How it works
Apply Unicode upper/lower case, or uppercase each word’s first letter
Input definitions
- Text
- Plain text; maximum 200,000 characters.
- Case
- Choose UPPERCASE / lowercase / Title Case.
A worked example
- Text
- Hello world
- Case
- UPPERCASE
HELLO WORLD
Assumptions & limits
Unicode plain text only. No input is uploaded. Maximum 200,000 characters.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-17. Content checked against the stated method and examples. Our verification approach.
Common questions
Can I paste formatted documents into this text tool?
The tool processes plain text. Styling, document structure and rich-text metadata are not preserved. Copy the result before closing the page.
How does the Text case converter tool work?
Apply Unicode upper/lower case, or uppercase each word’s first letter.
What are the assumptions and limits of Text case converter?
Unicode plain text only. No input is uploaded. Maximum 200,000 characters.