Case Converter

Transform text between six case styles instantly — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, and snake_case. Paste your text, click a style, and copy the result for code, headings, or data cleanup.

  • Free to Use
  • No Signup
  • Privacy Friendly

How to convert text case

  1. 1

    Paste your text

    Enter or paste text in the input field. Any length works — paragraphs, variable names, or titles.

  2. 2

    Pick a case style

    Click UPPERCASE, lowercase, Title Case, Sentence case, camelCase, or snake_case. Output updates live.

  3. 3

    Copy the result

    Use the copy button for the output. Count words with the word counter or check length with the character counter.

Text case types

  • UPPERCASE — all capital letters
  • lowercase — all small letters
  • Title Case — capitalize major words
  • Sentence case — capitalize first letter only
  • camelCase — join words, capitalize after first
  • snake_case — lowercase with underscores

Why Use This Tool?

  • Six Case Modes

    Upper, lower, title, sentence, camel, and snake case.

  • Live Output

    Converted text appears instantly as you type.

  • Copy Ready

    One click to copy the transformed text.

  • Private

    Your text never leaves the browser.

Frequently Asked Questions

What is camelCase?

camelCase joins words without spaces, lowercasing the first word and capitalizing subsequent words — e.g. myVariableName. Common in JavaScript and Java.

What is snake_case?

snake_case uses underscores between lowercase words — e.g. my_variable_name. Common in Python and database column names.

What is Title Case?

Title Case Capitalizes The First Letter Of Each Word. Used for headings and book titles.

Does it handle multi-line text?

Yes. All case modes work on multi-line input. Sentence case capitalizes only the first letter of the entire string.

Is this case converter free?

Yes. Free with unlimited conversions; text never leaves your browser.

Case Converter — TetraKits

Six Case Styles for Code and Copy

Developers renaming variables, writers fixing headline casing, and SEO editors normalizing titles all need fast case conversion. One tool covers programming conventions (camelCase, snake_case) and editorial styles (Title, Sentence) without manual retyping.