Case Converter: Convert Text to camelCase, snake_case, Title Case, and More

TL;DR — The Case Converter handles 10+ cases including developer formats (camelCase, snake_case, kebab-case, PascalCase, CONSTANT_CASE). Clean text first with the Text Cleaner; verify length with the Word Counter.

The case cheat sheet

Case	Example	Where it’s used
UPPERCASE	HELLO WORLD	Acronyms, legal warnings
lowercase	hello world	URLs, email addresses
Title Case	Hello World	Headlines, book titles
Sentence case	Hello world	Body text, descriptions
camelCase	helloWorld	JavaScript, Java, Swift variables
PascalCase	HelloWorld	Class names, React components
snake_case	hello_world	Python, Ruby variables; database columns
SCREAMING_SNAKE_CASE	HELLO_WORLD	Constants, env vars
kebab-case	hello-world	URLs, CSS classes, file names
aLtErNaTiNg cAsE	hElLo WoRlD	Memes and sarcasm

Convert in 5 seconds

1. Open the Case Converter.
2. Paste your text.
3. Every case renders live in its own card. Click to copy.

Real situations this saves

• Variable renames. "user first name" → userFirstName instantly, no manual capitalization.
• Database migration. Converting Java camelCase columns to Postgres snake_case in bulk.
• URL slug from a title. "How to Use Next.js 16" → how-to-use-next-js-16.
• Env vars. "database url" → DATABASE_URL.
• Caps Lock recovery. A pasted paragraph in ALL CAPS → proper Sentence case without retyping.
• Headline formatting. Convert article titles to AP-style Title Case for consistency.

The Title Case nuance

"Title Case" isn’t one rule — there are several conventions:

• AP style — capitalize words of 4+ letters; lowercase short prepositions/articles ("of", "and", "the").
• Chicago Manual — capitalize the first and last word, plus all major words.
• APA — sentence case for paper titles.
• Simple Title Case — capitalize every word (most common in tools).

The Case Converter offers both Simple Title Case and AP-style options.

FAQ

What’s the difference between camelCase and PascalCase?

Both join words with no separator. camelCase starts lowercase (userId), PascalCase starts uppercase (UserId). Languages: camelCase for variables in JS/Java; PascalCase for class names everywhere.

Why does snake_case still exist?

Python and Ruby community conventions; lowercase-only file systems on older Linux; database column conventions; and it remains easier to read for long identifiers (get_user_by_email vs getUserByEmail).

How do I convert to a URL-safe slug?

kebab-case is the standard. For pure URL conversion (with accent stripping and special-char handling), use the Slug Generator.

Does the converter handle non-English text?

Yes — Unicode-aware casing for most languages, including locale-correct rules for Turkish (dotted vs dotless I) and German (ß ↔ SS).

Text-format toolkit

• Case Converter — every case in one place.
• Text Cleaner — normalize whitespace first.
• Word Counter — verify length after.