Case Converter

What is Case Converter?

A case converter rewrites an identifier between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and other naming styles, and it handles a whole list line by line. The conversion runs inside the browser, which makes it handy for migrating field names and generating constants.

How to use Case Converter

1. 1Enter one identifier per line; pasting a whole batch works fine.
2. 2The tool produces the result in every target style at once.
3. 3Copy the column you need straight into your code.
4. 4Review the word splitting by hand for identifiers that contain digits or acronyms.

How do I do this in code?

Use the tool above for one-off work; for anything you repeat, move it into a script or your project.

const words = (input) =>
  input
    .replace(/([a-z0-9])([A-Z])/g, '$1 $2')
    .split(/[\s_-]+/)
    .filter(Boolean)
    .map((w) => w.toLowerCase());

const toCamel = (s) =>
  words(s)
    .map((w, i) => (i ? w[0].toUpperCase() + w.slice(1) : w))
    .join('');

Frequently asked questions