What text case formats are supported?

Our Case Converter supports 13 formats: Sentence case, lowercase, UPPERCASE, Title Case, Capitalized Case, alternating case, Inverse case, camelCase, PascalCase, snake_case, kebab-case (URL slug), CONSTANT_CASE, and dot.case.

What is the difference between Title Case and Capitalized Case?

Capitalized Case capitalizes the first letter of EVERY word. Title Case follows grammatical style guidelines (such as Chicago and AP styles) by keeping minor articles, prepositions, and conjunctions (like "a", "an", "the", "in", "and", "of") in lowercase unless they start a sentence.

How does the extra space remover work?

The cleanup tool collapses multiple consecutive spaces or tabs into a single space, removes accidental trailing whitespace, and strips blank empty lines.

Is my text sent to a server?

No. All case conversions and formatting happen locally in your web browser. Your text remains 100% private and confidential.

100% Free Online Text Formatter

Free Online Case Converter

Transform text casing in 1 click. Switch effortlessly between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and kebab-case with built-in space cleaners.

0 Words • 0 Characters

Standard Writing Cases

Developer & URL Formats

Formatting & Spacing Cleaners

Word Counter

Style Reference

Letter Casing Styles Explained

When to use each case convention across professional writing, journalism, and programming.

Title Case

Headings & Titles

The Quick Brown Fox Jumps over the Lazy Dog

Standard for book titles, blog headlines, and article names. Capitalizes major words while keeping conjunctions and prepositions lowercase.

Sentence case

Standard Prose

The quick brown fox jumps over the lazy dog.

Capitalizes only the very first letter of each sentence and proper nouns. Ideal for standard paragraphs, essays, and modern UI text.

camelCase

JS & TypeScript

theQuickBrownFoxJumpsOverTheLazyDog

Starts with a lowercase word and capitalizes subsequent joined words. Universal standard for JavaScript variables, methods, and JSON keys.

snake_case

Python & SQL

the_quick_brown_fox_jumps_over_the_lazy_dog

Replaces all spaces with underscores in lowercase. Standard naming standard in Python, Ruby, and database column definitions.

kebab-case (slug)

URLs & CSS

the-quick-brown-fox-jumps-over-the-lazy-dog

Replaces spaces with hyphens in lowercase. Crucial for SEO-friendly URL slugs, CSS class names, and package repositories.

CONSTANT_CASE

Constants & .env

THE_QUICK_BROWN_FOX_JUMPS_OVER_THE_LAZY_DOG

Uppercase letters joined by underscores. Standard for global variables, immutable constants, and environment variables (.env).

Frequently Asked Questions

Case Converter FAQs

How does Title Case decide which words to capitalize?

Our Title Case tool applies standard AP & Chicago style rules. It automatically capitalizes all major words (nouns, pronouns, verbs, adjectives, adverbs) and leaves minor words (a, an, the, in, on, of, for, to, at, by, with, and, but, or) in lowercase unless they appear at the very start of the sentence.

Can I convert accidental all-caps text back to sentence case?

Yes! If you left Caps Lock on and typed in all-caps, simply paste your text here and click Sentence case. It will capitalize only the start of each sentence and make the rest lowercase.

Is there a word or character limit on this tool?

No. There are no character or word limits. You can convert entire book chapters, essays, codebases, or blog posts in a fraction of a millisecond.

How do I convert text into an SEO-friendly URL slug?

Paste your blog post or page title, then click kebab-case (slug). It will strip special characters, make all characters lowercase, and join the words cleanly with hyphens ready for your URL structure.

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