Case Converter

Use our free case converter to change text to UPPERCASE, lowercase, Title Case, Sentence case or aLtErNaTiNg case in one click. It is free, needs no signup, and runs entirely in your browser. Your text is processed locally on your device and is never uploaded to a server, so your words stay private.

How to Use the Case Converter

• Type or paste your text. Put any text into the box. The character and word counts update live as you type.
• Pick a case. Click UPPERCASE, lowercase, Title Case, Sentence case or aLtErNaTiNg to transform the whole text at once.
• Copy the result. Click Copy text to put the converted text on your clipboard, ready to paste anywhere.
• Start again. Click Clear to empty the box, or paste new text and convert it the same way.

Key Features and Benefits

• Five case styles. Uppercase, lowercase, title case, sentence case and alternating case cover almost every formatting job.
• Live counts. Characters and words are counted as you type, which is handy for posts with length limits.
• One-click copy. Copy the finished text straight to the clipboard without selecting it by hand.
• Private by design. Conversion happens locally in your browser, so your text is never uploaded, stored or shared.
• Free with no signup. No account and no limits on how much text you convert.
• Works anywhere. Use it on a phone, tablet or desktop in any modern browser.

Worked Examples

Example 1 — Fixing a heading. You paste the heading 'quarterly sales report' and click Title Case to get 'Quarterly Sales Report', ready for a document or slide.

Example 2 — Shouting, undone. A colleague sends a message entirely in capital letters. Paste it in, click lowercase, and the text becomes normal reading text in one step.

Example 3 — A social post. You write a playful caption and click aLtErNaTiNg to give it a fun, eye-catching look before copying it to your social app.

Frequently Asked Questions

What is the difference between title case and sentence case?

Title case capitalises the first letter of every word, which suits headings and book titles. Sentence case capitalises only the first letter of each sentence, which suits normal paragraphs and messages.

Does the converter change punctuation or numbers?

No. Punctuation, numbers and spacing are left exactly as you typed them. Only the letters change case, so your text keeps its original structure.

How does alternating case work?

Letters alternate between upper and lower case, starting with a capital: aLtErNaTiNg. Spaces and punctuation do not break the pattern, so the result looks evenly staggered.

Is my text uploaded anywhere?

No. The conversion runs entirely in your browser on your device. Your text is never sent to a server, stored online, or seen by anyone else.

Can I convert very long text?

Yes. You can paste whole articles or reports and convert them in one click. The live character and word counts help you keep track of the length as you work.

Related Tools

Try the Word Counter for detailed text statistics, the Password Generator for strong random passwords, the Percentage Calculator for everyday maths, or the Age Calculator to work out an exact age.

Tips for the Best Results

• Convert first, then edit. Run the whole text through the converter, then fix any proper nouns or brand names that need special capitalisation.
• Use title case for headings only. Long paragraphs in title case are hard to read, so save that style for headings, titles and short labels.
• Check sentence case after pasting. Text copied from spreadsheets or PDFs often has inconsistent capitals, and sentence case tidies it in one click.
• Watch out for abbreviations. Acronyms such as NASA or HTML will be lowercased by the lowercase and sentence case options, so restore them by hand afterwards.
• Keep the original. If the text matters, copy the converted version somewhere safe before clearing the box, so you can always go back.

Changing text case by hand is slow and error-prone, especially in long documents. A one-click converter removes that chore entirely, and because it runs in your browser, there is no waiting, no account and no copy of your writing left on a server.

Which Case Should You Use?

UPPERCASE is best for short warnings, labels and headings that must stand out, but whole paragraphs in capitals are tiring to read, so use it sparingly. lowercase suits a casual, modern look in usernames, tags and stylised headlines, and it is also the fastest way to normalise text that arrived in all capitals.

Title Case is the standard choice for headings, page titles and book names, because it looks polished and professional. Sentence case is the right choice for ordinary writing, emails and messages, since it follows the same rules readers already expect. aLtErNaTiNg case is purely playful and works best for short social captions, memes and jokes, where its unusual look is the whole point.