Joy-Con Drift Test.
Joy-Con drift is the Switch's most infamous fault — an analog stick that reports movement while your thumb is nowhere near it. Pair a Joy-Con or Switch Pro Controller to your computer over Bluetooth, let go of the stick and watch: a healthy stick sits dead centre, a drifting one floats off on its own. This test plots the stick live, tracks how far it wanders at rest, and gives you a plain verdict with a numeric score. Runs in your browser on the Gamepad API.
Let go of the stick
Online Joy-Con drift test.
The score is each stick's distance from centre, as a percentage of full travel — the peak is the furthest it drifted while you left it alone. A single Joy-Con fills one plot; a Switch Pro fills both.
Get an honest Joy-Con reading
- Pair over Bluetooth firstHold the small sync button on the Joy-Con's rail until the lights run, then pair it in your PC's Bluetooth menu. A single Joy-Con fills one plot; a Switch Pro Controller fills both left and right.
- Take your thumb offDrift only means anything when you're not touching the stick. Rest the Joy-Con flat, let the stick fully release, and don't lean it against anything that could nudge it.
- Give it ten secondsJoy-Con drift is often intermittent — it can appear as the stick warms up or when held at an angle. Watch for at least ten seconds; the peak ring keeps the worst moment so you don't have to catch it live.
- Compare to the Switch's deadzoneA tiny 2–4% offset is normal and the Switch hides it inside its deadzone. Real drift pushes well past that and keeps a menu cursor or camera moving with the stick untouched.
How to run the Joy-Con drift test
- 1Pair the controller to your PC. Press the sync button on the Joy-Con rail (or the Pro Controller's top button) and add it in your computer's Bluetooth settings. The browser needs the pad connected as a Bluetooth gamepad.
- 2Press any button to wake it. Browsers hide a gamepad until it sends input, so one press reveals it and the readout switches from "Connect a Joy-Con" to live values.
- 3Let go of the stick. Hands off. The dot should snap to dead centre. The live offset shows how far the stick currently sits from centre, as a percentage of full travel.
- 4Read the verdict. No drift, Slight drift, or Drift detected, based on the peak the stick reached at rest. Cross-check the resting scatter on the deadzone test or the full gamepad tester.
How the Joy-Con drift test measures your stick
An analog stick reports its position as two numbers — an X axis and a Y axis — each from -1 to +1, with (0, 0) meaning perfectly centred. This test reads those axes through the browser's Gamepad API every frame and computes the stick's distance from centre as √(x² + y²). At rest that distance should be almost zero; the further it sits from zero on its own, the worse the drift.
The peak is the largest resting distance seen since you last reset, drawn as a ring so a brief, intermittent drift doesn't slip past. We convert it to a percentage of full travel for the score, then apply simple bands: under 6% reads as clean, 6–12% as a slight offset the Switch would absorb, and over 12% as genuine drift you'd feel in a game.
Classic Joy-Con drift is a hardware problem. The stick uses a small potentiometer whose carbon contacts wear and collect dust, so the resting voltage reads off-centre. No browser can repair that — but it can measure it precisely, which is exactly the evidence Nintendo's support asks for. Nintendo has repaired Joy-Con stick drift free of charge in many regions; a clear score and a visible resting footprint make that claim straightforward. Newer third-party sticks use Hall-effect sensors that don't wear the same way.
When to test for Joy-Con drift
A menu cursor moves on its own
The classic symptom: you set the Joy-Con down and the cursor or camera drifts. This confirms it's the stick, not the game.
Before a Nintendo repair claim
Support wants proof of the fault. A drift score with a visible resting peak is exactly the evidence that gets a repair approved.
Buying a used Switch or Joy-Cons
Drift is the number one reason second-hand Joy-Cons are cheap. Run this before you pay — sellers rarely disclose it.
After a DIY stick swap
Replaced the Joy-Con stick yourself? Confirm the new module rests at centre before you reassemble the shell.
Deciding repair vs replace
A borderline 5–8% offset may clear with a recalibration; a runaway 20%+ peak means the stick module is done.
Testing a Hall-effect replacement
Fitted a drift-proof Hall-effect stick? Test it a few months in and confirm the resting score really stays near zero.
Joy-Con drift glossary
- Joy-Con drift
- A Switch stick reporting movement while untouched — its resting position sits off-centre and sends unwanted input.
- Resting offset
- How far the stick sits from dead centre when released, as a percentage of full travel. Near zero is healthy.
- Peak
- The largest resting offset seen since the last reset, captured as a ring so intermittent drift is caught.
- Potentiometer
- The wiping resistor the Joy-Con stick uses to sense position. Its contacts wear and collect dust, the usual cause of drift.
- Switch Pro Controller
- Nintendo's full-size Switch pad. It reports both sticks over Bluetooth, so it fills both plots here.
- Hall-effect stick
- A contactless magnetic stick sensor with no wiping parts, sold as immune to the drift potentiometers develop.
Frequently asked questions
Can I test Joy-Con drift without a Switch?
Yes — that's the point of this tool. Pair the Joy-Con or Switch Pro Controller to your PC, Mac or Android phone over Bluetooth and it connects as a standard gamepad the browser can read. You don't need the Switch console or any app; the test reads the stick's live position directly and scores its drift at rest.
How do I connect a Joy-Con to my computer?
Detach the Joy-Con and find the small round sync button on the rail (between SR and SL). Hold it until the four green lights run back and forth, then open your computer's Bluetooth menu and pair the "Joy-Con (L)" or "Joy-Con (R)" entry. A single Joy-Con reports one stick; pair the Switch Pro Controller the same way with its top sync button to test both sticks.
Will Nintendo fix Joy-Con drift, and does this help?
In many regions Nintendo has repaired Joy-Con stick drift at no charge, even out of warranty. A drift test result — a numeric score with a visible resting-peak footprint — is exactly the kind of evidence their support asks for, so running this first makes the claim quicker to explain. Availability and terms vary by country, so check Nintendo's support site for your region.
What counts as drift versus a normal resting offset?
Let go of the stick and read the peak. Under about 6% of full travel is normal — every stick has a tiny resting offset the console absorbs into its deadzone. A peak that climbs past 12% and keeps the dot floating away on its own is genuine drift. The test labels it No drift, Slight drift, or Drift detected so you don't have to interpret the raw number.
Can I fix Joy-Con drift myself?
Sometimes. Recalibrating the stick and blowing compressed air (or a little isopropyl alcohol) under the stick cap clears dust and can revive a mildly drifting Joy-Con. If the resting offset stays high, the potentiometer is worn and the real fix is a replacement stick module — many people fit a Hall-effect stick, which doesn't wear the same way. Re-test here after any fix to confirm it centres.
Is the Joy-Con drift test free and private?
Yes. It's completely free, needs no sign-up, and reads your controller entirely in the browser through the Gamepad API. Nothing about your Joy-Con or your inputs is uploaded — the scoring happens on your device and is discarded when you close the page.