Sentence case capitalizes only the first word and proper nouns, while uppercase converts every letter to a capital. They produce very different visual results.
Sentence case capitalizes only the first word of a title or heading and any proper nouns, treating the text exactly like a sentence. It is the dominant style in British English and digital product interfaces.
Sentence case is the standard for user interfaces, navigation menus, software documentation, and most British publications. Many technology companies mandate it for product copy.
Open Sentence Case converterUppercase converts every letter to its capital form without exception. It is used for warning labels, legal notices, acronyms, design contexts, and any text requiring maximum visual weight.
All caps is appropriate for short, high-emphasis phrases, system alerts, and design headlines. Extended uppercase text is harder to read and should be used sparingly.
Open Uppercase converterSentence case is the standard for user interfaces, navigation menus, software documentation, and most British publications. Many technology companies mandate it for product copy.
All words after the first are lowercase unless they are proper nouns. Common nouns, verbs, and adjectives are not capitalized.
All caps is appropriate for short, high-emphasis phrases, system alerts, and design headlines. Extended uppercase text is harder to read and should be used sparingly.
Every letter is capitalized. Punctuation, numbers, and symbols are unchanged. Letter-spacing is often added in design contexts to improve readability.
Choose sentence case for headings, British publications, and software interfaces where readable, conversational text is preferred.
Choose uppercase for short emphasis phrases, warnings, and design headlines where maximum visual weight is the goal.
Extended uppercase text is harder to read than sentence case. Sentence case preserves the natural rhythm of prose, while uppercase is best reserved for brief, high-stakes labels.