Case Converter

LOCAL · Browser-Only

Convert text between uppercase, lowercase, title case, and more

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What is Case Converter?

Free online case converter to convert text between multiple case formats instantly: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and more.

Change uppercase to lowercase, capitalize each word, or convert a heading to title case in one click. Developers can reformat variable names between camelCase and snake_case, while writers can fix capitalization across a paragraph or convert all caps text back to sentence case. Paste your text and click any format button to transform it immediately. Everything runs in your browser, so your text never leaves your device. No signup required.

How to Use Case Converter

1Type or paste your text into the input area
2Click any of the case format buttons (UPPER, lower, Title, camelCase, etc.)
3See the converted text appear instantly in the output area
4Copy the result and use it wherever you need

Frequently Asked Questions

What case formats are supported?

This tool supports UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and dot.case. These cover the most common formats used in programming, writing, and content creation.

What is camelCase and when should I use it?

camelCase is a naming convention where the first word is lowercase and each subsequent word starts with a capital letter (e.g., myVariableName). It is the standard convention for variable and function names in JavaScript, Java, and many other programming languages.

What is the difference between Title Case and Sentence case?

Title Case capitalizes the first letter of every word (e.g., 'The Quick Brown Fox'). Sentence case only capitalizes the first letter of the first word and proper nouns (e.g., 'The quick brown fox'). Title Case is used for headings, while Sentence case is used for regular text.

How do I convert all-caps text back to normal?

Paste the all-caps text and click 'lowercase' to make everything lowercase, or click 'Sentence case' to capitalize only the first letter of each sentence. Sentence case is usually the right choice for restoring readable paragraphs.

Can I convert between camelCase and snake_case for code?

Yes. Paste a variable name and click snake_case, camelCase, PascalCase, kebab-case, or CONSTANT_CASE to reformat it. The converter splits on existing word boundaries, so myVariableName and my_variable_name convert cleanly in either direction.

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Keep reading: HTML Cheat Sheet and hash algorithms reference. Doing this in code instead? See the text processing endpoints.