Capitalisation changes how text feels. The same heading can look formal, friendly or shouty depending on its case. Choosing the right style — and using it consistently — makes your writing look professional and easier to scan.
The four main styles
- Sentence case: Only the first word and names are capitalised
- Title Case: Most Main Words Are Capitalised
- UPPERCASE: EVERY LETTER IS CAPITALISED
- lowercase: no capital letters at all
Where each one works best
Sentence case is the modern default for website headings, buttons and app interfaces because it reads naturally. Title case suits book titles, news headlines and formal reports. Uppercase is best kept for very short labels such as 'NEW' or 'SALE', because long uppercase text is harder to read and can feel like shouting. Lowercase is mostly a stylistic choice for brands and usernames.
Title case rules in brief
Capitalise the first and last word and all nouns, verbs, adjectives and adverbs. Keep short articles, conjunctions and prepositions (a, an, the, and, but, of, in, on) lowercase unless they start the title. Different style guides vary slightly, so pick one and stick with it.
Common mistakes
- Mixing title case and sentence case on the same page
- Typing whole paragraphs in capitals for emphasis
- Forgetting to capitalise brand names like iPhone or YouTube correctly
- Changing case manually and missing words
Fix case in one click
If you have pasted text in the wrong case, the Legend Tools Case Converter can switch it to sentence, title, upper, lower or alternating case instantly. Afterwards, read it once and correct proper nouns that need special capitals.