Small tools. Better flow.

Case converter

Convert identifiers to camelCase, snake_case, and more.

Usage guide

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Input & options

Text 1 MB

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Result

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Code examples

Starting points for your own code. Run them in the environment shown below.

Node.js 22+ · ES module (.mjs)

Current inputs apply only to fields used by the example. Selected files are not embedded.

const text = "hello tools workspace";
const words = text.replace(/([a-z0-9])([A-Z])/g, "$1 $2")
  .replace(/([A-Z]+)([A-Z][a-z])/g, "$1 $2")
  .split(/[\s_-]+/).filter(Boolean).map(word => word.toLowerCase());
const capital = word => word[0].toUpperCase() + word.slice(1);
console.log({
  camelCase: words.map((word, i) => i ? capital(word) : word).join(""),
  PascalCase: words.map(capital).join(""),
  snake_case: words.join("_"),
  "kebab-case": words.join("-"),
  CONSTANT_CASE: words.join("_").toUpperCase(),
});

Put it to work

Convert identifiers to camelCase, snake_case, and more.

Details that matter

Format and meaning

Splits words at spaces, hyphens, underscores, and case boundaries.

Supported scope and limits

Text 1 MB

Split inputs that exceed the limit. If a format or algorithm is unsupported, choose a tool that matches your requirements instead of silently changing the format.