Case Converter

Convert text between UPPERCASE, lowercase, camelCase, snake_case and more

UPPERCASE
lowercase
Title Case
Sentence case
camelCase
PascalCase
snake_case
kebab-case
CONSTANT_CASE
dot.case
aLtErNaTiNg
Inverse
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Quickly convert any text between common case formats — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE. Useful for cleaning up data, renaming variables, or formatting headlines.

How to convert text case

1
Paste your text

Type or paste any text into the input field.

2
Pick a case

Choose UPPERCASE, lowercase, camelCase, snake_case, or any of the other formats.

3
Copy the result

Click Copy next to the output and paste it wherever you need it.

🔠
11 case formats

Switch between every common letter-case format with a single click.

⚡
Live preview

Conversions update instantly as you type — no buttons required.

📋
Copy in one click

Each output has a Copy button so you can paste the result anywhere.

🔒
100% private

Text never leaves your browser — there is nothing to upload.

FAQ

UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and aLtErNaTiNg cAsE.

Title Case capitalizes the first letter of every word; Sentence case capitalizes only the first letter of each sentence.

camelCase is the convention in JavaScript and Java, while snake_case is more common in Python, Ruby and SQL identifiers.

Yes. Conversions use JavaScript's locale-aware case methods, so accents and non-Latin alphabets are preserved.

No. All processing happens locally in your browser — nothing is ever sent to a server.

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