Capitalize Sentences
Advanced text capitalization with 10 essential modes including sentence case, title case, camelCase, and more
Capitalizes the first letter after sentence-ending punctuation and proper nouns
The Capitalize Sentences tool is an advanced text formatting utility that intelligently capitalizes text while respecting grammar rules, abbreviations, acronyms, proper nouns (countries, cities, months, days), and special cases. Unlike simple capitalization tools, this uses smart detection algorithms to handle complex scenarios like abbreviations (Dr., Mr., etc.), acronyms (NASA, FBI), proper nouns (India, London, Monday), quotes, ellipsis, and more.
Choose from 10 essential capitalization modes including sentence case, title case, UPPERCASE, lowercase, capitalize all words, alternating case, toggle case, camelCase, snake_case, and kebab-case. Perfect for writers, developers, and content creators who need quick, reliable text transformation.
Smart Sentence Detection
Intelligently detects sentence boundaries, handling abbreviations and ellipsis correctly.
Proper Noun Recognition
Automatically capitalizes countries, cities, months, days, and other proper nouns for grammatically correct text.
Abbreviation Handling
Recognizes common abbreviations like Dr., Mr., Mrs., etc. and doesn't treat them as sentence ends.
Acronym Preservation
Automatically detects and preserves acronyms like NASA, FBI, CIA without changing them.
Quote Support
Properly handles capitalization inside and after quotes, maintaining correct grammar.
10 Essential Modes
From sentence case to camelCase, all the important capitalization styles you need.
Developer-Friendly
Includes camelCase, snake_case, and kebab-case for coding conventions.
Title Case
Proper title case formatting with smart handling of articles and prepositions.
Real-Time Preview
See results instantly as you type with live statistics.