Case Converter & Text Formatter
Convert words and sentences into any letter case instantly. Transform text into Title Case, UPPERCASE, lowercase, camelCase, snake_case, and more with 100% private in-browser processing.
Case Conversion Modes
Click any button to applyCatch typos in images, slides, DOCX, or PDFs
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Guide to Letter Casing & Naming Conventions
Learn when to apply different capitalization styles across writing, design, and software engineering.
Headlines & Book Titles
Follows editorial guidelines (such as Chicago, APA, or AP). Capitalizes major words (nouns, pronouns, verbs, adjectives), while leaving articles (a, an, the) and short prepositions (in, on, of) lowercase.
Modern UX & Body Copy
Capitalizes only the first letter of each sentence and proper nouns. Recommended by Apple, Google Material Design, and Microsoft for modern digital interfaces and button labels.
Programming Identifiers
Removes spaces and joins words. camelCase begins lowercase (userProfile) for functions and variables. PascalCase begins uppercase (UserProfile) for classes and React components.
Database & Environment Keys
Separates words using underscores. Widely used in Python, SQL schemas, and database column names. CONSTANT_CASE is standard for environment variables and immutable configuration settings.
SEO URLs & CSS Classes
Separates words with hyphens (page-title-header). Favored by Google search crawlers for clean slug URLs and standard in HTML/CSS class naming.
Space & Line Formatter
Instantly sanitizes copied text by eliminating double spaces, excessive line breaks, and converting curly smart quotes into standard straight quotes for clean code pasting.