Text Case Converter: Title Case, Sentence Case, Camel Case, and More

Anyone who writes code, copy, or content deals with text case constantly: a headline in title case, a slug in kebab-case, a variable in camelCase, a database field in snake_case. Each context expects its own convention, and mixing them up is one of the most visible signs of sloppy work. A text case converter switches between the styles in one click, but knowing what each case is and when to use it is what lets you choose the right one in the first place. Headline styles in particular have their own rules — some words like "and" or "the" stay lowercase in title case — which is why automated converters are such a timesaver.

The Most Common Text Cases

• UPPER CASE — all capitals, used for emphasis, acronyms, and constant names.
• lower case — no capitals, common in URLs and informal copy.
• Title Case — major words capitalised, standard for headlines and headings.
• Sentence case — only the first word capitalised, typical in articles and UI text.
• camelCase — words joined with no spaces, first letters capitalised, used in JavaScript.
• snake_case — words joined by underscores, used in Python and databases.
• kebab-case — words joined by hyphens, used in URLs and CSS class names.

Title Case:     Every Word Starts Capitalised
Sentence case: Only the first word is capitalised
camelCase:      textCaseConverter
snake_case:     text_case_converter
kebab-case:     text-case-converter

Choosing the Right Case

The rule of thumb is simple: match the conventions of wherever the text is going. Programming languages and frameworks often specify a case in their style guides — camelCase in JavaScript, snake_case in Python, kebab-case in CSS class names and URL slugs. Content platforms are equally particular about headings and meta descriptions. When you are unsure, look at the surrounding code or copy and imitate the style already in use. These conventions exist for a reason: they make code scannable and URLs predictable, so consistency matters more than any individual choice.

Convert, Don’t Retype

Converting cases by hand is where mistakes creep in: retyping drops apostrophes, capitalises the wrong word, or leaves a stray underscore behind. A case converter changes only the casing and preserves every other character, which makes it safe for long lists of variables, headlines, or file names. Run your text through it once, check the result against the platform’s convention, and move on — no manual retyping required. This matters most when you are converting an entire dataset or a large document, where a single manual slip is easy to miss.