Case Converter
Convert text to Title Case, camelCase, snake_case, kebab-case and more.
Convert text to Title Case, camelCase, snake_case, kebab-case and more.
This free Case Converter from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the Case Converter
- Paste your text into the input box above.
- Pick any options the tool offers (case, format, separator).
- Click the action button - the result appears instantly.
- Copy the cleaned-up text to your clipboard, or download it as .txt.
What you can do with the Case Converter
- Prepare copy for blog posts, emails and social media.
- Edit student assignments before submission.
- Hit the word or character limit for ads, meta tags or microcopy.
- Clean up messy text pasted from PDFs or web pages.
Why use KX Toolkit's Case Converter
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
Paste plain text rather than rich-text from Word - it avoids hidden formatting characters that throw off counts.
Related Text Analysis Tools
If you find this tool useful, explore the full Text Analysis Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
What case formats does the converter support?
Common formats include UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and inverted case. Each rule is implemented as a separate transform so you can preview the output and pick the one that fits. Some tools also include sponge case for ironic alternating capitals popular in memes.
What is the difference between camelCase and PascalCase?
Both join words without spaces, but camelCase keeps the first letter lowercase - like userName - and PascalCase capitalises every word including the first - like UserName. Conventionally camelCase is used for JavaScript variables and function names, while PascalCase is used for class names in most object-oriented languages and React components.
When do I use snake_case versus kebab-case?
snake_case uses underscores and is standard for variables and function names in Python, Ruby, and database columns, because identifiers in those contexts cannot contain hyphens. kebab-case uses hyphens and is the convention for URL slugs, CSS class names, and HTML data attributes, where hyphens are valid and underscores are not idiomatic.
How does Title Case decide which words to capitalise?
Strict Title Case capitalises the first and last word and every word in between except short articles, prepositions, and conjunctions like a, an, the, of, and, or, in, on, for, to, but. Different style guides - Chicago, AP, MLA - disagree about which words count, so a single algorithm will not match every guide. Use the simple rule for blog posts and verify the exact rule when publishing under a strict style.
What does sentence case do to acronyms?
Sentence case lowercases everything after the first letter of each sentence, which means acronyms like HTML or CEO will be flattened to html and ceo. There is no reliable algorithmic way to detect acronyms in arbitrary text. After conversion, manually re-capitalise known acronyms, or keep them in uppercase before pasting and use a different rule.
Does the converter handle multiple words and punctuation?
Yes - for camel, Pascal, snake, kebab, and constant cases the tool splits the input on any combination of spaces, hyphens, underscores, and capital-letter boundaries, then re-joins with the chosen separator and casing. So Hello World, hello-world, hello_world, and HelloWorld all normalize the same way before being re-formatted into the target style.
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