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Capitalize the first letter of each sentence automatically.
✍️ Capitalizes the first letter of each sentence. Preserves proper nouns best manually.
Sentence casecapitalizes only the first letter of each sentence, leaving the rest lowercase. It's the natural capitalization of normal writing and the most readable for paragraphs of text.
This tool capitalizes after sentence-ending punctuation (. ! ?) but cannot detect proper nouns like names, brands, or places. After conversion, manually capitalize "john" → "John," "paris" → "Paris," etc. For most cleanup tasks (text typed in all caps), this tool gets you 95% of the way there.
The Sentence Case Converter converts sentence case converterfrom one unit to another using the exact internationally defined conversion factors. Type a value, choose your source and target units, and the converted result is shown instantly — no waiting, no page reload.
Manual conversion is error-prone because it means memorizing ratios (how many feet in a meter, how many pints in a liter). This tool removes that friction: the conversion factor is built in, and the math is done to full precision with no rounding until the final displayed number.
Common uses: people reach for this tool when they need to look up a capitalize first letter of each sentence, sentence case generator, convert text to sentence case, or auto capitalize sentence starts.
Browser-based tools like this one have a few real advantages over installed software or manual methods:
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