Case converter

Case Converter

Convert text to uppercase, lowercase, title case, sentence case, alternating case, camelCase, or snake_case. Type or paste, switch mode, copy instantly—runs locally.

SourceType or paste your text.

11 / 500 graphemes

Result

Hello World

11 graphemes · title

How to use

Type or paste text in the source box.
Choose a case mode in Converter settings; the result updates instantly.
Copy the converted result and paste it where you need it.

What is a case converter?

A case converter changes ordinary letter case and common identifier styles. It keeps your text local to your browser and does not create fancy Unicode text or small caps.

Uppercase and lowercase

Use Uppercase for all caps and Lowercase to normalize text.

Title Case and Sentence Case

Title Case capitalizes each whitespace-separated word. Sentence Case capitalizes only the first letter of the whole string and lowercases the rest.

camelCase and snake_case

Identifier modes use Latin letters and digits, so punctuation, emoji, and other scripts act as separators.

Frequently asked questions

What does this case converter do?

It instantly converts text to upper, lower, title, sentence, alternating, camel, or snake case in your browser.

Is this the same as fancy text or tiny text?

No. Fancy and tiny tools map letters to special Unicode glyphs. This page only changes ordinary letter case and naming style.

Try fancy text or tiny text for Unicode glyph styles.

Does sentence case handle every sentence?

This version capitalizes the first letter of the whole string and lowercases other letters, so multi-sentence punctuation rules are simplified.

Will camelCase or snake_case work with CJK or emoji?

Identifier modes tokenize on Latin letters and digits; other characters are separators or are dropped from tokens.

Is there a character limit?

Input is limited to 500 graphemes. Longer input is truncated.

Does it run locally?

Yes. Your text is converted locally in your browser and is not uploaded.

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