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Text Analysis

Case Converter

Convert text between UPPER, lower, Title, Sentence and more.

About this tool

The Case Converter changes the capitalization of any text in one click: UPPER CASE, lower case, Title Case, Sentence case, aLtErNaTiNg case and iNVERSE case. It's the fastest way to fix text typed with Caps Lock on or to format headlines consistently.

Title Case capitalizes the first letter of every word — handy for blog titles and headings. Sentence case capitalizes only the first letter after each sentence-ending punctuation mark, which is the standard for body copy and descriptions.

Frequently asked questions

Yes. Each button transforms the current text in the box, so you can apply lower case first and then Title Case, for example.

Yes — conversion uses Unicode-aware methods, so characters like é, ü and ñ convert correctly.

It flips the case of every letter, which is useful for undoing text accidentally typed with Caps Lock enabled.