KKoumen Tools PRO

Fix the capitalisation.

Headlines, variable names, slugs — paste once, click a style, copy the result.

7 words · 43 characters

Seven text cases, and when each one is correct

Case conversion looks like a formatting convenience until you are naming variables or fixing a headline. The rules for title case in particular are not "capitalise every word", and getting them wrong is visible to anyone who edits for a living.

  1. Paste or type your text. Conversion applies instantly to the whole text. Nothing leaves the browser.
  2. Pick the case you need. Each button applies one transformation. The result replaces the input so you can copy it directly or chain another transformation on top.
  3. Check title case specifically. This one follows the editorial convention: capitalise the first and last word and all significant words, but leave articles, short prepositions and conjunctions lowercase unless they start or end the title. "The Old Man and the Sea", not "The Old Man And The Sea".
  4. Copy the result. One button, and the text is on your clipboard ready to paste into the destination.

When this comes up

Questions

Which words stay lowercase in title case?

Articles (a, an, the), coordinating conjunctions (and, but, or, for, nor, so, yet) and prepositions of four letters or fewer (at, by, for, in, of, on, to, up, with is usually capitalised). The first and last word of the title are always capitalised regardless of what they are.

What is the difference between camelCase and PascalCase?

camelCase starts lowercase and capitalises each subsequent word: firstName. PascalCase capitalises the first word too: FirstName. Both are used in programming, in different contexts — PascalCase for classes and types in many languages, camelCase for variables and functions.

When would I use snake_case versus kebab-case?

snake_case (words_with_underscores) is the Python and SQL convention and works everywhere in code. kebab-case (words-with-hyphens) is the CSS and URL convention, and is the safer choice for file names because it avoids case-sensitivity issues across operating systems.

Does sentence case capitalise proper nouns?

It should, but this tool cannot reliably tell a proper noun from an ordinary word without a dictionary, so it lowercases everything except the first letter. Check names and places afterwards — it is a shorter fix than retyping the paragraph.

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