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Case Converter

Convert text between different cases. This tool runs 100% locally in your browser.

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Tip: Use Ctrl+1 for lowercase, Ctrl+2 for UPPERCASE, Ctrl+3 for Title Case

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What is Case Converter?

The Case Converter is a comprehensive text transformation tool that automates the process of changing text capitalization. Whether you need to fix a document typed with accidental Caps Lock, format a professional heading in Title Case, or prepare variable names for programming (such as camelCase or snake_case), this utility provides instant results. It supports multiple transformation modes including UPPERCASE, lowercase, Title Case, Sentence case, and specialized coding formats. This eliminates the need for manual retyping, saving time and reducing the risk of typographical errors in large datasets or long-form content.

When to Use This Tool

  • 1Fixing accidental Caps Lock typing
  • 2Formatting headlines (Title Case)
  • 3Standardizing data imports (e.g., converting emails to lowercase)
  • 4Preparing text for coding variable names (camelCase, snake_case)

Examples

Input
hello world
Result
HELLO WORLD (Upper Case)
Input
hello world
Result
Hello World (Title Case)

Frequently Asked Questions

What is Sentence Case?

Sentence case capitalizes only the first letter of the first word in a sentence (and proper nouns, if detected).

Can I convert text back to original?

Yes, you can toggle between different modes as many times as you like.

Privacy & Security

Privacy is our priority. Unlike many other online tools, ToolsHub doesn't upload your data to any server. Whether you're processing sensitive text, calculating financial data, or generating passwords, everything stays in your browser.