Case Converter

About the Case Converter

Changing the capitalization of text by hand is tedious and error-prone — and retyping a heading in Title Case or turning a label into snake_case breaks your flow. This converter does it instantly: paste your text once and see it rendered in every common case at the same time, then copy the exact version you need.

It runs entirely in your browser, so nothing you paste is uploaded or stored. Whether it's a private document heading or a variable name from your codebase, the text stays on your device.

Every case, explained

• UPPERCASE and lowercase — the basics, applied to the whole string.
• Title Case — capitalizes the first letter of every word, great for headings and titles.
• Sentence case — capitalizes the first letter of each sentence and lowercases the rest, like normal prose.
• camelCase and PascalCase — no spaces, words joined with capitals; the staples of variables and class names.
• snake_case, kebab-case, CONSTANT_CASE, and dot.case — separator styles used across code, file names, CSS, and config.
• Slug — a clean, lowercase, hyphenated, URL-friendly version for links and filenames.
• aLtErNaTiNg and InVeRsE — for fun, emphasis, or flipping the case of existing text.

Who uses it

• Writers and editors fixing headings, titles, and ALL-CAPS pastes.
• Developers converting between variable, constant, and file-name conventions.
• Marketers and bloggers turning a title into a tidy URL slug.
• Anyone who pasted something in the wrong case and doesn't want to retype it.

No account, no upload — paste, pick a case, copy.

Common questions

How do I convert all caps text to normal case?

Paste the CAPS LOCK paragraph and copy the Sentence case version, which lowercases everything and recapitalizes sentence starts. Title Case is one row away if it is a heading.

What is the difference between Title Case and Sentence case?

Title Case Capitalizes the Main Words, the way headlines and book titles do. Sentence case only capitalizes the first word and proper nouns, like a normal sentence. Both appear instantly so you can compare on your own text.

How do I convert text to camelCase or snake_case?

Paste the words and copy the developer case you need: camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, or dot.case. Handy when a spec written in English has to become variable names by lunch.

How do I turn a title into a URL slug?

The slug row converts any text into a clean lowercase-hyphenated string with punctuation stripped, exactly what URLs and file names want.

Is the text I paste stored anywhere?

No. Conversion happens in your browser and nothing is sent or saved. Paste drafts, contracts, or code without a second thought.

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