Free Online Case Converter

Convert text between uppercase, lowercase, title case, camelCase, snake_case, an...

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14 Case Conversions

Type or paste text above to instantly see it converted to all 14 formats. Click any result to copy it.

UPPERCASE
HELLO WORLD
lowercase
hello world
Title Case
Hello World
Sentence case
Hello world. This is text.
camelCase
helloWorld
PascalCase
HelloWorld
snake_case
hello_world
kebab-case
hello-world
CONSTANT_CASE
HELLO_WORLD
dot.case
hello.world
path/case
hello/world
Header-Case
Hello-World
aLtErNaTiNg
hElLo WoRlD
InVeRsE
hELLO wORLD

Quick answer

A case converter changes the capitalization of your text, converting between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and more. YaliKit converts your text into all 14 case styles at once as you type, entirely in your browser so nothing is uploaded, and one click copies any result. For example, hello world becomes HELLO WORLD in uppercase, Hello World in title case, and helloWorld in camelCase.

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256-bit Encryption
Cloud Processing
Mobile Friendly

Converter Features

14 Case Types - Complete coverage of common text and programming case conventions
Instant Conversion - Convert text live as you type, with no processing delay
Text Statistics - Character count, word count, and characters without spaces
One-Click Copy - Copy converted text to clipboard instantly
Reference Table - Built-in reference showing all case types with examples
Privacy First - All processing happens locally in your browser

Why Use Free Online Case Converter?

14 Case Types

Convert between uppercase, lowercase, title case, and programming cases like camelCase, snake_case, and more.

100% Private

All processing happens in your browser. Your text never leaves your device.

Instant Results

Convert text instantly with a single click. No waiting, no processing time.

Works Everywhere

Use on any device, whether desktop, tablet, or mobile. No installation required.

Text Statistics

See character count, word count, and characters without spaces as you type.

One-Click Copy

Copy your converted text to clipboard with a single click for easy pasting.

Common Uses for Case Converter

Programming

Convert variable names between camelCase, snake_case, PascalCase, and other naming conventions.

Writing & Editing

Format headings, titles, and paragraphs with proper title case or sentence case.

SEO & URLs

Convert text to kebab-case for SEO-friendly URLs and slugs.

Database Design

Format column names and table names using snake_case or CONSTANT_CASE conventions.

How It Works

1

Enter Your Text

Type or paste the text you want to convert into the input box. You can enter any amount of text.

2

Choose a Case Type

Click on any case type button to convert your text. The conversion happens instantly and you can try different cases.

3

Copy Your Result

Click the Copy button to copy the converted text to your clipboard. Use it in your documents, code, or anywhere you need.

Tips & Information

Programming Convention

Use camelCase for JavaScript variables, snake_case for Python, PascalCase for classes, and CONSTANT_CASE for constants.

SEO-Friendly URLs

Use kebab-case for URL slugs - it's the most SEO-friendly format and easy to read in browser address bars.

Title Case vs Sentence Case

Title Case capitalizes every word, while Sentence case only capitalizes the first word and words after periods.

Frequently Asked Questions

Type or paste your text into the box, then read the UPPERCASE result. Every letter is capitalized, so hello world becomes HELLO WORLD. Click the UPPERCASE card to copy it to your clipboard. The change happens instantly as you type, with no button to press.
Title case capitalizes the first letter of each main word, the way you would style a heading or a book title. This converter keeps short joining words like and, of, the and to lowercase unless they are the first or last word, so the quick brown fox becomes The Quick Brown Fox.
Enter your text and read the camelCase result. The first word is lowercase and every following word starts with a capital, with no spaces between them, so hello world becomes helloWorld. It also splits existing snake_case or kebab-case input correctly, so my_user_name becomes myUserName.
Title case capitalizes each main word (Hello World), which suits headings and titles. Sentence case capitalizes only the first letter of each sentence and lowercases the rest (Hello world), which suits normal prose. This tool shows both at the same time so you can compare them.
Both join words in lowercase, but snake_case uses underscores (hello_world) and kebab-case uses hyphens (hello-world). snake_case is common in Python and database column names, while kebab-case is common in URLs, CSS class names and HTML attributes.
Yes. All conversion runs locally in your browser with JavaScript, so your text is never uploaded to a server, logged, or stored. You can convert sensitive drafts or long documents safely, and it keeps working even if you go offline.

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