Case Converter

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Case Converter – Transform Text to Any Case Instantly

Convert your text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and 12+ more formats with just one click.

How to use case converter

  • Enter your text in the input textarea on the left side of the tool.
  • All conversions displayed at once — the output panel on the right displays all 15+ case formats at once.
  • Just click on any result to copy it to your clipboard in one click.
  • Click on the case format button in the case format section below the input area to highlight the desired case format.
  • Save the text you have converted as .txt file or copy all the results.

What will our Case Converter do?

The Case Converter is a powerful tool for transforming text, available online free of charge for all content creators, developers, writers and markets. Need to format text to Title Case for blog headlines, Sentence case for emails or camelCase for java script variable names? This tool does it all in the blink of an eye.

It supports 15+ case formats and offers you a preview of all the cases live, so you can easily select the best format for your project. Converts are done in your browser and your text never leaves your device, so that you are completely private and secure.

When to Use Different Case Formats

Knowing which case format to use can make your content more quality and your code more readable:

For Writers & Content Creators

  • Title Case: Blog Post titles, chapter headings, book titles, social media headlines
  • Sentence case: Body text in emails, paragraphs description, product features, UI labels Emphasis/warning
  • UPPERCASE: Emphasis, warning messages, brand names in logos

For Developers & Programmers

  • camelCase: JavaScript variables, function names in JavaScript.
  • Capitalization: Class names, React components, TypeScript interfaces.
  • snake_case: Python variables, database column names, Python function names.
  • kebab-case: CSS class names, HTML attributes, npm package names, URL slugs.
  • The CONSTANT_CASE environment variables, config constants, enum values…

Why Choose Our Case Converter?

  • Instant Conversion: View all 15+ case format results in real-time while typing. No waiting, no page reloads.
  • 100% Private: Everything is done in the browser. Your text does not pass through our servers – guaranteed.
  • Mobile Friendly: Fully responsive design is ideal for mobile devices, tablets, and desktop computers.
  • Developer-Friendly: camelCase, snake_case, kebab-case and other programming-casing.
  • No Limits: No caps, no sign-up and absolutely free.
  • Keyboard Shortcuts: You can select all, copy (Ctrl+C), etc., seamlessly integrated into your workflow.

FAQs

What is a case converter and how does it work?

A case converter is a free online tool that can convert text from one capitalisation format to another. You can copy and paste or just type in your text, and the tool will instantly convert it to all 15+ case formats – UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and more. It will automatically convert your content as you type or paste it.

Is the case converter absolutely free to use?

Indeed, our Case Converter is 100% free, and you can use it as much as you want. No sign up, daily conversion limit and no premium version. It can be used unlimited number of times for personal or commercial projects. We feel that we should make these tools available to anyone for free and open use.

Do you save or store my text after conversion?

No, your text doesn’t leave your browser. Everything that happens on conversion is done by a client-side JavaScript processor. We never log, store, transmit or share your content in any way. The information you enter is lost when you close the page or refresh it. We value your privacy.

How many case formats are supported?

We’ve included 15 case formats that you can use with our tool: UPPERCASE, lowercase, Title Case, sentence case, Capitalized, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case, Train-Case, alternating case, and inverse case. Any more formats would be welcome.

What is the difference between ‘Title Case’ and ‘Sentence case’?

In Title Case, the initial letter of all major words in the title or heading are capitalized (e.g., The Quick Brown Fox Jumps Over The Lazy Dog). Sentence case – only capitalize the first letter of the first word and any proper nouns (e.g., The quick brown fox jumps over the lazy dog). Sentence case is the typical style for sentences in the body and descriptions, whereas title case is often used in headlines.

When to use camel case or snake case?

In JavaScript, variables and function names follow the convention camelCase (e.g., “myVariableName”). Python, Ruby and for database column names prefer snake_case (e.g., “my_variable_name”). CSS classes, HTML attributes and URL slugs use kebab-case (e.g., “my-variable-name”). Select according to conventions of the programming language.

Is there a way to convert several paragraphs at once?

Yes! Our Case Converter functions with several paragraphs, bullet points, and lengthy content. There is no limit on characters but, for best results and performance, try to work with a text of less than 10,000 characters at a time. Live preview updates as you type, and makes working with long content content accessible.

Does this work on mobile devices?

Absolutely! Our Case Converter is fully responsive and will perform well on all devices such as Tablets and Smartphones. The interface adapts to smaller screens automatically, and copy-to-clipboard feature is supported in mobile browsers like Safari (iOS) and Chrome (Android).

What is their level of capitalization accuracy?

Most common cases, such as proper capitalization of acronyms like “HTML” or “API” are specially handled by our tool. For Title Case, it correctly capitalizes the major words and leaves articles, prepositions and conjunctions lowercase unless they are the first or last word. If you’re looking for a style guide that is specific to your needs, such as AP or Chicago style, please see our related tools section.

Are there other case formats that I can suggest?

Of course! Our tools are continually undergoing improvement. For any particular format not available please contact us via the Contact page. User feedback has led us to put in place a few popular requests such as dot.case, path/case, and Train-Case.

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