Case Converter Online
Paste your text, pick a case, and get the converted result instantly — entirely in your browser.
Your text
Never uploaded
Every conversion happens entirely in your browser — your text never touches our servers.
9 case styles
From everyday UPPERCASE and Title Case to programming styles like camelCase and snake_case.
Free, no limit
No account, and no limit on how much text you can convert.
What is a Case Converter?
A case converter changes the capitalization of text without changing the words themselves — turning a sentence into all UPPERCASE for emphasis, cleaning up an accidentally-capitalized paragraph, formatting a heading into Title Case, or converting a phrase into a programming-friendly style like camelCase or snake_case for a variable name.
How to Convert Text Case Online
- Type or paste your text. Start typing directly into the box, or paste text you already have.
- Click a case button. The converted result appears instantly below.
- Copy or download. Use the Copy button to copy the result to your clipboard, or Download to save it as a .txt file.
Case Styles Explained
| Style | Example | Typically used for |
|---|---|---|
| UPPERCASE | HELLO WORLD | Emphasis, headings, acronyms |
| lowercase | hello world | Usernames, emails, cleanup |
| Title Case | Hello World | Headings, titles |
| Sentence case | Hello world | Normal prose |
| aLtErNaTiNg CaSe | hElLo WoRlD | Stylized or meme text |
| InVeRsE CaSe | hELLO wORLD | Flipping existing capitalization |
| camelCase | helloWorld | JavaScript/Java variable names |
| PascalCase | HelloWorld | Class names, components |
| snake_case | hello_world | Python variables, database columns |
Frequently Asked Questions
How do I change text case online?
Paste or type your text, then click any case button — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, aLtErNaTiNg cAsE, or InVeRsE CaSe — and the converted result appears instantly below.
What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every word (common for headings). Sentence case capitalizes only the first letter of each sentence, like normal prose.
What are camelCase, PascalCase, and snake_case used for?
They're programming naming conventions — camelCase and PascalCase are common for variable and class names in JavaScript, Java, and similar languages; snake_case is common in Python and database column names.
What does InVeRsE CaSe do?
It flips the case of every letter that already has one, unlike aLtErNaTiNg CaSe, which applies a fixed up-down pattern regardless of the original casing.
Is my text uploaded anywhere?
No. Every conversion runs entirely in your browser — your text is never sent to CurePDF's servers.
Is the case converter free?
Yes, with no account required and no limit on how much text you can convert.
Does it work on mobile?
Yes, it works the same in a mobile browser as on desktop.
Can I copy or download the converted text?
Yes — use the Copy button to copy the result to your clipboard, or Download to save it as a .txt file.