Case Converter

Type or paste your text, then click any button to instantly convert it to the case style you need.

Characters: 202|Words: 35|Lines: 1

How to Use

1

Paste Your Text

Type or paste any text — a sentence, paragraph, essay or list — into the box.

2

Pick a Case

Click any button: Sentence, UPPER, lower, Capitalized, Title, aLtErNaTiNg or InVeRsE. The text updates in place.

3

Copy or Download

Use Copy to grab the converted text, or Download to save it as a .txt file.

Case Types Explained

Sentence case

This is sentence case. It capitalizes the first letter of each sentence.

Lowercases everything, then capitalizes the first letter of each sentence — exactly how normal prose is written.

lower case

this is lower case. every letter becomes a small letter.

Converts every letter to its lowercase form. Good for normalizing shouty or all-caps text.

UPPER CASE

THIS IS UPPER CASE. EVERY LETTER IS A CAPITAL.

Converts every letter to its capital form. Use for emphasis, headings, signs and acronyms.

Capitalized Case

This Is Capitalized Case. Every Word Starts With A Capital.

Capitalizes the first letter of every single word. Useful for headlines and proper-noun lists.

aLtErNaTiNg cAsE

tHiS iS aLtErNaTiNg cAsE.

Switches between lowercase and uppercase letter by letter — popular for sarcasm and mocking memes.

Title Case

This Is Title Case for an Article About Cats

Follows English style guides: first and last word always capitalized, but articles, conjunctions and short prepositions stay lowercase.

InVeRsE CaSe

tHIS iS iNVERSE cASE.

Swaps the case of every letter — uppercase becomes lowercase and vice versa.

FAQ

What's the difference between Title Case and Capitalized Case?

Capitalized Case capitalizes every single word. Title Case follows English writing conventions — it always capitalizes the first and last word but keeps articles ("a", "an", "the"), short conjunctions ("and", "or", "but") and short prepositions ("of", "in", "on") in lowercase when they appear in the middle.

Does it work with non-English text?

Yes. The tool processes any text. Characters that have no concept of case (Chinese, Japanese, Korean, Arabic, digits) stay unchanged, so mixed-language text is fully supported.

Is my text uploaded anywhere?

No. Everything happens locally in your browser. Your text never leaves your device — safe for confidential drafts.

Is it really free?

Yes — 100% free, no sign-up, no character limits, no watermark.

Can I undo a conversion?

Each conversion writes to the same text box, so the previous version is replaced. Use your browser's Ctrl+Z / Cmd+Z inside the text box to undo, or simply click another button to convert again.

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