Case Converter Tools

Four small tools for changing how text is capitalized. Pick the one that matches what you're actually converting.

Upper / Lower

UPPERCASE, lowercase, or Sentence case — locale-aware, so Turkish, German and Greek letters convert correctly.

AP, Chicago, MLA and APA each capitalize headlines differently. Pick your style and see the difference.

Convert identifiers between camelCase, PascalCase, snake_case, kebab-case and SCREAMING_SNAKE_CASE.

tUrN aNy SeNtEnCe into alternating case for memes and sarcastic replies.

Which One Do You Need?

What you're doing	Use
Fixing a paragraph someone typed with Caps Lock on	Upper / Lower
Capitalizing a headline or article title to a style guide	Title Case
Renaming database columns or JSON keys between naming conventions	camelCase / snake_case
Making a sarcastic meme reply	Alternating Case
Getting a name or word in ALL CAPS or all lowercase	Upper / Lower
Converting a Python variable name for use in JavaScript	camelCase / snake_case

What you're doing

Use

Fixing a paragraph someone typed with Caps Lock on

Capitalizing a headline or article title to a style guide

Renaming database columns or JSON keys between naming conventions

Making a sarcastic meme reply

Getting a name or word in ALL CAPS or all lowercase