Case Converter
Paste your text below and click a conversion button to transform the case.
About Case Converter
This free online case converter tool lets you instantly transform text between multiple case formats. All conversions happen locally in your browser — no data is sent to any server. It supports uppercase, lowercase, title case, sentence case, camelCase, and snake_case, making it useful for developers, writers, and anyone who needs to quickly reformat text.
How to Use
- Type or paste your text into the input area above.
- Click one of the conversion buttons: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, or snake_case.
- The converted text will appear in the output area below.
- Click Copy to copy the result to your clipboard.
Frequently Asked Questions
What is Title Case?
Title case capitalizes the first letter of each word in a sentence. For example, “the quick brown fox” becomes “The Quick Brown Fox”. It is commonly used for headings, titles, and proper nouns.
What is camelCase?
camelCase is a naming convention where the first word is lowercase and subsequent words start with a capital letter, with no spaces or separators. For example, “user first name” becomes “userFirstName”. It is widely used in programming for variable and function names.
What is snake_case?
snake_case is a naming convention where words are separated by underscores and all letters are lowercase. For example, “User First Name” becomes “user_first_name”. It is commonly used in Python, database column names, and file naming.
What is Sentence case?
Sentence case capitalizes only the first letter of the first word in each sentence, along with the first word after periods, exclamation marks, and question marks. For example, “HELLO WORLD. HOW ARE YOU?” becomes “Hello world. How are you?”.