Tool
Case Converter
Switch text between UPPERCASE, lowercase, Title Case, and Sentence case instantly. Runs entirely in your browser.
What Is the Case Converter?
The Case Converter is a free tool that switches text between UPPERCASE, lowercase, Title Case, and Sentence case instantly, entirely in your browser. Nothing is uploaded anywhere, the conversion happens the moment you type or click a button.
It comes up constantly in SEO and content work: fixing a title pasted in from a spreadsheet that came out ALL CAPS, matching a heading style guide that requires Title Case, or cleaning up a meta description someone wrote with the caps lock on by accident.
How to Use It
- 1Type or paste your text into the field above.
- 2Click UPPERCASE, lowercase, Title Case, or Sentence case to transform it instantly.
- 3Click the copy icon to grab the result, no need to select the text manually.
Frequently Asked Questions
Does Title Case capitalize every word?
This tool capitalizes the first letter of every word, the simplest and most common definition of Title Case. Formal style guides (AP, Chicago) lowercase minor words like "a", "the", and "of" unless they start the title, this tool does not apply those exceptions, so double-check against your specific style guide if that distinction matters for your use case.
Does this work with Thai text?
Thai script has no concept of uppercase or lowercase, so Thai characters pass through unchanged by any of the four conversions. The tool is built for mixed content, English portions of a bilingual title convert normally while Thai portions stay exactly as typed.
Is my text uploaded anywhere?
No. All four conversions run with plain JavaScript string methods directly in your browser tab. Nothing is sent to a server, logged, or stored.