Text Case Converter
Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more. 100% client-side — your data never leaves your browser.
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About Text Case Converter
Different contexts require different text casings. Programming languages use camelCase and snake_case for variables, while URLs prefer kebab-case, and databases often use CONSTANT_CASE for constants. Writers need Title Case for headings and Sentence case for paragraphs. This tool converts any text into 10+ casing styles instantly — all in your browser, no data sent anywhere. Whether you are renaming variables, formatting blog titles, or cleaning up CSV data, you can switch between all common casings with a single click.
How It Works
- Paste or type your text in the input box.
- Click any of the case buttons (UPPERCASE, lowercase, Title Case, camelCase, etc.).
- The converted text appears instantly in the output box.
- Click Copy to grab the result, or Reset to start over.
✨ Key Features
- ✓Convert to 10+ case styles instantly
- ✓UPPERCASE, lowercase, Title Case, Sentence case
- ✓camelCase, PascalCase (for programming)
- ✓snake_case, kebab-case, CONSTANT_CASE (for code and URLs)
- ✓aLtErNaTiNg case (for fun or emphasis)
- ✓Preserves non-letter characters
- ✓Handles Unicode and multi-byte characters
- ✓Live character counter for input and output
- ✓One-click copy for any conversion
- ✓100% client-side — no data sent to any server
🎯 Common Use Cases
- →Converting variable names between naming conventions (camelCase ↔ snake_case)
- →Formatting blog post titles in Title Case
- →Preparing headlines and headings for websites
- →Normalizing CSV or database column names
- →Converting text for URLs (kebab-case)
- →Renaming files consistently
- →Fixing text typed with Caps Lock accidentally on
- →Cleaning up ALL CAPS text from old documents
💡 Advanced Tips & Pro Insights
- ▸camelCase and PascalCase treat spaces, hyphens, and underscores as word boundaries — "hello world", "hello-world", and "hello_world" all become "helloWorld".
- ▸snake_case and kebab-case are ideal for file names — kebab-case is preferred for URLs because search engines treat hyphens as word separators.
- ▸Title Case capitalizes the first letter of each word but leaves small words (a, an, the, and, or, of) lowercase in strict implementations. This tool capitalizes every word for simplicity.
- ▸CONSTANT_CASE (also called SCREAMING_SNAKE_CASE) is the standard for constants in most languages: MAX_RETRY_COUNT, API_BASE_URL.
- ▸camelCase is used in JavaScript, Java, and Swift; snake_case in Python, Ruby, and Rust; PascalCase for classes and React components.
Frequently Asked Questions
Is this text case converter free?▾
Yes, this text case converter is completely free with no signup, registration, or usage limits.
Is my text safe?▾
Yes, 100% safe. All conversion happens locally in your browser. Your text never leaves your device and is never sent to any server.
What cases does this tool support?▾
UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE (SCREAMING_SNAKE_CASE), and aLtErNaTiNg case.
What is the difference between camelCase and PascalCase?▾
camelCase starts with a lowercase letter (myVariableName). PascalCase starts with an uppercase letter (MyClassName). Both capitalize the first letter of each subsequent word.
What is the difference between snake_case and kebab-case?▾
snake_case uses underscores (my_variable_name) and is common in Python, Ruby, and Rust. kebab-case uses hyphens (my-variable-name) and is preferred for URLs because search engines treat hyphens as word separators.
Does the tool handle Hindi or Unicode text?▾
Yes, the tool correctly handles Unicode characters including Hindi, Arabic, emoji, and other multi-byte characters. Case conversion only affects characters that have case variants (Latin, Cyrillic, Greek).
What is aLtErNaTiNg case?▾
aLtErNaTiNg case alternates uppercase and lowercase letters (like the SpongeBob meme). It has no formal use in programming but is used for emphasis or humor.
Will the tool change my punctuation or numbers?▾
No, punctuation, numbers, and symbols are preserved as-is. Only letters are affected by case conversion.