Case Converter
Convert text to uppercase, lowercase, title case, sentence case or a clean URL slug.
✓ No signup✓ Mobile friendly✓ Clear limitations✓ Browser-first where practical
Recent tools are remembered only on this device.
Why use this case converter?
Case Converter quickly repairs text copied from spreadsheets, PDFs or systems that use inconsistent capitalization.
Example
Paste ALL-CAPS text and switch it to lowercase, Title Case or sentence case in one click.
Important note
Automatic title and sentence case is mechanical. Proper nouns, acronyms and brand names may still need manual correction.
How to use it
Start with the inputs shown above, review any options or assumptions, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is this tool free?
Yes. The core tool is free to use.
Do I need an account?
No. You can use it without signing up.
Does it work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers.