Sentence Case Converter ↪ OMGConvert.com ↩
Convert your text to sentence case as you type (first letter of each sentence capitalized). Copy or download as .txt.
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All case tools
Run lowercase, UPPERCASE, Sentence case, Capitalize Case, and aLtErNaTiNg cAsE from one editor on the homepage.
lowercase
Convert the whole text to small letters. Handy for normalizing input or matching lowercase-only styles (this page).
UPPERCASE
Convert every letter to capital letters for emphasis, headings, or social posts.
Sentence case
Capitalize only the first letter of each sentence (and after .?!); the rest stays lowercase.
Capitalize Case
Capitalize the first letter of each word—including after spaces and common openers like quotes or brackets.
aLtErNaTiNg cAsE
Alternate uppercase and lowercase letter by letter for stylized or playful text.
About This Sentence Case Converter
Sentence case means normal paragraph style: the first letter of the passage is capitalized, the rest of the line flows in lowercase, and new sentences start with a capital after endings like .? and ! (when followed by a space). This tool is ideal for cleaning notes, blog posts, school papers, and long blocks of text that were typed in the wrong case.
Your text is transformed on your own computer inside the browser—we never receive or save what you type, so you can polish confidential or client copy with less worry.