Sentence case converter — fix capitalisation automatically
Fix capitalisation instantly — sentence case, title case, upper or lower.
Text with wrong capitalisation
Corrected text
Guide, features and FAQ for sentence case converter(tap to expand)
How to sentence case converter in your browser
Turn shouty or inconsistent text into correctly capitalised prose. Sentence case capitalises the first letter after every full stop, question mark, exclamation mark and line break, keeps acronyms such as PDF and NASA untouched, and restores days and months.
- 1Paste the text with wrong capitalisation.
- 2Choose the case you want.
- 3Fine-tune acronym and proper-noun handling.
- 4Copy or download the corrected text.
What this sentence case converter tool does
Five conversions
Sentence case, Title Case, Capitalise Every Word, lower case and UPPER CASE.
Acronym aware
Words written entirely in capitals stay that way, so brand names and abbreviations survive.
Proper noun fixes
Days of the week and month names are recapitalised automatically.
Why people use it
- Free with no account, no email and no watermark
- Runs in the browser — documents stay on your device
- Works on Windows, macOS, Linux, Android and iOS
- Also great for convert text to sentence case and title case converter
Frequently asked questions
Does title case follow style rules?
- Yes — short joining words such as “and”, “of” and “the” stay lower case unless they open the title.
Will it break names?
- Names already written in capitals are preserved; unusual spellings can be adjusted afterwards.
Does the sentence case converter tool work for online form and portal uploads?
- Yes. It is built for portals that enforce strict file limits — exam boards, job applications, university and government forms. You control the output before you download it.
Will it work on a low-end phone or a slow mobile connection?
- Yes. Files are processed inside your browser instead of being uploaded, so nothing depends on upload speed and it works on budget phones on 3G or 4G.
Is there any charge, watermark or sign-up?
- No. Every tool is completely free, unlimited, watermark-free and requires no account, email or payment.
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