?
Sentence case: Only the first word of each sentence is capitalized ("The quick brown fox"). Title case: Major words are capitalized ("The Quick Brown Fox"). Sentence case is standard for body text, paragraphs, and most web content. Title case is used for headings and titles.
Does sentence case preserve proper nouns?
Basic conversion lowercases everything except the first letter. The tool has a "smart mode" that preserves common proper nouns (country names, brand names, personal names) using a built-in dictionary. Enable this option for more accurate results with names and places.
When should I use sentence case for headings?
Google's Material Design and Apple's Human Interface Guidelines recommend sentence case for most UI text. It feels more natural and conversational. Use sentence case for: subheadings, button labels, menu items, and form labels. Reserve title case for main page titles only.
Can I convert sentence case in bulk for multiple paragraphs?
Yes. Paste multiple paragraphs. The tool processes each sentence independently, handling paragraph breaks correctly. It preserves line breaks and formatting while converting case. Process thousands of words instantly with consistent sentence case formatting.