Free Online Case Converter
Convert text to uppercase, lowercase, sentence case, title case, and more instantly. Paste, type, or upload your text and transform it in one click.
How to Use Case Converter
Fix text typed in the wrong case, or format titles and headings in one click — no retyping.
Paste or Upload
Paste text, type it, or upload a .txt, .md or .csv file.
Pick a Case
Click Sentence, lower, UPPER, Capitalized, Title, aLtErNaTiNg or InVeRsE case.
Copy or Download
Copy the result or download it as a text file.
Cases
7 styles
Languages
Accents & all scripts
Files
.txt .md .csv
Works on
Phone & computer
Privacy
Runs in your browser
Price
100% free
Case Converter: Quick Reference
The key numbers and facts in one place.
| Sentence case | The quick brown fox. It runs. |
|---|---|
| lower case | the quick brown fox |
| UPPER CASE | THE QUICK BROWN FOX |
| Capitalized Case | The Quick Brown Fox Of The Forest |
| Title Case | The Quick Brown Fox of the Forest |
| aLtErNaTiNg cAsE | tHe qUiCk bRoWn fOx |
| InVeRsE CaSe | hELLO wORLD (from Hello World) |
What Can You Use It For?
Popular ways people use Case Converter.
Titles & Headings
Format blog titles and headings.
Caps Lock Mistakes
Fix text typed with Caps Lock on.
Essays
Clean up copied quotes and notes.
Social Posts
Fun alternating text for memes.
Tips for the Best Result
- Title Case keeps small words like "of" and "the" in lower case.
- Sentence case starts a capital after . ! and ?
- Names may need a quick check after lower case.
Frequently Asked Questions
Quick answers about Case Converter.
Capitalized Case makes every word start with a capital. Title Case keeps small words like "and", "of", "the" lower case.
Yes. Words like über and ñandú become Über and Ñandú correctly.
No. Apostrophes are handled, so you get Don't.
Yes. Upload a .txt, .md or .csv file, convert it and download the result.
Yes. Nothing is uploaded.
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