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Case converter
lower, UPPER, camelCase, PascalCase, snake_case, CONSTANT_CASE, Train-Case.
Use this free case converter to switch naming styles for code, APIs, SEO slugs, and documentation. It works entirely in your browser: your text never leaves this page.
Developers use camelCase and PascalCase for JavaScript and C#, snake_case for Python and Ruby, SCREAMING_SNAKE for constants, and Train-Case for titles. Click a button to transform the current text — edit and convert again as often as you need.
Try it
Paste or type text, then tap a format. Your text is not sent to any server — conversion runs in this browser tab only.