Case converter
Change text to upper case, lower case, title case, or sentence case.
Enter text to get started.
Converting your file
Working on your device…
What this tool does
Change text to upper case, lower case, title case, or sentence case.
Select a supported file or paste text.
Use the options shown in the workspace.
Download the result and review it on your device.
When to use case converter
Normalize the capitalization of a short passage.

How to use case converter
- Paste the text or data into this tool’s input.
- Review the case converter options shown above.
- Run the tool and inspect the result before copying it.
Frequently asked questions
How does Case converter work?
Choose the input, adjust any available options, and run the tool. Change text to upper case, lower case, title case, or sentence case.
Is my file uploaded to ConvertExpress?
No. This demo performs this conversion in your browser. The site downloads its interface and code, but it does not upload the selected file for this tool.
Will the output always match the original?
Change text to upper case, lower case, title case, or sentence case. Check the result before using it for important work.
Can title case understand every name or abbreviation?
No. Case changes follow simple text rules. Review acronyms, brand names, and names that need special capitalization.