Case Converter

Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case and more in one click.

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About

About the Case Converter

Converts pasted text into any of eleven common cases, from UPPERCASE and Title Case to camelCase and snake_case, with one click each.

Developers use it to rename an identifier into the naming convention a language expects, while writers use it to fix text typed in the wrong case. It's one of many free text tools on Toolapt, and like every tool here, it's free to use with no sign-up and no limit on how many times you run it.

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Guide

Using the Case Converter

  1. 1

    Step 1

    Paste or type your text into the Input box.

  2. 2

    Step 2

    Click the case you want to convert it to.

  3. 3

    Step 3

    Read the converted result in the Output box.

  4. 4

    Step 4

    Click Copy to copy it, or Clear to start over.

  • Converts to eleven different cases, including four programming-style cases (camelCase, PascalCase, snake_case, kebab-case)
  • Each case is one click away — no menu or dropdown to hunt through
  • Handles multi-word phrases correctly when converting to programming cases
  • Works entirely in your browser — no installs and no sign-up
  • Free to use, with no limit on how many times you run it
  • Fully responsive, so it works just as well on a phone as on a desktop

Developers

Developers use the Case Converter for renaming a variable or identifier into the naming convention a language expects.

Writers and editors

Writers and editors use the Case Converter for fixing text that was typed in the wrong case, like an accidentally all-caps heading.

Students

Students use the Case Converter for formatting a title or heading into proper Title Case for an assignment.

Social media managers

Social media managers use the Case Converter for quickly switching a caption's case for style or emphasis.

Examples

Case Converter examples

3 worked examples

01

Title Case

"the great gatsby" becomes "The Great Gatsby".

02

snake_case

"User First Name" becomes "user_first_name", ready for a database column.

03

kebab-case

"My Blog Post Title" becomes "my-blog-post-title", ready for a URL slug.

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FAQ

Frequently asked questions

Quick answers to common questions about the Case Converter.

What does the Case Converter do?

It converts pasted text into any of eleven cases — from UPPERCASE and Title Case to programming styles like camelCase and snake_case — with one click.

Is the Case Converter free to use?

Yes. It's free, with no sign-up, no watermark and no limit on how many times you use it.

Is my input safe when I use this tool?

Yes. What you type is processed entirely on your own device — nothing is sent to a server.

What's the difference between camelCase and PascalCase?

camelCase starts with a lowercase letter (thisIsCamelCase); PascalCase starts with an uppercase letter (ThisIsPascalCase) — both remove spaces and capitalize each word boundary.

What does "Invert" do?

It flips the case of every letter — uppercase becomes lowercase and lowercase becomes uppercase.

Can I convert multiple lines at once?

Yes. Paste as much text as you like into the Input box; every case conversion applies to the whole thing at once.

Can I use the Case Converter on my phone?

Yes. The page is fully responsive and works on mobile, tablet and desktop browsers alike.

Does the Case Converter have any limitations?

Programming-style cases (camelCase, snake_case, etc.) split words on spaces and punctuation, so unusual formatting in the input can occasionally split words differently than expected.

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