Text Case Converter

When to use it

Reach for this page whenever the lettering, not the wording, is the problem: a heading typed with the caps lock on, a spreadsheet export in shouting capitals, a form that rejected a title, a paragraph pasted from a PDF with random capitals, or a caption that needs to look deliberate. It converts the text you paste into one of four house styles and lets you copy the result in a single click, with no formatting carried over from the source.

It changes only the capital letters; punctuation, spacing, line breaks and word order survive, so the output is safe to paste into a document, a CMS field or a product listing. Nothing leaves your browser, so private notes stay where you typed them.

How the maths works

UPPERCASE and lowercase are direct conversions of the whole string. Title Case lowercases the text first, then capitalises the first letter of every word using a rule that treats any letter after a space, bracket, hyphen or slash as the start of a new word, while apostrophes stay inside words. Sentence case also lowercases everything first, then capitalises only the first letter of the text and the first letter after a full stop, question mark or exclamation mark.

The converted text appears underneath, with a copy button, and the big line above only confirms that something was converted.

A worked example

Type numora free tools for QUICK sums and the four modes give:

Two traps show up there: Title Case capitalises For as well, because it capitalises every word rather than following a style guide that leaves short joining words lowercase; and the mixed capitals in QUICK vanish in the two case-aware modes, which start from fully lowercase text.

Common mistakes

• Expecting style-guide Title Case. This tool capitalises all words, so of, and and the come out capitalised; drop them back by hand if your manual says otherwise.
• Losing deliberate capitals. Acronyms such as VAT or USA become Vat and Usa in Title and Sentence case. Fix those few words afterwards.
• Wrecking brand names. iPhone, PayPal and McDonald become Iphone, Paypal and Mcdonald, because no rule can know a brand.
• Trusting Sentence case on lists. A bullet list with no full stops is one long sentence to the tool, so only the first bullet is capitalised.
• Converting an empty box. Paste text first: with nothing in the box the page reports that there is nothing to convert rather than inventing output.

Keep exploring

• Word Counter — count the words, characters and sentences once the wording is final.
• Character Limit Checker — check the length against a title or post limit before publishing.
• Number to Words — write an amount out in words for an invoice or a cheque.