Private by design: this tool runs in your browser. ToolSyn does not receive the values, text or files you process here.
About this tool
Paste text once and switch between six capitalization styles. The result remains editable, so you can review proper names and style-guide exceptions before copying it.
How to use it
- Paste or type text in the editor.
- Choose the required case style.
- Review the result and copy it.
Available text cases
Uppercase capitalises every letter. Lowercase removes capitals. Title case capitalises major heading words. Sentence case capitalises detected sentence openings.
Worked example
Good to know
Automatic title and sentence case cannot reliably identify every proper name, acronym or publishing-style exception. Review important text before use.
Need more explanation or examples?
Compare uppercase, title case and sentence case →Frequently asked questions
Is my text uploaded?
No. The conversion runs in your browser.
Are line breaks preserved?
Yes, although rich-text formatting such as bold or colour is not preserved.
Can I undo a conversion?
Keep a copy of the original text or use your browser/editor undo immediately after a change.
Tool logic and explanatory wording reviewed on July 19, 2026.