Free Case Converter — Change Text to UPPER, lower, Title & More

What Is a Case Converter?

A case converter is a text transformation tool that changes the capitalization of your text instantly. Whether you need to convert text to UPPERCASE, lowercase, Title Case, Sentence case, or other formats — this tool handles it in one click without manual retyping.

It's one of the most commonly needed text tools for writers, developers, marketers, and anyone who works with text regularly.

Why Text Case Conversion Matters

• Fix accidental caps lock — Quickly convert text typed with Caps Lock on without retyping
• Consistent formatting — Ensure headings, titles, and labels follow the same capitalization rules
• Professional content — Properly cased text looks polished and credible
• Programming conventions — Convert between camelCase, snake_case, and other naming formats
• Data cleaning — Normalize capitalization in spreadsheets and databases

Available Case Conversions

UPPERCASE

Converts all characters to capital letters. Useful for headings, acronyms, and emphasis. Example: hello world → HELLO WORLD

lowercase

Converts all characters to small letters. Common for email addresses, URLs, and code. Example: HELLO WORLD → hello world

Title Case

Capitalizes the first letter of each word. Standard for headlines, book titles, and headings. Example: the quick brown fox → The Quick Brown Fox

Sentence case

Capitalizes only the first letter of the first word in each sentence. Natural for paragraphs and body text. Example: hello world. how are you? → Hello world. How are you?

aLtErNaTiNg CaSe

Alternates between uppercase and lowercase for each character. Often used for memes and social media humor.

How to Use Our Free Case Converter

1. Paste or type your text into the input field
2. Select the desired case conversion (uppercase, lowercase, title, sentence, etc.)
3. The converted text appears instantly
4. Copy the result with one click

Common Use Cases

• Blog and article formatting — Convert headings to title case for consistent SEO formatting
• Email cleanup — Fix all-caps text from forms or old databases
• Social media content — Format captions and hashtags consistently
• CSV and spreadsheet data — Normalize name and address capitalization
• Code variable naming — Convert between camelCase, PascalCase, and snake_case

Best Practices

• Use Title Case for headings — It's the standard for H1 and H2 tags in SEO content
• Use Sentence case for body text — It reads naturally and is easier to scan
• Avoid ALL CAPS for long text — It reads as shouting and reduces readability
• Be consistent — Pick one capitalization style per content type and stick with it

Related Tools

• Character Counter — Count characters, words, and sentences in your text
• Text Separator — Split and format text with custom delimiters
• Reverse Words — Reverse the order of words in your text
• Duplicate Lines Remover — Remove duplicate lines from your text
• Slug Generator — Convert text to URL-friendly slugs

Frequently Asked Questions

What is Title Case vs. Sentence Case?

Title Case capitalizes the first letter of every major word ("The Quick Brown Fox"). Sentence case only capitalizes the first word and proper nouns ("The quick brown fox"). Title case is used for headings; sentence case for regular text.

Does the case converter work with non-English characters?

Yes — our tool fully supports Unicode characters including accented letters (é, ñ, ü), Cyrillic, Greek, and other scripts that have uppercase/lowercase variants.

Can I convert text case in bulk?

Absolutely. Paste as much text as you need — there's no character limit. The conversion happens instantly regardless of text length.

What is camelCase used for?

camelCase capitalizes the first letter of each word except the first (e.g., myVariableName). It's the standard naming convention in JavaScript, Java, and many programming languages for variable and function names.