Case Converter

Switch pasted text to uppercase, lowercase, title case, snake_case, kebab-case and other styles. Each button updates the input and result.

Change the case of a heading or derive a simple identifier from a label. Each transformation replaces the current textarea content, which makes successive changes easy to see.

  • 100% free
  • No registration
  • On your device
  • Modern browser
  1. 1Enter details
  2. 2View result
Converted ResultLive
Hello world! Welcome to Toolzavro.

Your input stays on this device for this operation. We don’t upload or store it.

About Case Converter

Change the case of a heading or derive a simple identifier from a label. Each transformation replaces the current textarea content, which makes successive changes easy to see.

Nine transformations

Includes sentence, title, camel, snake and kebab styles.

Editable output

The transformed text remains in the textarea.

How to use Case Converter

  1. 1

    Paste the original text

    Paste a heading or label in Input Text.

  2. 2

    Choose a case style

    Choose the case button for the intended destination.

  3. 3

    Copy the transformed text

    Review the Converted Result and copy it. Paste the original again to compare styles.

Formats and practical limits

Pasted text in, transformed text out in the same input and result.

  • Title and sentence modes are mechanical rules without a language or style-guide selector.
  • Snake and kebab modes remove characters outside their ASCII allowlists. Keep an original copy when spelling or punctuation matters.

Practical example

From release notes, Title Case produces Release Notes and snake_case produces release_notes.

Further reading

Frequently Asked Questions

2 answers
Does Title Case keep small words lowercase?

It applies a simple capitalization rule rather than editorial title conventions.

Can I reverse the change?

Some transformations discard casing or characters, so reuse the original text to compare.