Mouse keeps double-clicking? Do this first.

Unwanted double-clicks (“chatter”) usually come from a tired switch or twitchy software. Start quick and simple; stop when it’s fixed.

Step 1 — Confirm it’s not you (30 seconds)

Open the Click Latency Checker, click steadily for 10–20 s. If you see surprise extra clicks or timing spikes, carry on.

Step 2 — Easy software wins (1–3 minutes)

Slow the OS double-click speed:
Windows: Settings → Bluetooth & devices → Mouse → Double-click speed (slide towards Slow).
macOS: System Settings → Mouse → Double-click speed (slide slower).
Quit helper apps (Logi Options, Razer Synapse, etc.). Test again. Then re-enable and check if one setting triggers it.
If your software exposes debounce time, add 2–4 ms and retest.

Step 3 — USB & wireless oddities (1 minute)

Plug direct to the PC/laptop (not a hub/monitor). Try another port.
For wireless receivers, use a front USB port or a short extension so it’s near the mouse. Fresh batteries/charge.

Step 4 — The click switch reality check (2 minutes)

Most chatter is a worn microswitch. You can sometimes limp on by blowing out dust: short bursts of compressed air around the button (no liquids). If it only behaves for a day or two, the switch is on the way out.

If you’re comfortable soldering: look up your switch model (e.g. “Kailh GM 8.0”, “Omron D2FC-F-7N”). Otherwise it’s time to replace the mouse.

Good replacements (quiet, reliable)

Logitech MX Master 3S — quiet office, multi-device.
Razer DeathAdder V3 — lightweight, low latency.
Logitech Lift Vertical — comfy, less wrist strain.

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Verify the fix

Re-run the latency test for 10–20 s. If the random doubles have gone, you’re done. If they creep back, that switch is tired.