case-converters

⚠️ Not to be confused with the deprecated case-converter.
✅ case-converters is a modern, actively maintained package with full TypeScript support, robust object key transformation, and support for 15+ string casing styles.

case-converters is a lightweight yet powerful utility to convert strings and object keys into a wide range of naming conventions — like camelCase, PascalCase, snake_case, kebab-case, Train-Case, SpongeCase, and more.

• ✔ Supports string and object key transformation
• ✔ Works with arrays of objects
• ✔ ESM & CommonJS compatible
• ✔ 100% written in TypeScript

📚 Table of Contents

• 📦 Supported Case Styles
• 🔧 Installation
• 🚀 Quick Usage
  • 🔹 String Case Conversion
  • 🔹 Object Key Case Conversion
• 📘 API Reference
  • 🔹 String Methods
  • 🔹 Object Key Methods
• 🌐 Live Demo
• 🔗 Links
• 📄 License
• 📬 Contact

📦 Supported Case Styles

• camel, pascal, snake, kebab, constant, dot, path, title, sentence, capital, train
• sponge, swap, upper, lower, no, localeUpper, localeLower, lowerFirst, upperFirst
• ... and more!

🔧 Installation

npm install case-converters

## 🚀 Quick Usage

### 🔹 String Case Conversion

#### CommonJS

```js
const { camel, upper } = require("case-converters");

console.log(camel("test string")); // testString
console.log(upper("test string")); // TEST STRING

ES Modules / TypeScript

import { Case } from "case-converters";

console.log(Case.camel("test string")); // testString
console.log(Case.upper("test string")); // TEST STRING

🔹 Object Key Case Conversion

Convert keys of an object (or array of objects):

const { objToCamel, objToPascal } = require("case-converters");

const input = [{ user_name: "Alice" }, { user_name: "Bob" }];

console.log(objToCamel(input));
console.log(objToPascal(input));

📘 API Reference

🔹 String Methods

You can use either the Case class or direct function imports:

import {
  camel,
  capital,
  constant,
  dot,
  no,
  pascal,
  path,
  sentence,
  snake,
  train,
  kebab,
  sponge,
  swap,
  title,
  upper,
  localeUpper,
  lower,
  localeLower,
  lowerFirst,
  upperFirst,
  isUpper,
  isLower,
} from "case-converters";

const str = "test string";

camel(str);
pascal(str);
snake(str);
// ...

Or use the class style:

import { Case } from "case-converters";

Case.kebab(str);
Case.title(str);

🔹 Object Key Methods

Available functions:

• objToCamel(obj)
• objToPascal(obj)
• objToSnake(obj)
• objToKebab(obj)
• objToConstant(obj)
• objToCapital(obj)
• objToTrain(obj)
• objToTitle(obj)
• objToSentence(obj)
• objToDot(obj)
• objToPath(obj)
• objToNot(obj)
• objToSponge(obj)
• objToSwap(obj)
• objToUpper(obj)
• objToLower(obj)

Example:

const obj = { first_name: "John", last_name: "Doe" };
console.log(objToCamel(obj));

🌐 Live Demo

Try it online:
👉 StackBlitz Live Demo

🔗 Links

• 🧠 GitHub: cvchauhan/case-converter
• 📦 npm: case-converters

📄 License

ISC © Chirag Chauhan

📬 Contact

For questions, suggestions, or collaborations:

• GitHub: @cvchauhan
• Email: [email protected]