Sentence Case Converter
Capitalize the first letter of each sentence while keeping the rest lowercase.
How to Use Sentence Case Converter
Paste your uppercase, lowercase, or messy text.
The tool scans for sentence boundaries (periods, question marks, exclamation marks).
Instantly get clean, properly capitalized sentence case text.
Frequently Asked Questions
What is sentence case?
In sentence case, only the first letter of the first word in a sentence is capitalized, along with proper nouns and acronyms.
More Basic Text Counters
Explore the other 19 companion tools in the Mobiflix text counting suite.
Word Counter
Live real-time word, character, sentence, and paragraph counter with reading time estimation.
Character Counter
Count total characters with and without whitespace plus live social media limit meters.
Character Counter Without Spaces
Calculate pure non-whitespace character length, space ratio, and content density.
Letter Counter
Count exact alphabetic letters [A-Z], vowels, consonants, and case distribution.
Number Counter
Count individual digits, numeric tokens, and calculate sums and averages in text.
Sentence Counter
Detect and count sentences, questions, exclamations, and average sentence length.