Double Shot Search: Query side-by-side is a free Chrome add-on developed by zmarty. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This add-on allows users to search in both Bing and Google simultaneously by displaying the results from both search engines side by side.

With Double Shot Search, users can perform a multi-search across two popular search engines, enabling them to compare and contrast the results easily. This is particularly useful for those who want to see how different search engines rank websites or for those who want to gather information from multiple perspectives.

The add-on seamlessly sets itself as the default search engine, making it convenient for users to access the dual search functionality without any additional steps. It is worth noting that Double Shot Search works best on high-resolution screens, ensuring a visually pleasing experience.

Overall, Double Shot Search: Query side-by-side is a useful Chrome add-on for those who want to leverage the power of both Bing and Google simultaneously for their search queries.