PrismKit網頁螢幕測試螢幕測試在瀏覽器中執行本機複製連結Markdown用全螢幕純色、漸層與棋盤格找出壞點或亮點，並查看螢幕的解析度、像素比與更新率。按鍵代碼資訊Press any key to see its JavaScript key, code, keyCode, location, and active modifiers.碼錶與計時器A stopwatch with laps, a countdown timer that beeps when done, and a configurable Pomodoro timer that stays accurate in background tabs.