UPPERCASE
Convert text to UPPERCASE. All letters become capital letters.
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Paste text above and it is converted to UPPERCASE as you type — every letter becomes a capital, while numbers, punctuation and spacing are left alone. Useful for headings, labels, constants in code, or fixing text typed with Caps Lock off.
Need the opposite, or a programming style? See lowercase, Sentence case, Title Case, or the all-in-one case converter for camelCase, snake_case and more.
Frequently Asked Questions
Paste it into the box above. The uppercase version appears instantly; use the copy button to grab it.
No. Only letters have an upper-case form; digits, punctuation and spaces pass through unchanged. Accented letters such as é become É.
Excel: =UPPER(A1). JavaScript: text.toUpperCase(). Python: text.upper(). C#: text.ToUpperInvariant().