Uppercase converter

Paste your text and get it in CAPITAL LETTERS instantly. Accents and special characters are handled correctly, and nothing leaves your browser.

  • Free
  • No sign-up
  • Runs in your browser
case-upper

100% private — your text is processed in your browser and never sent to any server.

How it works

Paste your text

Type or paste anything, one line or many.

Choose the style

The style is already selected for you on this page; change it any time.

Copy the result

It updates as you type. Copy it or download it as a text file.

How to convert text to Uppercase

To convert text to Uppercase, paste it in the box above and the result appears instantly in the output box, ready to copy. The style is already selected on this page. Every line is converted on its own, accents and other alphabets are respected, and nothing is uploaded because it all runs in your browser.

What it does

An uppercase converter replaces every lowercase letter with its capital form and leaves digits, punctuation and spaces alone. Because it uses your browser's language-aware routines, letters outside English are handled properly too: ü becomes Ü and ß becomes SS in German text.

Examples

Examples
BeforeAfter
hello worldHELLO WORLD
Invoice no. 4521 is dueINVOICE NO. 4521 IS DUE
straße & müsliSTRASSE & MÜSLI
iPhone 15 ProIPHONE 15 PRO

Where it is used

  • Headings and labels in documents and slides that must stand out.
  • Legal and form fields that ask for a name or address in capitals.
  • Constants and codes, for example status flags or product codes typed in lowercase.
  • Fixing mistakes when you typed a paragraph with caps lock in the wrong state.

Tips and things to check

  • Long passages in capitals are harder to read, so keep them for short phrases.
  • Online, capitals are read as shouting; use them sparingly in messages and emails.
  • If you only need the first letter capitalised, use sentence case or title case instead.

Private by design

Your text is processed in your browser and never sent to a server, so you can safely convert drafts, contracts, code or anything private.

Frequently asked questions

Does it work with accents and other languages?
Yes. Accented letters such as ç, ü and ø, and letters from other alphabets such as Greek and Cyrillic, are converted correctly.
Does it change numbers and punctuation?
No. Digits, symbols, spaces and line breaks stay exactly as they are; only letters change.
How do I get the opposite?
Use the lowercase converter, which turns everything to small letters, or the sentence case converter to fix text written in all capitals.
Is this converter free?
Yes. There is no sign-up and no limit, and it runs in your browser, so nothing you type is sent to a server.
Does it work on a phone?
Yes. It works in any modern mobile browser, and the result updates as you type.