Case Converter

Convert text between cases — UPPERCASE, lowercase, Title, Sentence, camelCase, snake_case and kebab-case. In your browser.

Runs in your browser — your file never leaves your device

Frequently asked questions

Is Case Converter free to use?

Yes — Case Converter is completely free with no limits, no watermarks and no sign-up. It runs in your browser, so there is nothing to pay for.

Are my files uploaded or stored anywhere?

No. This tool does all its work locally in your browser using your own device's power. Your files never leave your device and we never see them.

Do I need to install anything or create an account?

No installation and no account needed. Case Converter works on any modern browser — Windows, Mac, Linux, Android and iPhone.

How do I use Case Converter?

Open the tool, add your file (or paste your content), adjust any options, then press “Convert case”. Your result is ready to download in seconds.

Replace text, with optional regex.

Sort, reverse, shuffle or dedupe lines.

Join lines or tidy whitespace.

Turn a title into a URL slug.

Is it prime? If not, see its factors.

Open old .sxw files as PDF.