Online Text Case Converter
Switch text between a dozen letter cases — uppercase, lowercase, title case, sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE and dot.case — with a live preview, one-click copy and an undo for your last change.
- 100% free
- Private & safe
- Runs in your browser
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Why use Case Converter?
Case Converter is a fast, distraction-free way to work with text: paste your content, transform it, and copy the result instantly.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- Handles UPPERCASE; lowercase; Title Case; Sentence case; camelCase; PascalCase; snake_case; kebab-case; CONSTANT_CASE; dot.case.
- Type or paste your text.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use Case Converter
- Type or paste your text.
- Choose a case transformation; the preview updates immediately.
- Copy or download the result, or undo to restore the previous version.
- Use 'Remove extra spaces' to tidy up messy whitespace.
Examples
- Turning 'user profile id' into userProfileId for code.
- Converting a shouty ALL-CAPS paragraph back to sentence case.
Supported formats & limits
- UPPERCASE
- lowercase
- Title Case
- Sentence case
- camelCase
- PascalCase
- snake_case
- kebab-case
- CONSTANT_CASE
- dot.case
Limitations
- Title and sentence case use general English rules and may not match every style guide.
- Programmer cases strip punctuation to produce valid identifiers.
Frequently asked questions
Can I undo a conversion?
Yes. The tool keeps your previous text so a single undo restores it.
Does it handle accented characters?
Yes, Unicode text is handled reasonably across all case modes.
Does it work with accented or non-English text?
Yes — Unicode text is handled across all case modes, though language-specific title-case rules may differ.
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