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Free Online Text Case Converter

Instantly transform text between UPPERCASE, lowercase, camelCase, snake_case, PascalCase, and more. Secure, fast, and entirely client-side.

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Input Text
0 characters0 words0 lines
UPPERCASE
lowercase
Title Case
Sentence case
camelCase
PascalCase
snake_case
CONSTANT_CASE
kebab-case
dot.case
Alternating/StuDly cAsE
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Understanding Text Cases

Different contexts require different text capitalization styles. Writers use standard natural language cases like Sentence case and Title Case to improve readability, while developers rely on specific naming conventions to ensure variables, files, and functions are formatted correctly across different systems.

Programming Naming Conventions

camelCase

First word lowercase, subsequent words capitalized. No spaces.

myVariableName

Common in: JavaScript, Java

snake_case

All words lowercase, separated by underscores.

my_variable_name

Common in: Python, Ruby, SQL

kebab-case

All words lowercase, separated by hyphens.

my-variable-name

Common in: URLs, CSS, HTML

Natural Language Cases

  • Sentence case: The standard format for prose. Only the first letter of the sentence and proper nouns are capitalized.
  • Title Case: The standard format for titles and headings. The first letter of every major word is capitalized.
  • UPPERCASE: All letters are capitalized. Often used for emphasis or acronyms.
  • lowercase: All letters are in lowercase. Used informally or in specific stylistic contexts.
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Frequently Asked Questions

What is a case converter?

A case converter is a simple tool that allows you to change the capitalization or formatting of your text. It instantly transforms text into various programming and natural language formats without manual editing.

What is camelCase?

camelCase is a naming convention where the first letter of each word is capitalized except for the first word, and spaces are removed. For example: 'helloWorldTest'. It is widely used in programming languages like JavaScript and Java.

How does the word tokenizer work?

Our robust word tokenizer automatically detects word boundaries in your text by splitting on spaces, hyphens, underscores, dots, and even transitions between lowercase and uppercase letters (like in camelCase). This allows seamless conversion between any programmer cases.

Is this tool secure?

Yes, absolutely. All case conversion happens entirely within your web browser using JavaScript. No text is ever uploaded to or stored on our servers, ensuring complete privacy.

What is snake_case and kebab-case?

snake_case separates words with underscores (e.g., 'hello_world') and is commonly used in Python and databases. kebab-case separates words with hyphens (e.g., 'hello-world') and is often used in URLs and CSS class names.