Text Case Converter
Instantly convert text to any case — UPPERCASE, lowercase, Title Case, Sentence case, and more. Undo any transformation. 100% private — nothing leaves your browser.
🔒 100% Private — Runs in your browserChoose a transformation
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How to Use This Text Case Converter
Paste your text into the editor, then click any transformation button. The text is converted instantly and a Before/After comparison appears below so you can see exactly what changed. Use the Undo button to revert any transformation — the tool keeps a history of up to 10 steps.
When to Use Each Case
- UPPERCASE: Headlines for maximum impact, legal text, warning labels, acronyms, and emphasis. Avoid using all caps for long passages — it reduces readability significantly.
- lowercase: Brand names that stylistically use all lowercase (like instagram, adidas), code variable names, or informal digital communication.
- Title Case: Blog post titles, book titles, movie names, product names, and page headings. Adds formality and improves visual scannability.
- Sentence case: Body text, email subject lines, social media posts, and everyday writing. Most natural and easiest to read.
- Remove Extra Spaces: Useful for cleaning up text copied from PDFs, Word documents, or web pages that contain extra whitespace artifacts.
- Reverse Word Order: A quick tool for rearranging word sequences, useful in word games or creative writing exercises.
Frequently Asked Questions
What is Title Case and when should I use it?
Title Case capitalises the first letter of every word: "The Quick Brown Fox". Use it for article headings, book titles, product names, and page titles. It gives text a formal, published appearance.
What is Sentence case?
Sentence case capitalises only the first letter of each sentence and leaves everything else lowercase: "The quick brown fox jumps over the lazy dog. It is a pangram." This is the standard case for body text, blog posts, and everyday writing.
How do I convert text from UPPERCASE to lowercase online?
Paste your text into this tool and click the "lowercase" button. Your entire text is converted to lowercase instantly. You can then copy it or download it. No signup required.
What does alternating case mean?
Alternating case alternates between uppercase and lowercase for each character: "tHe QuIcK bRoWn FoX". It is mostly used for humorous or mocking effect in informal communication. This tool applies it with even characters in lowercase and odd in uppercase.
Can I undo a text transformation?
Yes. This tool keeps a history of up to 10 transformations. Click the Undo button to revert to the previous state. You can undo multiple steps all the way back to your original text.