About Sentence Case
Sentence Case is a free, fast and reliable online tool. Capitalize the first letter of each sentence. Try it with "hello world. this is a test.". Everything runs locally in your browser — no files are uploaded and no data is stored, keeping your information completely private. It works responsively on both desktop and mobile devices.
How to use Sentence Case
- 1 Paste or type your content in the input box
- 2 Try the sample "hello world. this is a test." to see how it works
- 3 The result updates automatically in real time
- 4 Click "Copy" to copy the output
Frequently asked questions
What can I do with Sentence Case?
Capitalize the first letter of each sentence. Try it with "hello world. this is a test.".
Is Sentence Case free to use?
Yes — Sentence Case is a free online tool. No sign-up or login is required, and there are no hidden charges or usage limits.
Do I need to create an account to use Sentence Case?
No. Sentence Case runs entirely online in your browser — there is no account to create, no login, and nothing to install.
Does Sentence Case upload my data?
No. Everything runs locally in your browser. Your input never leaves your device, is never stored, and is never tracked, so it stays private.
Free, online, and private
Free to use
Sentence Case is completely free. There is no account to create, no login, and no hidden charge or usage limit.
Runs online in your browser
It is a free online tool that runs entirely in your browser. Nothing to download or install — open the page and start using it right away.
Your data stays private
All processing happens locally on your device. Your input is never uploaded, stored, or tracked, so it never leaves your browser.