Case Converter

About Case Conversion

Different programming languages, frameworks, and contexts use different naming conventions. Converting between them is a common task when refactoring code, mapping API responses to variable names, or working across multiple languages. This tool handles all the major naming conventions used in software development.

Naming conventions and when they are used

• camelCase — Variables and functions in JavaScript, Java, Kotlin, Swift. Example: getUserProfile
• PascalCase / UpperCamelCase — Class names in most OOP languages (Java, C#, PHP, Python). React component names. Example: UserProfileService
• snake_case — Variables and functions in Python, Ruby, PostgreSQL, Rust. JSON API fields in some APIs. Example: get_user_profile
• SCREAMING_SNAKE_CASE — Constants in most languages (Python, C, Java). Environment variables. Example: MAX_RETRY_COUNT
• kebab-case — CSS class names, HTML attributes, URL slugs, command-line flags. Example: user-profile-card
• dot.case — Configuration keys in some frameworks and logging systems. Example: user.profile.name

Common conversion scenarios

• Mapping a JSON API response with snake_case keys to JavaScript variables in camelCase
• Converting database column names (user_first_name) to PHP property names (userFirstName)
• Creating a URL slug from a page title (My Great Blog Post → my-great-blog-post)
• Generating a constant name from a variable name for use in configuration