Case Converter: change text case instantly

Paste your text, choose a case style, and copy the result. Supports UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more. Everything runs in your browser.

Your text 0 words
0 characters
Converted text -
Private by design. Your text is processed only in this browser using pure vanilla JavaScript. Nothing is uploaded and no external libraries are used.
About this tool

How to use the Case Converter

  1. 1
    Paste or type your text Add your text into the input box on the left.
  2. 2
    Choose a case style Click one of the case buttons in the right panel. The converted text will appear instantly.
  3. 3
    Copy the result Click the Copy Result button to save the text to your clipboard, or simply select it manually.

Special features

10 case formats UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, aLtErNaTiNg, and InVeRsE.
Instant conversion Click any case button and see the result immediately. No page reloads, no waiting.
Live character count Track the exact length of your input and output text as you type and convert.
100% private No upload, no account, no analytics, no cookies, no external libraries. Your text stays in the browser.
Offline capable Because the tool is built entirely with vanilla JavaScript, it works completely offline after the page loads.
Safe rendering All output is treated as plain text. No raw HTML is injected into the page, keeping you safe from XSS.

Frequently asked questions

Is this case converter free?

Yes. The BlowFix Case Converter is completely free, with no account, no signup, and no usage limit.

Which case formats are supported?

The tool supports UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, aLtErNaTiNg cAsE, and InVeRsE cAsE.

Is my text safe?

Yes. Your text is processed entirely in your browser. It is never uploaded, stored, or sent anywhere. The tool does not use cookies, analytics, or localStorage.

Does the tool work offline?

Yes. Because the tool is built entirely with vanilla JavaScript, it works completely offline after the page loads.