How do I convert text to uppercase, lowercase, or title case?

Paste text and choose a case style (UPPER, lower, Title, camelCase, snake_case, etc.). The result updates instantly in your browser.

Which case styles are supported?

UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab-case, SENTENCE case, and more.

Is the online case converter private?

Yes. Conversion is 100% client-side; your text is never uploaded.

Home › Tools › Text Case Converter

Text Case Converter

Text Case Converter — free online text tool, 100% client-side. No upload, no signup, no tracking. Private by design.

Input text

Convert Text Case Online — UPPER, lower, Title, camelCase

Instantly convert text between uppercase, lowercase, Title Case, camelCase, snake_case, kebab-case, and sentence case. This free online text case converter is a staple for writers, developers, and anyone cleaning up copy — fast and fully private.

Why this tool is useful

Fix ALL CAPS emails or shouts into normal text.
Format identifiers for code (camelCase, snake_case, kebab-case).
Title-case headings and titles consistently.

How it works (client-side)

Paste your text into the box.
Click any case button to transform it.
Copy the result — all conversions run locally.

Frequently asked questions

Which cases are supported?

UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case, and aLtErNaTiNg.

Does it handle accented characters?

Yes — conversions are unicode-aware via JavaScript's toLocaleLowerCase/toLocaleUpperCase.

Is my text uploaded?

No. Everything happens in your browser.