Newtion is a Chrome extension developed by cohu.dev that allows users to use a new-page shortcut for Notion in their web browser. With this extension, users can easily create and open new Notion pages using a simple keyboard shortcut.

One of the main features of Newtion is that it is an open-source software with the source code publicly available under the MIT license. This ensures transparency and allows users to contribute to its development if they wish to do so.

In terms of safety, Newtion requires Notion's official API but only requires permissions to insert data. No user information is required, ensuring the privacy and security of users' data.

To use Newtion, users need to follow a three-step setup process. First, they need to prepare Notion integrations by accessing the integration settings page and creating a new integration. Then, they need to prepare a Notion database by creating a new page with a full-screen database and inviting their integrations. Finally, users need to set up Newtion by inputting the database ID and API secret in the extension's settings.

Once Newtion is set up, users can use the shortcuts `Cmd/Ctrl+Shift+L` to open the setting popup and `Cmd/Ctrl+Shift+I` to create and open a new Notion page.

Newtion is useful in various use cases, such as when users want to summarize information from a website in Notion, have trouble finding a shortcut to open a new page in the browser version of Notion, or when opening a new page in Notion increases the number of pages in the sidebar.

Overall, Newtion is a convenient Chrome extension that enhances the Notion experience by providing a quick and easy way to create and open new pages.