Case Converter — what it does
Converts text between UPPERCASE, lowercase, Title Case, Sentence case and camelCase/Pascal_case/snake_case/kebab-case in one click. Built for developers normalising identifiers, writers fixing a caps-lock accident, and anyone who has pasted a SHOUTING paragraph and needed it calm again.
How to use Case Converter
- Paste the text into the input box.
- Click the target case — the result appears in the output box instantly.
- For Title Case, check the small-words handling; sentence-style capitals stay sane.
- Use snake_case/kebab-case/camelCase for variable and file names; spaces become separators.
- Copy the output with the copy button and clear when done.
Worked example: from prose to a slug-safe filename
Heading text 'Q3 Revenue Report — Final!' becomes q3-revenue-report-final in kebab-case: punctuation dropped, spaces hyphenated, lowercase throughout. The same input as camelCase gives q3RevenueReportFinal for a variable name. Doing this by hand invites the stray space that breaks a build; the converter makes the convention automatic.
At a glance
| Cases | UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case |
|---|---|
| Behaviour | One-click convert, separate output box, copy button |
| Smart bits | Separator handling for code cases; punctuation kept where meaningful |
| Privacy | Pure client-side transforms — your text is never transmitted |
| Limits | No language-specific capitalisation rules (e.g. German nouns) — it follows English conventions |
Frequently asked questions
- What is Case Converter?
- Convert text between lower, UPPER, Title, camelCase, snake_case, kebab-case and more.
- Is Case Converter free to use?
- Yes — Case Converter is free to use, with no sign-up, no install and no account.
- Does Case Converter upload or store my data?
- No — Case Converter runs entirely in your browser, so your text, files and results never leave your device.
- Do I need to install anything to use Case Converter?
- No — it works in any modern browser (Chrome, Edge, Firefox, Safari) with no downloads, accounts or plugins.
- Which case should I use for file names?
- kebab-case is the web convention: lowercase, hyphens, no spaces. URLs and most static hosts treat it most predictably, and it matches what this tool's slug-style output produces.
- Does Sentence case handle 'I' and proper nouns?
- It capitalises sentence starts. Names like 'Delhi' or the pronoun 'I' mid-sentence are not auto-recognised — a quick manual pass fixes those few.
- Why convert to Title Case manually at all?
- Because titles are inconsistent by hand: 'The Quick Brown Fox' vs 'the Quick brown fox'. One click applies the same rule to every word, every time.