Are NanoTools completely free to use?

Yes, all basic tools on NanoTools are completely free to use with no registration required. We offer premium features for power users.

Is my data secure when using NanoTools?

Your files are processed securely and are automatically deleted after processing. We do not store your files or data on our servers.

No installation required. All tools work directly in your browser on any device - computer, tablet, or smartphone.

We support a wide range of formats including PDF, JPG, PNG, WebP, GIF, JSON, XML, CSV, and many more depending on the tool.

Capitalize sentences online for free. Fix sentence capitalization automatically. Proper grammar formatting.

Input Text

Aa

Enter text to properly capitalize sentences

1

Enter lowercase or improperly capitalized text

2

Convert text to proper sentence case automatically

3

Copy the properly capitalized text for use

Yes, it normalizes all text to lowercase, then capitalizes sentence starts and "I".

It recognizes periods (.), question marks (?), and exclamation points (!) as sentence endings.

The tool applies sentence case formatting globally. For selective capitalization, use manual editing.

No, it only capitalizes sentence starts and "I". Proper nouns need manual capitalization.