What This Tool Does

It converts text between different case formats with a single click. Paste your text, click the case type you want, and the text updates immediately. Copy the result and use it wherever you need it.

Case conversion comes up constantly. Writers need title case for headings. Developers need camelCase for variable names and snake_case for file names. Content managers need sentence case for body text. Doing this manually is tedious and error-prone on longer text. One click handles it accurately regardless of length.

How to Use It

• Paste your text into the input box.
• Click the case format button you want: UPPER CASE, lower case, Title Case, Sentence case, aLtErNaTe CaSe, camelCase, snake_case, or kebab-case.
• The text in the box converts instantly.
• Click Copy Text to copy the result to your clipboard.

When to Use Each Case

UPPER CASE is used for acronyms, emphasis, headings in certain design contexts, and all-caps labels in interfaces.

lower case is used for email addresses, URLs, code identifiers, and text that needs to appear without any capitalization.

Title Case capitalizes the first letter of each word and is used for article titles, book titles, headings, and formal document names.

Sentence case capitalizes only the first letter of each sentence, which matches how regular prose is written.

camelCase joins words together with each new word starting with a capital letter and is used widely in programming, particularly in JavaScript.

snake_case uses underscores between words in lowercase and is common in Python variable names, file names, and database column names.

kebab-case uses hyphens instead of underscores and is used in CSS class names and URL slugs.

Common Uses

• Converting all-caps text from older documents to readable sentence case
• Converting article headlines to proper title case
• Converting variable names between camelCase and snake_case when switching between programming languages
• Converting URLs and file names to lowercase kebab-case for web use
• Formatting text copied from sources that used inconsistent capitalization

Limitations to Know

Title Case converts the first letter of every word to uppercase, including short prepositions and articles like 'a', 'the', 'in', and 'of'. Formal style guides like APA and Chicago have rules about which words to capitalize in titles. This tool applies simple first-letter capitalization, so if you need strict style guide compliance, review the output after converting.

camelCase and snake_case conversions remove non-alphanumeric characters and spaces. If your text contains punctuation other than spaces, those characters are stripped in the output. This is correct behavior for code identifiers but something to be aware of when converting general text.

Frequently Asked Questions

What case formats are supported?

UPPER CASE, lower case, Title Case, Sentence case, aLtErNaTe CaSe, camelCase, snake_case, and kebab-case.

Does it work on multiple paragraphs?

Yes. All text in the box is converted at once regardless of length.

Can I convert code variable names?

Yes. camelCase and snake_case work well for variable and function names.

Does it handle accented characters?

Basic Latin characters convert correctly. Results for accented characters and non-Latin scripts may vary.

Is Title Case the same as all major style guides?

No. Style guides like Chicago and APA have specific rules about short words. This tool capitalizes every word's first letter.

Can I undo a conversion?

The text in the box updates in place. If you need the original, paste it again from your source.