Ostendo is a tool primarily designed for capturing and sharing high-quality screenshots from YouTube. This includes a unique feature where users can create beautiful 'Tiles' of YouTube thumbnails and comments.

Ostendo supports customization in relation to the shape of the captured image, the contents of the screenshot, and the theme, allowing users to tailor capture to their specific needs.

The tool provides users with an option to capture Thumbnails in Tile format with customizations for size, color theme, video length, view count and video age.

Users can also capture YouTube comments, with options to customize the color theme and the option to show the comment and one reply. Moreover, Ostendo offers a feature to capture video screenshots, and users can draw on these screenshots with different colors and brush sizes.

The tool is intended to create aesthetically pleasing screenshots for sharing on various platforms like Tweets, Discord messages, or Reddit posts. The images created by Ostendo can either be saved directly or copied to the clipboard for quick sharing.

Ostendo is designed following recommended practices for Chrome extensions and does not collect or use user data, ensuring the tool prioritizes user privacy.