Case Converter (camelCase / snake_case)
Convert names between camelCase, PascalCase, snake_case, CONSTANT_CASE and kebab-case — acronyms and digits handled correctly, many lines at once.
Runs in your browser: input and output are never sent to the server, and the platform does not store your input.
Output
Fill in the fields on the left, then run.
How to use
- 1Paste one or more names, one per line, in any format.
- 2Pick the target format, or “All formats” to see every spelling at once.
- 3Copy the result back into your code.
FAQ
How are acronyms handled?
A run of capitals counts as one word: XMLHttpRequest splits into xml, http, request, so snake_case gives xml_http_request.
What about digits?
Digits stay with the word before them: utf8Encoder becomes utf8_encoder, not utf_8_encoder.
Where is each format usually used?
camelCase for JavaScript variables and functions, PascalCase for classes and components, snake_case for Python and database columns, CONSTANT_CASE for constants and environment variables, kebab-case for URLs and CSS classes.
Is my input uploaded?
No. The conversion runs in your browser; no sign-in and no quota.