Transform your text into any case format. Perfect for naming variables, files, or anything else.
Converted Text
WELCOME TO THE CASE CONVERTER TOOL
34 characters, 6 words
Supports UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case conversions. Perfect for code variable names and file naming conventions.
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What is the Case Converter?
A case converter is a text formatting tool that changes the capitalization pattern of text without altering its content or meaning. It lets you switch between styles like UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab_case, and dot.case in one action.
How it works
The tool reads your input text and applies a capitalization rule to every character. For compound styles (camelCase, snake_case), it identifies word boundaries by looking for spaces, hyphens, underscores, or capital letters, then rebuilds the text with the correct caps and separators. The conversion is instant and preserves non-alphabetic characters and punctuation.
Examples
Input
Result
Notes
hello world
HELLO WORLD (uppercase) | hello world (lowercase) | Hello World (title case) | helloWorld (camelCase) | HelloWorld (PascalCase) | hello_world (snake_case) | hello-world (kebab-case)
One input, six common output styles—pick the one you need for code, docs, or branding.
Useful for converting database columns or environment variable names into JavaScript object keys.
the quick brown fox
The Quick Brown Fox (title case) | THE QUICK BROWN FOX (uppercase)
Title case is ideal for headlines, menu labels, and document titles.
How to use the Case Converter
Paste or type your text into the input field.
Select the target case style from the dropdown menu (uppercase, lowercase, title case, camelCase, PascalCase, snake_case, kebab-case, dot.case).
The tool converts your text instantly—no button press needed.
Copy the result by clicking the copy button or selecting the text manually.
Paste into your code editor, document, or wherever you need it.
Benefits
Saves time formatting strings for code, especially when converting between naming conventions.
Eliminates typos and inconsistency when changing case manually.
Helps follow coding standards (e.g., camelCase in JavaScript, UPPER_SNAKE_CASE in Python constants).
Works with any length of text—handles long URLs, sentences, or paragraphs in milliseconds.
No installation, account, or download required—works entirely in your browser.
Tips & common mistakes
Common mistakes
Using the wrong case style for your programming language (e.g., snake_case in Python instead of camelCase).
Assuming special characters or numbers will be handled the same way across all styles—some tools ignore them.
Not checking the output for word boundary errors, especially with acronyms like 'NASA' or 'iPhone'.
Forgetting that case conversion doesn't fix spacing or punctuation—clean your input first if needed.
Tips
When converting code variable names, remember the convention: camelCase for JavaScript/Java, snake_case for Python, PascalCase for class names in most languages.
For title case, not every word needs a capital—check your style guide (AP, Chicago, APA) because they differ on prepositions and articles.
Use kebab-case for URLs and HTML class names, snake_case for database column names, and dot.case for configuration keys.
If your input has mixed separators (spaces, hyphens, underscores), try trimming and standardizing it first for cleaner output.
Frequently asked questions
What's the difference between camelCase and PascalCase?
camelCase starts with a lowercase letter (myVariable), while PascalCase starts with uppercase (MyVariable). Both capitalize the first letter of each subsequent word. PascalCase is typically used for class or component names; camelCase for variables and function names.
Can I convert text with numbers or special characters?
Yes. The tool leaves numbers and most special characters unchanged and focuses only on alphabetic characters. For example, 'hello_world_2024' becomes 'HelloWorld2024' in PascalCase.
Is title case the same as sentence case?
No. Title case capitalizes the first letter of every major word (The Quick Brown Fox). Sentence case capitalizes only the first letter of the first word (The quick brown fox). This tool usually offers both.
How does the tool know where words start and end?
It looks for word boundaries: spaces, hyphens, underscores, and shifts from lowercase to uppercase (like in camelCase). This is why 'helloWorld' and 'hello_world' both convert correctly to 'hello-world' in kebab-case.
Can I convert an entire document or just single words?
You can paste an entire paragraph, sentence, or document. The tool applies the case rule to all text, though multi-line output might format differently depending on the style you choose.
Why does my acronym look odd after conversion?
Acronyms like 'NASA' or 'USA' are treated as single words. In camelCase, they become 'nasa'; in title case, 'Nasa'. If you need them uppercase, edit the output or keep them separate from the conversion.