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PrismKit

Stopwatch & Timer

Local

A stopwatch with laps, a countdown timer that beeps when done, and a configurable Pomodoro timer that stays accurate in background tabs.

Screen Test

Hunt for dead or stuck pixels with fullscreen solid colours, a gradient and a checkerboard, and see your screen's resolution, pixel ratio and refresh rate.

Markdown to HTML

Convert GitHub-flavoured Markdown to HTML and preview the result in a sandboxed frame.