Case Converter
Reformat prose and identifiers in one pass.
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Paste text, choose a writing or programming case, then copy or download the result. Conversions happen in your browser.
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What does a case converter do?
It changes capitalization or reformats words into a consistent programming identifier style.
Shortcut
Choose a style, review the output, then copy or download only after checking names and acronyms.
How to convert text
Text Case and Programming Identifiers
A case converter changes the capitalization or separators in text. Sentence case and title case are intended for readable prose, while uppercase and lowercase apply a consistent capitalization. Identifier formats such as camelCase, PascalCase, snake_case, and kebab-case help developers follow naming conventions in code, URLs, and configuration. Writers, editors, students, and developers can use this converter to reformat a draft or normalize names before reuse. Automatic rules cannot know whether every capitalized word is a brand, acronym, or proper noun, and punctuation can affect how words are split. Treat the converted text as a draft: compare it with the original and restore any special capitalization before publishing or committing it.
Key Features
💡 Pro Tips
- →Use sentence or title case for prose and a language-appropriate identifier format for code.
- →Keep an untouched copy when converting long text, then inspect acronyms and names.
Common Mistakes
Assuming title case knows every proper noun
Automated capitalization follows general word rules and may change brand names, acronyms, or names that have deliberate styling.
Using a prose style for a code identifier
Programming languages and APIs may require a particular case or disallow spaces and punctuation; follow the project's naming convention.
Last updated: 2026-10-27
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Frequently Asked Questions
Does case conversion preserve acronyms?
Title case preserves many existing uppercase words, but automatic conversion cannot infer every proper name. Review the output before publishing.
What is the difference between camelCase and snake_case?
camelCase joins words and capitalizes later words; snake_case joins lowercase words with underscores.
Can I convert a list of identifiers at once?
Yes. Programming formats are applied line by line, so each non-empty line can be converted as a separate name.
Can changing an identifier's case break code?
Yes. Many languages treat differently capitalized names as distinct identifiers. Update references consistently and follow the naming rules of the project.