All Case Converters

Every case converter on FreeTextTools.org — from everyday writing tools like uppercase and title case, to developer formats like camelCase, snake_case, and kebab-case. All free, all instant, no signup required.

Writing & Everyday Use

Common case conversions for writing, editing, and formatting text.

Developer & Naming Conventions

Programming-specific case formats for variables, functions, file names, and identifiers.

Browse Tools By Category

Fun & Stylistic

Creative and social media case styles for memes, emphasis, and hashtags.

What Is Text Case Conversion?

Text case conversion is the process of transforming text from one letter-casing style to another. Different contexts call for different conventions — a Python developer needs snake_case, a JavaScript developer may prefer camelCase, and a copywriter needs proper Title Case. Our tools handle all of these instantly, with no installation required.

Choosing the Right Case Converter

For everyday writing

Use Uppercase or Lowercase for bulk text normalization. Sentence Case is ideal for fixing copied text that arrives in all-caps or all-lowercase. Title Case follows headline capitalization rules, making it perfect for blog titles, headings, and article names.

For developers

camelCase is standard for JavaScript variables and JSON keys. snake_case is the convention in Python and Ruby. kebab-case is widely used in CSS class names and URL slugs. PascalCase is the standard for class names across most languages. CONSTANT_CASE is used for environment variables and constants.

For social media and fun

The Alternating Case and Random Case converters produce the "mocking SpongeBob" style popular in memes. The Hashtag Case Generator turns any phrase into properly formatted hashtags for Instagram, Twitter, and LinkedIn.

All 20 Case Formats Explained

Here is a quick reference for every case style available on this site, using the example phrase "hello world example":

Case Style Output
Uppercase HELLO WORLD EXAMPLE
Lowercase hello world example
Title Case Hello World Example
Sentence case Hello world example
Proper Case Hello World Example
camelCase helloWorldExample
PascalCase HelloWorldExample
snake_case hello_world_example
kebab-case hello-world-example
CONSTANT_CASE HELLO_WORLD_EXAMPLE
COBOL-CASE HELLO-WORLD-EXAMPLE
dot.case hello.world.example
UPPER.DOT.CASE HELLO.WORLD.EXAMPLE
path/case hello/world/example
Train-Case Hello-World-Example
Alternating Case hElLo wOrLd eXaMpLe
Inverse Case HELLO WORLD EXAMPLE → hello world example
Toggle Case hELLO wORLD eXAMPLE
Random Case HeLlO WoRlD eXaMpLe
Hashtag Case #hello #world #example