Sentence case converter
Fix text that is all in capitals or all in small letters. Each sentence starts with a capital, and everything else is lowercase.
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About this tool
Sentence case capitalizes the first letter of each sentence and the word I, and writes everything else in lowercase. It is how normal prose is written.
It is the quickest fix for a paragraph that was typed with Caps Lock on, or pasted from a source with no capitals at all. Proper names are not detected, so check names and places after converting.
Example
hello there. how are you? i am fineHello there. How are you? I am fineWhen to use it
- Repairing text typed with Caps Lock on
- Cleaning transcripts and captions
- Tidying notes and messages
- Headings in sentence-style design systems
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Questions
Will names keep their capitals?
No. The converter lowercases everything except the first letter of sentences and the word I, so proper names need a quick manual fix.
What counts as the end of a sentence?
A full stop, question mark or exclamation mark, and also a new line.
Can I use it for headings?
Yes, many websites and style guides prefer sentence case headings because they read more naturally.
Other case converters
- UPPERCASE
- lowercase
- Title Case
- camelCase
- PascalCase
- snake_case
- kebab-case
- CONSTANT_CASE
- tOGGLE cASE
- aLtErNaTiNg