🔡
Case Converter Online
Convert text to UPPERCASE, lowercase, Title Case, Sentence case and more with one click. Free, instant, no signup.
✓ Free
✓ Instant
✓ No Signup
Result
Your converted text will appear here...
How to Use the Case Converter
Paste or type your text in the box above, then click the case style you want. The converted text appears instantly in the result box below. You can then copy it with one click.
Case Styles Explained
- UPPERCASE: Every letter is capitalised. Used for headings, acronyms, and emphasis. Example: QUICK TEXT TOOLS
- lowercase: Every letter is made small. Used for email addresses, URLs, usernames and informal writing. Example: quick text tools
- Title Case: The first letter of each major word is capitalised. Used for book titles, article headlines, product names. Example: Quick Text Tools
- Sentence case: Only the first word of each sentence is capitalised. Standard for paragraphs, emails, captions and most modern web content. Example: Quick text tools is a free resource.
- aLtErNaTiNg: Letters alternate between lower and upper case. Used for memes and playful social media content.
- iNVERSE: Uppercase letters become lowercase and vice versa. Useful for quickly fixing text accidentally typed with Caps Lock on.
💡 Style Guide Tip: Modern style guides (Google, Apple, most tech companies) recommend sentence case for UI labels, buttons, and headings. Title Case is traditional in American journalism and publishing.
When to Use Title Case vs Sentence Case
Title Case is standard for: book titles, movie titles, formal publication names, course titles, and US-based media headlines. Sentence case is preferred for: blog post subheadings, app UI, European publications, emails, and modern digital content.
Frequently Asked Questions
Does it preserve punctuation and numbers?
Yes. Only alphabetical letters are affected by case conversion. Numbers, punctuation, spaces and special characters remain exactly as they are.
Is there a text length limit?
No. You can convert any length of text — from a single word to a full document.
Why does Title Case not capitalise every word?
Standard Title Case rules leave short prepositions, conjunctions, and articles in lowercase unless they are the first or last word of the title. Our converter capitalises every word for simplicity, which is the most common practical interpretation.