🔤 Case Converter

What is a Case Converter?

A case converter is an online text transformation tool that changes the capitalization of letters in your text. It can convert text to uppercase, lowercase, title case, camelCase, snake_case, and many other formats instantly without manual retyping.

Case converters are essential for writers, students, developers, and content creators who need to quickly format text for different purposes. Whether you're fixing accidentally typed text, formatting code variables, or preparing content for social media, a case converter saves time and ensures consistency.

Our advanced case converter offers 13 different case conversion types plus 6 text transformation tools, making it the most comprehensive free case converter available online. All processing happens in your browser, ensuring your text remains private and secure.

How to Use the Case Converter

1. Enter Text: Type or paste your text into the text area
2. Choose Conversion: Click any button to convert your text instantly
3. View Stats: See real-time word count, character count, and line count
4. Copy or Download: Use the action buttons to copy or download your converted text

Case Conversion Examples

Example 1: Programming Case Styles

Original: hello world example

• camelCase: helloWorldExample
• PascalCase: HelloWorldExample
• snake_case: hello_world_example
• kebab-case: hello-world-example
• CONSTANT_CASE: HELLO_WORLD_EXAMPLE

Example 2: Text Formatting

Original: the quick brown fox

• UPPERCASE: THE QUICK BROWN FOX
• lowercase: the quick brown fox
• Title Case: The Quick Brown Fox
• Sentence case: The quick brown fox

Example 3: Fun Transformations

Original: Hello World

• InVeRsE CaSe: hELLO wORLD
• aLtErNaTiNg cAsE: hElLo wOrLd
• Reverse Text: dlroW olleH
• Reverse Words: World Hello

Key Features - 19 Text Transformations

13 Case Conversion Types

• UPPERCASE: Converts all letters to capital letters (HELLO WORLD). Perfect for headlines, emphasis, and acronyms.
• lowercase: Converts all letters to small letters (hello world). Ideal for URLs, email addresses, and casual text.
• Title Case: Capitalizes the first letter of each word (Hello World). Used for article titles, book names, and headings.
• Sentence case: Capitalizes only the first letter of each sentence (Hello world. Another sentence.). Standard for paragraphs and proper grammar.
• Capitalize Each Word: Capitalizes the first letter of every word including small words (The Quick Brown Fox). Similar to title case but more aggressive.
• camelCase: First word lowercase, subsequent words capitalized with no spaces (helloWorldExample). Used in JavaScript, Java, and C# for variable names.
• PascalCase: All words capitalized with no spaces (HelloWorldExample). Used in C#, .NET, and class names in many programming languages.
• snake_case: All lowercase with underscores between words (hello_world_example). Common in Python, Ruby, and database naming.
• kebab-case: All lowercase with hyphens between words (hello-world-example). Used in URLs, CSS classes, and file names.
• CONSTANT_CASE: All uppercase with underscores (HELLO_WORLD_EXAMPLE). Used for constants in programming languages.
• dot.case: All lowercase with dots between words (hello.world.example). Used in package names and namespaces.
• InVeRsE CaSe: Swaps uppercase to lowercase and vice versa (hELLO wORLD). Fun for creative text effects.
• aLtErNaTiNg cAsE: Alternates between lowercase and uppercase letters (hElLo WoRlD). Popular for memes and social media.

6 Text Transformation Tools

• Reverse Text: Reverses the entire text character by character (dlroW olleH). Useful for creating mirror text or puzzles.
• Reverse Words: Reverses the order of words while keeping letters in order (World Hello). Great for word games.
• Remove Spaces: Removes all spaces from text (HelloWorld). Useful for creating hashtags or compact text.
• Remove Line Breaks: Converts multi-line text to single line. Perfect for cleaning up copied text.
• Trim Extra Spaces: Removes extra spaces between words, leaving only single spaces. Cleans up messy formatting.
• Add Line Numbers: Adds sequential numbers to each line (1. First line, 2. Second line). Useful for code snippets and lists.

Additional Features

• Real-Time Statistics: See word count, character count (with and without spaces), and line count as you type.
• Copy to Clipboard: One-click copy function to quickly use your converted text.
• Download as TXT: Save your converted text as a text file for later use.
• Instant Processing: All conversions happen instantly in your browser with no delays.
• 100% Private: Your text never leaves your device - all processing is local.
• No Limits: Convert unlimited text with no character or usage restrictions.
• Mobile Friendly: Works perfectly on smartphones and tablets.

Frequently Asked Questions

What is the difference between title case and sentence case?

Title case capitalizes the first letter of every word (The Quick Brown Fox), while sentence case only capitalizes the first letter of each sentence (The quick brown fox. Another sentence here). Title case is used for headings and titles, while sentence case is used for normal paragraphs.

What is camelCase and when should I use it?

camelCase is a naming convention where the first word is lowercase and subsequent words are capitalized with no spaces (myVariableName). It's commonly used in JavaScript, Java, and C# for variable names, function names, and method names. It's called "camel case" because the capital letters in the middle look like humps on a camel.

What's the difference between camelCase and PascalCase?

camelCase starts with a lowercase letter (myVariable), while PascalCase starts with an uppercase letter (MyVariable). PascalCase is also called UpperCamelCase and is commonly used for class names in programming, while camelCase is used for variable and function names.

When should I use snake_case vs kebab-case?

snake_case (using underscores) is preferred in Python, Ruby, and database naming conventions. kebab-case (using hyphens) is commonly used in URLs, CSS class names, and file names. Both are lowercase with word separators, but the separator character differs based on the context and programming language conventions.

What is CONSTANT_CASE used for?

CONSTANT_CASE (all uppercase with underscores) is used for defining constants in programming. Constants are values that don't change during program execution, like MAX_SIZE, API_KEY, or DEFAULT_TIMEOUT. This naming convention makes constants easily identifiable in code.

Can I convert multiple paragraphs at once?

Yes! Paste any amount of text and the converter will process all of it instantly, maintaining paragraph breaks and formatting. There's no limit on the amount of text you can convert.

How do I copy the converted text?

After converting your text, click the "Copy" button below the text area. This will copy the entire converted text to your clipboard, ready to paste anywhere. You can also manually select the text and use Ctrl+C (Windows) or Cmd+C (Mac).

Can I download the converted text as a file?

Yes! Click the "Download" button to save your converted text as a .txt file. This is useful if you want to keep a copy of the converted text or use it in other applications.

What does the "Reverse Text" feature do?

Reverse Text flips your entire text character by character. For example, "Hello World" becomes "dlroW olleH". This is useful for creating mirror text, puzzles, or special effects. It's different from "Reverse Words" which only reverses the word order.

How does "Remove Extra Spaces" work?

The "Trim Spaces" feature removes all extra spaces from your text, leaving only single spaces between words. It also removes leading and trailing spaces. This is useful for cleaning up text copied from PDFs or websites that may have irregular spacing.

Is my text stored or saved anywhere?

No. All text processing happens entirely in your browser using JavaScript. Your text never leaves your device and is not sent to any server. We don't store, save, track, or transmit your text anywhere. Your privacy is completely protected.

Does the tool work offline?

Yes! After the page loads initially, all conversions work offline. The tool uses client-side JavaScript, so you don't need an internet connection to convert text once the page is loaded.

Can I use this tool for coding?

Absolutely! The tool is perfect for developers who need to convert variable names, function names, or class names between different naming conventions. Use camelCase for JavaScript, snake_case for Python, PascalCase for C# classes, or CONSTANT_CASE for constants.

What's the difference between "Capitalize" and "Title Case"?

Both capitalize the first letter of each word, but Title Case follows proper title capitalization rules (may keep small words like "a", "the", "of" lowercase in some implementations), while our "Capitalize" button capitalizes every single word including small words.

How do I use the InVeRsE CaSe feature?

InVeRsE CaSe swaps the case of every letter - uppercase becomes lowercase and lowercase becomes uppercase. For example, "Hello World" becomes "hELLO wORLD". This creates a fun, eye-catching effect popular in memes and creative text.

Is there a character limit?

No! You can convert unlimited amounts of text. However, extremely large texts (millions of characters) may take a moment to process depending on your device's performance.

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