freetools.guru

Case Converter

Convert text between uppercase, lowercase, sentence case, title case, and more. Change letter case in your browser with support for camelCase, snake_case, and other formats.

Choose a conversion

Applies small-word rules only when an English locale is selected.

Letter case

Developer naming styles

Cleaning & normalization

Live statistics

0
Characters
0
Words
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Lines
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Uppercase letters
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Lowercase letters
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Changed characters
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Output characters

Your text is processed only in your browser and is not uploaded.

How it works

  1. 1Enter your text. Type or paste the text you want to convert.
  2. 2Choose a conversion. Select a case such as UPPERCASE, lowercase, Title Case, or snake_case.
  3. 3Review the result. See the converted text instantly alongside the original.
  4. 4Copy or download. Copy the result or save it as a TXT file.

Frequently Asked Questions

Is this Case Converter free?
Yes. The Case Converter is completely free and works directly in your browser.
Is my text uploaded?
No. Your text is converted only in your browser and is never uploaded to any server.
What is the difference between sentence case and title case?
Sentence case capitalizes only the first letter of each sentence. Title case capitalizes the first letter of every major word while leaving small words like 'and' or 'the' lowercase.
What casing formats can I convert to?
You can convert to UPPERCASE, lowercase, Sentence case, Title Case, alternating case, and code-friendly formats such as camelCase, PascalCase, snake_case, kebab-case, and more.
Does it support Tamil and other languages?
Yes. The tool supports Unicode text including Tamil, Hindi, English, and mixed-language content. It uses locale-aware casing so scripts such as Turkish behave correctly.
Can I find and replace text?
Yes. The Find and Replace feature can swap text case-sensitively or ignore case, and can limit matches to whole words.
Is there a text limit?
The browser-based limit is 1,000,000 characters. A warning appears as you approach the limit.

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Supported text

Convert Unicode text including English, Tamil, Hindi and mixed-language content directly in your browser. Locale-aware casing is used for scripts such as Turkish where uppercase and lowercase forms differ.

Privacy & data removal

Your text is processed entirely in your browser and is never uploaded. No account is required to use the Case Converter, and we never store or share your text.