What is case conversion?

Case conversion changes the capitalization pattern of text. Common conversions include UPPERCASE (all caps), lowercase (no caps), Title Case (first letter of each word capitalized), and programming formats like camelCase, snake_case, and kebab-case. Our tool supports 10+ case formats with instant conversion.

What is camelCase and when is it used?

camelCase joins words with no separator, lowercasing the first word and capitalizing subsequent words (e.g., 'myVariableName'). It's the standard naming convention for variables and functions in JavaScript, TypeScript, Java, and C#. PascalCase is similar but capitalizes the first word too (e.g., 'MyClassName').

What is the difference between snake_case and kebab-case?

snake_case uses underscores between words (e.g., 'my_variable_name') and is standard in Python, Ruby, and SQL. kebab-case uses hyphens (e.g., 'my-class-name') and is standard for CSS classes, URL slugs, and HTML attributes. Both are always lowercase.

How does Title Case work?

Title Case capitalizes the first letter of every word while lowercasing the rest. For example, 'the quick brown fox' becomes 'The Quick Brown Fox'. Some style guides (AP, APA) have rules about not capitalizing short prepositions and articles, but our tool capitalizes all words for consistency.

Can I convert between programming case formats?

Yes! Our converter handles all programming naming conventions: camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and dot.case. It intelligently splits words from any input format (even mixed formats like camelCase or snake_case) and converts to your target format.

What is CONSTANT_CASE?

CONSTANT_CASE (also called SCREAMING_SNAKE_CASE) uses all uppercase letters with underscores between words (e.g., 'MAX_RETRY_COUNT'). It's the standard convention for constants, environment variables, and configuration values in most programming languages.

Case Converter

Our case converter transforms text between 10+ case formats instantly. Convert to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and alternating case. Ideal for developers converting variable names, writers formatting titles, and anyone needing quick text case changes. Copy results with one click. All processing happens in your browser.

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calendar_today Updated: April 2026

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Input Text

Writing Formats

UPPERCASE content_copy

lowercase content_copy

Title Case content_copy

Sentence case content_copy

Developer Formats

camelCase content_copy

PascalCase content_copy

snake_case content_copy

kebab-case content_copy

CONSTANT_CASE content_copy

dot.case content_copy

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Case Analysis:

Formats: UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case

Tip: camelCase for JS vars, snake_case for Python, kebab-case for CSS.

lightbulb Tips

•camelCase for JS, snake_case for Python
•PascalCase for class names in most languages
•kebab-case for CSS classes and URL slugs
•CONSTANT_CASE for env vars and constants

How to Use This Calculator

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Enter Text

Type or paste your text into the input area.

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See All Formats

All case conversions appear instantly with live preview.

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Copy Result

Click the copy button next to any format to copy it to clipboard.

The Formula

Case conversion splits text into words (by spaces, underscores, hyphens, or camelCase boundaries), then rejoins them using the target format's rules. For programming cases (camelCase, snake_case, kebab-case), the text is first normalized to individual words, then formatted with the appropriate separator and capitalization pattern.

camelCase → split words → lowercase first, capitalize rest → join

lightbulb Variables Explained

UPPERCASE All letters converted to uppercase (A-Z)
lowercase All letters converted to lowercase (a-z)
Title Case First letter of each word capitalized
camelCase First word lowercase, subsequent words capitalized, no separator
snake_case All lowercase, words separated by underscores
kebab-case All lowercase, words separated by hyphens

tips_and_updates Pro Tips

camelCase is standard for JavaScript/TypeScript variables and function names

PascalCase is used for class names in most programming languages

snake_case is standard in Python, Ruby, and database column names

kebab-case is used for CSS class names, URL slugs, and HTML attributes

CONSTANT_CASE (SCREAMING_SNAKE) is for constants and environment variables

Title Case capitalizes the first letter of each word — ideal for headings

Use Sentence case for regular text — only capitalize the first word

Convert Text Case Online — All Formats

Our free case converter transforms text between 10+ formats instantly. Convert to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more. One-click copy, live preview. Perfect for developers, writers, and content creators.

Text Case Converter - UPPER, lower, Title, Sentence

Convert any text to UPPERCASE, lowercase, Title Case, or Sentence case instantly. Perfect for formatting headings, titles, and body text. Our converter handles all Unicode characters including accented letters and international text.

Developer Case Converter - camelCase, snake_case, kebab-case

Convert between programming naming conventions instantly. Transform variable names, function names, and identifiers between camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and dot.case. Essential tool for developers working across multiple languages.

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