Case Converter
Convert English text to uppercase, lowercase, title case, sentence case, or toggle case.
Converted text
How to use case conversion
Use this tool to quickly standardize the writing style of ordinary English text, such as email subjects and document titles. Line breaks, numbers, and symbols stay unchanged.
Standardize writing style quickly
Case conversion is useful when email subjects, document titles, or list items need consistent English capitalization without changing their content. Line breaks, numbers, and symbols are preserved.
Choosing title case or sentence case
Title case capitalizes the first letter of each English word, while sentence case capitalizes only the first English letter of each sentence or line. Review names and brands because the tool cannot infer their preferred capitalization.
Frequently asked questions
Does it convert Korean text too?
Korean has no uppercase or lowercase distinction, so it remains unchanged. Only letter case is converted.
What is the difference between title case and sentence case?
Title case capitalizes the first letter of each English word. Sentence case capitalizes only the first English letter of each sentence or line.
Will line breaks and whitespace change?
No. Line breaks, whitespace, numbers, and symbols are preserved while letter case is converted.
Is my text stored on a server?
No. The conversion runs in your browser and does not store your input or result on a server or database.