Prototype is a free Chrome add-on developed by nDimensional Studios. It replaces the new tab page with a unique and innovative self-styling scratchpad. With Prototype, users can easily jot down notes, ideas, and reminders directly on their browser's new tab page.

The main feature of Prototype is its self-styling capability. Users can customize the appearance of their scratchpad by choosing from a range of fonts, colors, and backgrounds. This allows for a personalized and visually appealing note-taking experience.

In addition to its styling options, Prototype also offers basic formatting tools such as bold, italic, and underline. Users can easily format their text to emphasize important points or create headings within their notes.

Overall, Prototype is a useful tool for those who frequently use their browser's new tab page as a scratchpad. Its self-styling feature and basic formatting options make note-taking a more enjoyable and efficient process.