Text Case Converter

How to Convert Text Case Online

Whether you need to fix accidentally turned-on Caps Lock text, format headlines for blog articles, or standardise programming variable names, Textnator's Case Converter does it in one click. Paste your text into the box above and choose your target style.

Supported Conversion Modes

• UPPERCASE: Converts every letter into capital letters (e.g., "HELLO WORLD").
• lowercase: Transforms all characters into standard lower case letters (e.g., "hello world").
• Title Case: Capitalizes the first letter of every word—ideal for headlines, titles, and book chapters.
• Sentence case: Capitalizes only the first letter of each sentence, keeping the rest lowercase for readable prose.
• camelCase: Removes spaces and capitalizes every word after the first—perfect for software developers naming variables.
• slug-case (URL Slug): Converts spaces to hyphens and strips punctuation to generate web-friendly URL slugs (e.g., "hello-world").

Privacy & Performance

This conversion tool processes all text purely in client-side JavaScript. None of your text, drafts, or sensitive documents are sent over the network or saved anywhere.

Frequently Asked Questions

Does Title Case leave small prepositions lowercase?
Our standard title converter capitalizes every word unit to keep formatting uniform across multi-line lists and headlines.

Can I convert large documents?
Yes! The browser engine processes full pages of text instantly without lag.