Case Converter
Convert text between uppercase, lowercase, title case, and more
About Case Converter
Instantly convert text between UPPERCASE, lowercase, Title Case, Sentence case, and camelCase. All processing happens in your browser — no data is ever sent to a server.
How to Use This Tool
- Paste or type your text into the input textarea.
- Click one of the case buttons: UPPER CASE, lower case, Title Case, Sentence case, or camelCase.
- The converted text appears in the output box instantly.
- Click "Copy" to copy the result to your clipboard.
Common Use Cases
- Converting a block of text accidentally typed in all caps — a common mistake when CAPS LOCK is on.
- Transforming article titles into proper Title Case for blog posts, headlines, or presentations.
- Generating camelCase or snake_case variable names from plain English descriptions during coding.
- Quickly normalising user-submitted data (e.g. names entered in all caps) before storing it in a database.
- Preparing text for headings, subheadings, buttons, or navigation labels in a design mockup.
Frequently Asked Questions
What is title case?
Title case capitalises the first letter of each major word. Articles (a, an, the), conjunctions (and, but, or), and short prepositions are typically kept lowercase unless they appear at the start of the title.
What is sentence case?
Sentence case capitalises only the first letter of the first word and proper nouns, matching the capitalisation style used in normal prose — ideal for body text and descriptive labels.
Does the converter support unicode and special characters?
Yes. The converter uses JavaScript's built-in toUpperCase() and toLowerCase() methods, which are fully Unicode-aware and handle accented characters (é, ü, ñ) and other scripts correctly.
Can I convert code identifiers to different cases?
Yes. The camelCase option is especially useful for developers who need to convert plain English phrases into valid JavaScript, TypeScript, or Java variable names without spaces.