Uppercase Converter
Use this free online tool to instantly convert your text into uppercase. Perfect for headlines, titles, or emphasis.
Example: hello world → HELLO WORLD
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Input: 0 characters · 0 words | Output: 0 characters · 0 words
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💡 Use uppercase for headings or emphasis, avoid long paragraphs.
Case Converters Comparison
| Mode | Example Input | Example Output |
|---|---|---|
| UPPERCASE | hello world | HELLO WORLD |
| lowercase | HELLO WORLD | hello world |
| Title Case | hello world from letter lab | Hello World From Letter Lab |
| Sentence case | hello WORLD. THIS is LETTER lab. | Hello world. This is Letter lab. |
| camelCase | hello world from letter lab | helloWorldFromLetterLab |
| PascalCase | hello world from letter lab | HelloWorldFromLetterLab |
| snake_case | Hello World From Letter Lab | hello_world_from_letter_lab |
| kebab-case | Hello World From Letter Lab | hello-world-from-letter-lab |
| CONSTANT_CASE | Hello World From Letter Lab | HELLO_WORLD_FROM_LETTER_LAB |
| Toggle Case | Hello World! | hELLO wORLD! |
Frequently Asked Questions
What does the Uppercase Converter do?
It converts all your text letters to uppercase.
Can I use it for multiple paragraphs?
Yes, it works for any length of text.
Where is my text saved?
Your text is stored in your browser sessionStorage and cleared when the session ends.
Do I need an account to use this tool?
No, all tools are free to use without signing up.
Can I use this tool on mobile devices?
Yes, the interface is fully responsive and works on all screen sizes.
How do I copy the converted text?
Use the Copy button next to the output box to copy your text to the clipboard.