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Case Converter — UPPER, lower, Title, camelCase & More (Free)

Convert text between 11 cases — UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case and more — privately in your browser.

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Eleven cases, one paste

Rename a variable, reformat a headline, fix a sentence written with Caps Lock on — each is a different case transformation. Instead of hunting for a single-purpose site per task, paste once and copy whichever row you need.

The eleven cases cover the classics (UPPER, lower, Title, Sentence) plus developer formats: camelCase and PascalCase for code, snake_case and CONSTANT_CASE for Python and env vars, kebab-case for CSS and URLs, and the novelty aLtErNaTiNg and iNVERSE cases.

Title Case follows the editorial convention of keeping short function words (a, an, the, of, to…) lowercase mid-title. Your original input is never modified — every output is a copy away.

How to use Case Converter

  1. 1Paste the text you want to convert.
  2. 2Review the 11 output rows — UPPER, lower, Title, Sentence, camelCase, and more.
  3. 3Click “Copy” next to the case you need.
  4. 4Your original input stays exactly as you typed it.

Case Converter FAQ

Which cases does this support?
UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, aLtErNaTiNg, and iNVERSE — 11 in total, each with one-click copy.
Does Title Case keep small words lowercase?
Yes — articles, conjunctions, and short prepositions (a, an, the, of, to…) stay lowercase mid-title, as style guides recommend.
Is my text uploaded?
No. Conversion runs entirely in your browser; your text never leaves the tab.
Does it handle accented or non-English letters?
Yes. UPPER, lower, Title, and Sentence use Unicode-aware casing, so accented letters convert correctly. The developer cases (camel, snake, kebab) split on non-alphanumeric runs by design.

Updated 26 August 2026

What is Case Converter?

Convert text between 11 cases — UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case and more — privately in your browser.

  • Eleven rows update as you type: editorial cases plus camel, snake, kebab, CONSTANT.
  • Title Case keeps short function words lowercase mid-title.
  • Your original paste is never overwritten — each row is a copy target.

How to use it

  1. Paste the text you want to convert.
  2. Review the 11 output rows — UPPER, lower, Title, Sentence, camelCase, and more.
  3. Click “Copy” next to the case you need.
  4. Your original input stays exactly as you typed it.