Text & Writing
Case Converter
The Case Converter switches any block of text between six common letter-case styles in one click: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, and snake_case. It's a small tool that saves a genuinely annoying amount of manual retyping.
It's especially handy for developers who need a variable name in camelCase or snake_case, writers fixing text that was accidentally left in caps-lock, and anyone cleaning up headings or titles that need consistent Title Case formatting.
How to Use the Case Converter
- Open the Case Converter (button below).
- Paste or type your text into the input box.
- Click the case style you need — UPPER, lower, Title, Sentence, camelCase or snake_case — and copy the converted result.
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Frequently Asked Questions
What's the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of most words ("This Is A Heading"), while Sentence case only capitalizes the first letter of the sentence ("This is a sentence.") — the tool handles both conventions correctly.
Can I convert code variable names?
Yes — the camelCase and snake_case options are built specifically for that: turning "user name" into "userName" or "user_name" instantly.
Does it work on very long text?
Yes, there's no practical length limit since the conversion runs instantly in your own browser rather than round-tripping to a server.