Text Case Converter

Change capitalization without retyping using MiniWebtool’s Text Case Converter. Paste text, compare supported styles such as sentence case, uppercase, or camelCase, then copy the version suited to your document or code.

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Help me understand MiniWebtool's Text Case Converter: https://miniwebtool.com/lowercase-uppercase-letters/. What can I use it for, what inputs or settings do I need, and how do I use it and understand the output? Walk me through one simple example. Use this page as your source and answer in English.

Free to useNo sign-up requiredInstant Results

Text Case ConverterTry it now — free ▼

Type one line, then see it as UPPERCASE, lowercase, Title Case and Sentence case

Type or paste text, pick one of 12 case styles and click Convert Text: the result is copy-ready and every style is previewed side by side.

Install miniwebtool Chrome Extension to convert the case of selected text via the right-click menu anytime.

Quick Examples:

Enter Your Text

Characters: 0

No Spaces: 0

Words: 0

Select Conversion Type

Aa→AA UPPERCASE

Aa→aa lowercase

Aa→Aa Bb Title Case

Aa→Aa. Bb. Sentence case

Aa→aA aLtErNaTiNg CaSe

Aa→aA iNVERSE cASE

Aa→aaBb camelCase

Aa→AaBb PascalCase

Aa→aa_bb snake_case

Aa→aa-bb kebab-case

Aa→AA_BB CONSTANT_CASE

Aa→aa.bb dot.case

Embed Text Case Converter Widget

About Text Case Converter

Welcome to our Text Case Converter, a powerful online tool that transforms your text into any case format you need. Whether you're converting text to UPPERCASE, lowercase, Title Case, or programming-specific formats like camelCase and snake_case, this tool makes it instant and effortless. With 12 different case conversion options and real-time statistics, it's the most comprehensive text case changer available.

At a Glance

Text Case Converter changes the capitalization of pasted text into styles such as UPPERCASE, lowercase, Title Case, sentence case, camelCase and snake_case. It previews every style so you can copy the one you want.

Text Case Converter: features at a glance
Feature	What you get	Good for
Standard cases	UPPERCASE, lowercase, Title Case and Sentence case, for example HELLO WORLD and Hello world.	Fixing headlines, names and paragraphs typed in the wrong case
Playful cases	aLtErNaTiNg CaSe and iNVERSE cASE, which flips the case of every letter.	Memes and stylistic text effects
Programming cases	camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE and dot.case.	Variable names, class names, CSS classes and URL slugs
Preview all	A preview grid shows your text in every case at once so you can compare before choosing.	Picking a style without converting repeatedly
Live statistics	Shows character and word counts as you type.	Keeping text within a length limit
Copy button	Copies the converted text to the clipboard in one click.	Pasting the result into a document or code editor

Available Case Conversions

Text Case Converter: Available Case Conversions
Case Type	Example Output	Common Use
UPPERCASE	HELLO WORLD	Headlines, emphasis, acronyms
lowercase	hello world	URLs, email addresses, standardization
Title Case	Hello World	Book titles, headlines, names
Sentence case	Hello world. New sentence.	Regular text, paragraphs
aLtErNaTiNg CaSe	hElLo WoRlD	Memes, sarcastic text
iNVERSE cASE	hELLO wORLD	Stylistic effects
camelCase	helloWorld	JavaScript, Java variables
PascalCase	HelloWorld	Class names, C# conventions
snake_case	hello_world	Python, Ruby, databases
kebab-case	hello-world	URLs, CSS classes
CONSTANT_CASE	HELLO_WORLD	Constants in programming
dot.case	hello.world	Package names, configs

How to Use This Tool

Enter your text: Type or paste your text into the input area. You can use the example buttons for quick testing.
Choose a conversion type: Click on one of the 12 case conversion buttons to select your desired format.
Convert: Click the "Convert Text" button to transform your text.
Copy the result: Click "Copy to Clipboard" to copy your converted text instantly.
Compare options: View all conversion options in the preview grid to compare different formats.

Programming Case Conventions

camelCase

Used in JavaScript, Java, and TypeScript for variable names and function names. The first word is lowercase, subsequent words are capitalized with no spaces.

PascalCase

Common in C#, Java class names, and React components. Every word starts with a capital letter with no separators between words.

snake_case

The standard in Python, Ruby, and database column names. Words are separated by underscores and all lowercase.

kebab-case

Perfect for URLs, CSS class names, and HTML attributes. Words are separated by hyphens and all lowercase.

Features

12 Case Formats: The most comprehensive text case converter with support for all popular case styles
Real-time Statistics: See character count, word count, and more as you type
Instant Preview: Compare all conversion options side-by-side before choosing
One-click Copy: Easily copy your converted text to clipboard
No Limits: Convert text of any length for free
Privacy First: All processing happens in your browser - your text is never stored

Frequently Asked Questions

How do I convert text to uppercase?

To convert text to uppercase, simply paste your text in the input field and click the "UPPERCASE" button. All letters will be converted to capital letters instantly. For example, "hello world" becomes "HELLO WORLD".

What is the difference between Title Case and Sentence Case?

Title Case capitalizes the first letter of every word (e.g., "The Quick Brown Fox"), while Sentence Case only capitalizes the first letter of each sentence (e.g., "The quick brown fox. Jumps over."). Title Case is commonly used for headlines and titles, while Sentence Case is used for regular text.

What is camelCase and when should I use it?

camelCase is a naming convention where the first word is lowercase and subsequent words start with capital letters, with no spaces (e.g., "myVariableName"). It's commonly used in JavaScript, Java, and other programming languages for variable and function names.

What is snake_case used for?

snake_case uses underscores to separate words, with all letters lowercase (e.g., "my_variable_name"). It's commonly used in Python, Ruby, and database column names. The uppercase version (CONSTANT_CASE or SCREAMING_SNAKE_CASE) is used for constants.

What is kebab-case and where is it used?

kebab-case uses hyphens to separate words, with all letters lowercase (e.g., "my-url-slug"). It's commonly used in URLs, CSS class names, and file names because hyphens are URL-safe and readable.

Reference this content, page, or tool as:

"Text Case Converter" at https://MiniWebtool.com/lowercase-uppercase-letters/ from MiniWebtool, https://MiniWebtool.com/

by miniwebtool team. Updated: Jan 29, 2026

Developer API available: Run this tool from your app, automation, or agent with one JSON HTTP request. View API docs

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