Writing Tools

Case Converter

Convert text between UPPERCASE, lowercase, Title Case, and more formats.

How to use the Case Converter

Enter your text

Type or paste the text you want to convert into the input area.

Choose a case style

Click any of the case buttons like UPPERCASE, Title Case, camelCase, or others.

Copy the result

Click the Copy button on the result box to copy your converted text to the clipboard.

What is a Case Converter?

A case converter changes the capitalization of your text without retyping it. Paste any text and switch it between UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case, and more in a single click.

It saves real time whenever text arrives in the wrong case: a heading typed with caps lock on, a list of names in all caps from a spreadsheet, or code identifiers that need a different naming style. The conversion happens instantly in your browser and the result is ready to copy.

UPPERCASE, lowercase, Title Case, and Sentence case
Developer cases: camelCase, PascalCase, snake_case, kebab-case
aLtErNaTiNg and InVeRsE case for stylized text
Converts any length of text instantly
One click copy of the converted result
Runs fully in your browser with nothing uploaded

When each case is used

Uppercase is used for emphasis, acronyms, and legal headings. Lowercase fixes text typed with caps lock on. Title case capitalizes the main words of headlines and book titles. Sentence case capitalizes only the first word and proper nouns, which is the standard for body text and most modern headline styles.

Developer naming conventions

camelCase starts lowercase and capitalizes each following word, common in JavaScript variables. PascalCase capitalizes every word, used for class names. snake_case joins words with underscores, standard in Python. kebab-case joins words with hyphens, used in URLs and CSS classes. The converter switches between all of them so you can rename identifiers without manual editing.

Fixing caps lock mistakes

Text typed with caps lock on does not need to be retyped. Paste it, choose sentence case, and the tool lowercases everything then recapitalizes sentence starts. Title case and lowercase options handle headings and lists the same way, in one click.

Frequently Asked Questions

What is the difference between title case and sentence case?

Title case capitalizes the first letter of every major word, like a book title. Sentence case only capitalizes the first word and proper nouns, like a normal sentence.

Can it convert to camelCase and snake_case?

Yes. Developer cases including camelCase, PascalCase, snake_case, and kebab-case are supported alongside the standard text cases.

Does the converter change anything besides capitalization?

Standard cases only change letter casing. Developer cases also adjust separators, for example replacing spaces with underscores for snake_case.

Is there a limit on text length?

No practical limit. You can convert a single heading or an entire document at once.

Is my text uploaded anywhere?

No. Conversion happens entirely in your browser, so your text stays on your device.

How do I fix text typed with caps lock on?

Paste the text and click Sentence case. Everything is lowercased and sentence starts are recapitalized automatically.

Related Tools

Text to Title Case

Convert text to title case with smart capitalization rules.

HTML to Markdown

Convert HTML to clean Markdown. Supports headings, links, images, lists, tables, and code blocks.

Image to Base64

Convert any image to a Base64 data URL instantly in your browser. No upload, fully private.

Markdown to HTML

Convert Markdown text to HTML with live preview side by side.

Morse Code Converter

Convert text to Morse code and Morse code back to text instantly.

Number to Words

Convert any number into its written English word form.

Loading pageLoading content.

What is a Case Converter?

UPPERCASE, lowercase, Title Case, and Sentence case

Developer cases: camelCase, PascalCase, snake_case, kebab-case

aLtErNaTiNg and InVeRsE case for stylized text

Converts any length of text instantly

One click copy of the converted result

Runs fully in your browser with nothing uploaded