Uppercase / Lowercase Converter
Easily transform text capitalization. Switch to UPPERCASE, lowercase, Sentence case, Capitalized Words, Title Case, camelCase, PascalCase, snake_case, or kebab-case with one click.
Step-by-Step Instructions
Input Text String
Enter or paste your raw text, code identifier, database column name, or article title into the input field.
Choose Target Case Transformation
Select from uppercase, lowercase, title case (AP/Chicago style), sentence case, camelCase, snake_case, kebab-case, PascalCase, or CONSTANT_CASE.
Review Transformed String
Check the instant transformation output formatted according to grammatical rules or programming language conventions.
One-Click Copy to Clipboard
Click the copy button to transfer your converted string directly to your code editor, document, or publishing CMS.
Key Features & Capabilities
- Extensive conversion suite: Title Case, Sentence case, UPPERCASE, lowercase, camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE
- Smart Title Case engine recognizing English minor words (articles, conjunctions, short prepositions) according to AP and Chicago Manual of Style
- Developer variable converter parsing delimiter boundaries (underscores, hyphens, uppercase transitions) smoothly
- Special character and accented Unicode glyph preservation across Latin, Cyrillic, and extended character sets
- Instant real-time transformation with zero latency and zero server roundtrips
- Quick clipboard actions and character count feedback on transformed output
Frequently Asked Questions
What rules does the Title Case converter follow for capitalizing words?
The Title Case algorithm adheres to standard AP / Chicago Manual of Style editorial rules. It capitalizes the first and last words of the title and all major words (nouns, verbs, adjectives, adverbs), while keeping short grammatical words in lowercase (e.g., 'a', 'an', 'the', 'and', 'but', 'or', 'for', 'nor', 'in', 'on', 'at', 'to', 'by') unless they begin or end the phrase.
What is the difference between camelCase, PascalCase, snake_case, and kebab-case?
In programming: camelCase begins with a lowercase letter with subsequent words capitalized (userProfileId), PascalCase capitalizes every word (UserProfileId), snake_case joins lowercase words with underscores (user_profile_id), and kebab-case uses hyphens (user-profile-id).
Can I convert multi-line text and code snippets at once?
Yes. The converter handles large multi-line strings, code identifiers, SQL queries, or full blog posts while preserving line breaks and paragraph formatting.
Does the sentence case converter capitalize after periods and punctuation?
Yes. Sentence case capitalizes the initial character of each sentence following terminal punctuation marks (., !, ?) and newlines, while converting intermediate non-proper nouns to lowercase.
Is this case conversion tool secure for proprietary code and confidential text?
Yes. All case conversions execute directly within your browser's JavaScript engine. No source code or text strings are uploaded over the internet.
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