DevDeck

Text Case Converter โ€” UPPER, lower, camelCase

Different coding conventions demand different text cases: API fields use camelCase, Python uses snake_case, CSS uses kebab-case, constants use UPPER_CASE. Text Case Converter transforms any text between all these formats instantly.

What is Text Case Conversion?

Text case conversion changes the capitalization format of a string. The same phrase 'hello world' becomes HELLO WORLD, Hello World, helloWorld, hello_world, or hello-world depending on the target convention.

Why Use a Text Case Converter?

Renaming variables, formatting database column names, preparing API field names, or transforming user input โ€” case conversion is a constant developer task. Doing it manually is error-prone especially for multi-word identifiers. The converter handles it instantly.

Key Benefits

  • Converts to UPPER, lower, Title, camelCase, PascalCase, snake_case, kebab-case
  • Processes multi-word strings correctly
  • Copy each format independently
  • Handles special characters and numbers
  • Instant โ€” no page reload

How to Use Text Case Converter

  1. Paste or type your text
  2. All case variants appear immediately
  3. Click to copy the format you need
  4. Use for variable names, column names, labels, etc.

Example Use Case

You have a CSV column named `First Name` and need to map it to a JavaScript object key. Enter `First Name` โ†’ camelCase gives `firstName`, snake_case gives `first_name`, PascalCase gives `FirstName`. Pick the one matching your codebase convention.

Tips

  • camelCase: JavaScript object keys, JSON fields
  • PascalCase: React components, class names
  • snake_case: Python variables, SQL columns
  • kebab-case: CSS class names, URL slugs, HTML attributes
  • UPPER_CASE: constants in most languages

Ready to try it?

Related Tools

Word Counter & Character Counter

Whether you're writing a tweet (280 chars), a cover letter (400 words), or a bloโ€ฆ

Text Diff Tool

Spotting differences between two versions of text โ€” code, config, documents โ€” isโ€ฆ

Lorem Ipsum Generator

Lorem ipsum is the industry-standard placeholder text used in design mockups, wiโ€ฆ

Frequently Asked Questions

Yes, completely free.

Yes. Numbers are kept in place. Special characters are handled per each format's rules.

camelCase starts lowercase (helloWorld), PascalCase starts uppercase (HelloWorld).

DevDeck ยฉ 2023 - 2026

100% client-side โ€ข No data leaves your browser
Text Case Converter โ€” UPPER, lower, camelCase Guide | DevDeck