Case Converter
Convert text to lowercase, uppercase, title case or sentence case. Preserve your original text in the browser.
Runs locally in your browser
How to use
Paste text, choose uppercase, lowercase, title or sentence case, then copy the result.
When to use it
Prepare English headings or lists. Check proper names and acronyms manually; Chinese text is retained.
Limits
Use up to 200,000 characters. Line comparisons allow 250,000 line pairs.
FAQ
Does this send my text to a server?
No. Processing happens in this tab, and the original text is kept separate from the result.
Do I need an account?
No. Open the tool, process your input and download the result.
What are the limits?
Use up to 200,000 characters; comparisons allow 250,000 line pairs.