xwTweaks is a free Chrome add-on developed by Hayden Schiff, specifically designed to enhance the quality of life for New York Times crosswords and puzzles. This program offers various features to improve the user experience while solving puzzles. Users can benefit from keyboard shortcuts for crosswords and acrostics, including pencil mode by holding Shift and pausing with the grave (`) key. Additionally, xwTweaks adds convenient links to all puzzles in the navigation bar for quick access.

Moreover, this add-on provides helpful enhancements such as letter shading for pangrams in Spelling Bee, clearer tile selection indicators in SET, and the removal of style annoyances like crossword board title text, collapsible stats page bar graph, and unobtrusive puzzle link badges. xwTweaks aims to streamline puzzle-solving experiences for New York Times enthusiasts.