Quick answer
Paste your text, click the case you want — Sentence case, lower case, UPPER CASE, Title Case and more — then copy or download the result.
- Cases:
- 10 styles incl. camelCase, snake_case
- Copy:
- One click
- Download:
- .txt file
- Privacy:
- Runs in your browser
- Price:
- Free, unlimited
- Sign-up:
- Not required
Retyping a paragraph because Caps Lock was on is nobody’s idea of fun. Our case converter changes the capitalisation of any text instantly — from everyday sentence case to developer formats such as camelCase and kebab-case.
How to use Case Converter – step by step
- 1 Paste your textType or paste into the box.
- 2 Pick a caseClick any button. You can try several — each one transforms the current text.
- 3 Copy or downloadUse Copy result or save it as a .txt file.
Why use our Case Converter?
Smart Title Case
Keeps short words like “and”, “of” and “the” lowercase inside titles.
Developer formats
camelCase, snake_case and kebab-case for variables, file names and URLs.
Unicode friendly
Handles accented letters and many non-English alphabets.
Private
Your text never leaves your device.
What each case looks like
| Case | Example |
|---|---|
| Sentence case | The quick brown fox jumps. |
| lower case | the quick brown fox jumps. |
| UPPER CASE | THE QUICK BROWN FOX JUMPS. |
| Title Case | The Quick Brown Fox Jumps |
| camelCase | theQuickBrownFoxJumps |
| snake_case | the_quick_brown_fox_jumps |
| kebab-case | the-quick-brown-fox-jumps |
Frequently asked questions
How do I change text from uppercase to lowercase?
Paste the text and click “lower case”. To capitalise only the first letter of each sentence, click “Sentence case”.
What is Title Case?
Title Case capitalises the main words of a headline, while small words like “and”, “of” and “the” stay lowercase unless they come first.
Can I convert to camelCase or snake_case?
Yes. These are useful for code, variable names and file names.
Is there a text length limit?
No practical limit — long documents convert instantly in your browser.
Last updated November 2026 · Written and tested by the SmallEasyTools team.