Online Tool Store
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE, live as you type. Runs entirely in your browser.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Example shown — edit it, or pick a different case below.
How it works
- Type or paste your text.
- Pick a case from the row of buttons.
- Copy the result — it updates instantly if you keep editing the input.
FAQ
Does my text get sent anywhere?
No. Every conversion runs locally in your browser with plain JavaScript string methods — nothing you type is uploaded.
How does camelCase/snake_case handle text that already has spaces or punctuation?
The tool splits your text into words on spaces, punctuation, underscores, and hyphens, and also detects existing camelCase/PascalCase boundaries — so "jumps_over-the LazyDog" splits into five clean words before being rejoined in the case you pick.
What does Sentence case do with multiple sentences?
It lowercases everything first, then capitalizes the first letter after the start of the text and after each ".", "!", or "?" followed by a space — so multi-sentence paragraphs get every sentence capitalized correctly.
What's the difference between camelCase and PascalCase?
camelCase lowercases the first word and capitalizes the rest ("quickBrownFox"); PascalCase capitalizes every word including the first ("QuickBrownFox"). Both are common variable/class naming conventions in code.
How we compare
| Feature | Online Tool Store | Google Docs "match case" | convertcase.net |
|---|---|---|---|
| 9 cases in one place, including camelCase/snake_case | ✓ | Upper/lower/title only | ✓ |
| No file upload — runs in your browser | ✓ | ✓ | ✓ |
| No ads | ✓ | ✓ | Ad-supported |
Programming-style cases like camelCase and snake_case aren't built into most word processors, so Case Converter is the faster stop when you need a variable name or a slug, not just a capitalized heading.