Text tool
Change the case of anything.
Ten conversions including the programming cases, with proper title-case rules that leave the small words alone.
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Case converter
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How to get this right.
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01
Title case has rules, and most converters ignore them
Proper title case capitalises the first and last word and everything in between except articles, short conjunctions and short prepositions — a, an, the, and, but, or, for, at, by, in, of, on, to. "The Quick Brown Fox Jumps over the Lazy Dog" is correct; capitalising "over" and "the" is not. This tool follows that rule.
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02
Which programming case goes where
camelCase for JavaScript variables and functions. PascalCase for classes and React components. snake_case for Python and most SQL. kebab-case for CSS classes, HTML attributes and URLs. CONSTANT_CASE for environment variables and true constants. Following the convention of the language you are in matters far more than which one you prefer.
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03
Converting is not the same as writing
Converting a sentence to uppercase gives you shouting; writing a headline in sentence case gives you something people read. Case conversion is a mechanical step — the decision about what tone you want is a separate one.
Questions
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These are the small pieces. We build the systems they belong to.