Case Converter
Free online case converter tool. Convert text to UPPERCASE, lowercase, Title Case, Sentence case, and more instantly.
About This Free Online Case Converter
Our free online case converter lets you instantly transform text between six different case styles. Convert to UPPERCASE for emphasis, lowercase for normal text, Title Case for headlines and headings, Sentence case for paragraphs, or try alternative styles like tOGGLE cASE and aLtErNaTiNg cASE. The converter gives you real-time results with a single click — no server required, your text stays on your device.
Features of Our Case Converter
- Six conversion modes — UPPERCASE, lowercase, Title Case, Sentence case, tOGGLE cASE, aLtErNaTiNg cASE
- Instant single-click conversion for every mode
- Active mode indicator shows which case style is currently applied
- Copy button to copy converted text directly to clipboard
- Real-time preview when typing after selecting a mode
- 100% private — all processing happens in your browser
How to Use the Case Converter
Using this tool is simple and requires no signup or registration. Follow these steps:
- Type or paste your text into the input area above.
- Click any case mode button — UPPERCASE, lowercase, Title Case, Sentence case, tOGGLE cASE, or aLtErNaTiNg cASE.
- The converted text appears instantly below the buttons.
- The selected mode is highlighted in green so you know which conversion is active.
- Click Copy Result to copy the converted text to your clipboard.
Frequently Asked Questions About Case Converter
What is Title Case conversion?
Title Case capitalizes the first letter of every major word while leaving articles (a, an, the), coordinating conjunctions (and, but, or), and short prepositions (in, on, at, for) in lowercase — unless they are the first or last word of the text. This is the standard format for article headlines, book titles, and blog post headings.
Can I convert ALL CAPS text to normal case?
Yes. Paste your all-caps text and click Sentence case or lowercase. Sentence case will capitalize only the first letter of the first sentence; lowercase will convert everything to lower case.
What is the difference between Sentence case and Title Case?
Sentence case capitalizes only the first letter of the first word in each sentence. Title Case capitalizes the first letter of every major word. Sentence case is used for normal paragraphs and body text; Title Case is used for headlines and titles.
Is it safe to paste sensitive text?
Yes. All text processing runs entirely in your browser. Your text is never sent to any server, stored, or logged. The conversion happens instantly on your device.
Why Choose Text Toolbox?
Text Toolbox provides free, private, and instant online text tools. Unlike other text utility websites that require signup accounts or send your data to servers, all our tools process your text entirely in your browser. This means your content never leaves your device — we cannot see it, store it, or share it. Our tools are fast, lightweight, and work on any device with a modern web browser.