Synesthetize is a free Chrome extension developed by Adam that allows users to induce color-graphemic synesthesia, a condition where letters are perceived as having innate colors. This unique tool replicates a study conducted by scientists in the Netherlands, who found that consistent color coding of letters can induce synesthesia.

With Synesthetize, users can configure the extension to color as many or as few letters as desired, using their preferred colors. This customization allows users to strengthen the effect by using existing associations. Whether you want to experience a full-color alphabet or selectively color specific letters, Synesthetize provides the flexibility to create a personalized synesthetic experience.