Do “Hello World” and “hello_world” produce the same output?

Yes. Everything is first split into lowercase words, then rejoined per style.

Can every result be used as a variable name?

No. A leading digit or reserved word can make a name invalid, and kebab-case is not a variable syntax in many languages. Check the target language.

How is HTTPServer split?

It becomes HTTP and Server before reconstruction, for example http_server.

Is every converted result a valid variable name?

Not necessarily. Reserved words, leading digits and permitted characters depend on the language. This changes naming style; it does not replace identifier validation.

Case converter

Convert between camelCase, snake_case, kebab-case, PascalCase and more

Computed in your browser

Enter English words, acronyms or an existing name to compare styles at once. Choose the form required by your language and coding conventions.

Input

camelCase
PascalCase
snake_case
SCREAMING_SNAKE_CASE
kebab-case
Train-Case
Title Case
UPPER CASE
lower case

Example

Input

HTTP server response

Example result

httpServerResponse
HttpServerResponse
http_server_response
http-server-response

The lines show camelCase, PascalCase, snake_case and kebab-case.

Technical details & limits

Identifier styles tokenize ASCII letters and digits, separators and camel boundaries, including acronyms such as HTTPServer. Non-ASCII segments are omitted in naming styles; whole-text case uses JavaScript Unicode casing. Reserved words, leading-character rules and language syntax are not validated.

About this tool

Convert names or phrases into camelCase, PascalCase, snake_case, kebab-case and related styles, with whole-text upper and lower case. Standardize identifiers, configuration keys and path names.

Use cases

Turn a backend snake_case field into the camelCase your frontend expects.
Produce constant names (SCREAMING_SNAKE_CASE).
Name a CLI flag or environment variable.

Notes

Split rules: non-alphanumeric characters are separators; a run of uppercase followed by lowercase is split (`URLPath` → `URL Path`).

FAQ

Do “Hello World” and “hello_world” produce the same output?: Yes. Everything is first split into lowercase words, then rejoined per style.
Can every result be used as a variable name?: No. A leading digit or reserved word can make a name invalid, and kebab-case is not a variable syntax in many languages. Check the target language.
How is HTTPServer split?: It becomes HTTP and Server before reconstruction, for example http_server.
Is every converted result a valid variable name?: Not necessarily. Reserved words, leading digits and permitted characters depend on the language. This changes naming style; it does not replace identifier validation.

Related tools

Case converter · Convert between camelCase, snake_case, kebab-case, PascalCase and more — Case converter — Tool illustration · dayeku.com