Wikipedia Peek is a free add-on for Chrome that provides previews of linked articles on Wikipedia pages. Developed by Niklas Gollenstede, this handy tool allows you to quickly preview the title section of an article by simply hovering over a link or tapping on it.

The add-on offers several features to enhance your browsing experience. It provides full touch support, allowing you to easily navigate through the previews on touch-enabled devices. Additionally, it loads the first paragraph and thumbnail of the linked article, giving you a glimpse of its content.

Wikipedia Peek offers four different themes to choose from - Wikipedia, white, black, and grey/blue - allowing you to customize the appearance to your preference. You can also adjust the font size and transparency of the pop-up window.

This add-on works not only in Chrome but also in Firefox, Opera, and Firefox for Android, ensuring compatibility across multiple platforms. The code for Wikipedia Peek is open source and available on GitHub, where you can report any issues you encounter.

It's worth noting that while the add-on itself does not collect any data, the article previews are queried from the target host in a separate query each time you hover over a link for an extended period.

Overall, Wikipedia Peek is a useful tool for anyone who frequently uses Wikipedia. It provides quick and convenient access to article previews, allowing you to preview content without leaving the current page.