Case Converter

Convert Text Between camelCase, snake_case, kebab-case and More

Every developer has pasted a variable name into a linter and watched it fail because the casing did not match the project convention. The Case Converter fixes that in one click: paste any identifier, phrase, or file name, and get it back in camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, or Title Case. No more retyping long names like getUserProfileData by hand. It works entirely in your browser, so sensitive source code never leaves your machine. Whether you are preparing a pull request, renaming a database column, or generating URL slugs, the right casing matters more than most developers realize, because every language and framework ships with an opinionated convention.

How to Convert Text Case in Seconds

1. Open the Case Converter and paste your text into the input box. It accepts single words, whole sentences, or multi-line lists.
2. Choose the output style you need from the format buttons, for example camelCase, PascalCase, or snake_case.
3. Check the preview pane, which updates instantly as you type so you can compare every style at once.
4. Click the copy button next to the style you want to insert into your code or document.
5. For bulk work, paste a column of names and convert them all in a single pass.
6. If the result looks wrong, review the original separators, because underscores and spaces are split differently.

Real Example: camelCase to snake_case

A backend engineer migrating JavaScript code to Python needs every camelCase property renamed to snake_case. Instead of editing dozens of lines by hand, they paste the whole list into the converter and read off the new names.

The same process applies when you are renaming CSS classes to kebab-case or normalizing environment variable names to CONSTANT_CASE. Because the preview updates live, you can compare every output style before committing to one, which is especially useful when a shared codebase has not settled on a single convention yet.

Tips for Consistent Case Conversion

• Know your convention — JavaScript favors camelCase for variables, Python favors snake_case, and React components use PascalCase.
• Keep acronyms readable — decide once whether API becomes api or stays uppercase, and apply the same rule everywhere.
• Convert whole lists — paste many identifiers at once so every name follows the same style and nothing is missed.
• Check file names too — kebab-case is the standard for URLs and package names, not camelCase.
• Mind the language — match the convention of the file you are editing, because mixing camelCase and snake_case in one codebase is a common lint failure.

When to Use This Tool

• Language migration — porting code between languages that use different naming conventions.
• Database column naming — converting API JSON keys to snake_case table columns.
• Cleaner commits — renaming a whole module's exports without introducing inconsistent casing.
• Naming consistency — normalizing mixed casing across a legacy codebase before introducing a linter rule.

Frequently Asked Questions