KeyCPS

A clean keystrokes and CPS overlay. It shows your movement keys (WASD, jump), your attack and use buttons, and a live clicks-per-second count for each — so you can actually watch your click speed while you play, not guess at it.

It handles rebound keys the way you'd hope. If you've moved attack or use onto a keyboard key instead of a mouse button, it tracks that — it doesn't just assume left and right click. And the CPS counter catches fast clicking accurately rather than dropping inputs between ticks.

Drag the HUD wherever you want it — bind a key for that under Controls — and the config lets you tweak colours, layout, the background, compact mode and the warning thresholds. Small and out of the way, or front and centre; your call.

Client-side, and it runs on everything from 1.21 to 1.21.11.