Adaptive Trigger Test: Free Online DualSense L2 R2 Checker
Test your DualSense L2 and R2 trigger range live in your browser. See real time pull percentage, full range confirmation, and smoothness for both triggers, plus an honest guide to what a browser can and cannot check about true adaptive resistance.
Connect your controller and slowly pull L2 and R2 to full press, then release fully, to see a live reading and a plain language explanation of your trigger range.
This reads the standard 0 to 100 percent analog trigger position through the browser. True motorized resistance cannot be read or controlled from a web page, see the explanation below.
How to test your adaptive triggers
Connect your controller
Plug in your DualSense over USB C, or pair it over Bluetooth, then click Detect Controller and press any button to wake the browser Gamepad API.
Pull L2 slowly to full press
Watch the L2 bar climb smoothly from 0 to 100 percent. A clean, steady climb without gaps or jumps is a good sign.
Release and repeat for R2
Release L2 fully back to 0 percent, then repeat the same slow pull and release on R2. The max reached stats confirm both triggers hit full range.
Check the analysis
The grade and analysis panel summarize whether your triggers reached full range smoothly, or whether something looks off.
What are adaptive triggers
Adaptive triggers are a PS5 DualSense exclusive feature built into L2 and R2. Small motors inside the trigger mechanism create variable resistance as you pull, simulating the tension of drawing a bowstring, the pressure of a brake pedal, or the click of a firearm trigger, depending on what the game programs. This is often searched as adaptive trigger test, DualSense trigger tester, or L2 R2 checker.
Position versus resistance
Trigger position is a simple 0 to 100 percent value showing how far the trigger is pulled. Resistance is the physical force pushing back against your finger, a completely separate mechanism.
Why the browser sees less
Browsers read controllers through the standard Gamepad API, which only exposes the trigger position value. The proprietary commands that control motor resistance profiles are not part of that standard.
What this test confirms
This tool confirms your trigger travels smoothly across its full range and returns cleanly to zero, which is the most common real world symptom of a worn or damaged trigger.
A note on testing real adaptive resistance
A browser page cannot read or trigger the motorized resistance effects themselves, and it cannot verify features like partial locks, vibration pulses, or multiple resistance zones within a single trigger pull. This is a limitation of the standard Gamepad API used by every website, not a limitation of this specific tool. To test true adaptive resistance, you need one of the options below.
Any adaptive trigger game on PS5 exercises the real hardware directly
Lets you program and preview resistance effects on PC over USB C
Some PC ports support adaptive triggers directly without extra software
Confirms full range and smooth travel, not motor resistance
Which controllers have adaptive triggers
Motorized resistance built into both L2 and R2
Mechanical switch that shortens trigger travel, not motorized resistance
Standard fixed resistance triggers
Standard fixed resistance triggers
No motorized trigger hardware included
A small number of newer third party controllers copy the concept
Fixing common trigger problems
- If the reading does not reach 100 percent, dust or debris around the trigger mechanism is a common cause, a can of compressed air often helps.
- If the trigger feels stiff, gritty, or physically stuck partway, this points to a mechanical issue with the motor assembly rather than a browser or software problem.
- If readings look noisy or jump around instead of climbing smoothly, try a wired USB C connection to rule out Bluetooth interference.
- If adaptive resistance stopped working in games but the trigger still moves normally here, check for a pending controller firmware update through your PS5 console settings.
- Frequent heavy adaptive trigger use draws more battery than standard triggers, so shorter sessions between charges can be normal rather than a fault.
Test your other controller specs
Trigger range is one part of overall controller performance. Check the rest of your setup with our other tools.
Gamepad Tester
Full button, stick, and trigger diagnostics in one interface. Open Gamepad Tester
Vibration Test
Check haptic motor function, the other half of the DualSense feedback system. Open Vibration Test
Stick Drift Test
Check your analog sticks for unwanted resting movement. Open Stick Drift Test
Frequently asked questions
Can this tool test the actual trigger resistance?
No. It reads the standard trigger position value that every browser can access, from 0 to 100 percent. The motorized resistance itself is controlled through proprietary commands that only a PS5 console, DSX on PC, or a native adaptive trigger game can send.
Why does my controller not show up?
The Gamepad API only activates after you press a button or move a stick on the controller. Click Detect Controller, then press any button to wake it up.
Do standard Xbox controllers have adaptive triggers?
No. Standard Xbox controllers use fixed resistance triggers. The Xbox Elite Series 2 has adjustable trigger stops, a mechanical switch that shortens travel, which is a different feature from motorized adaptive resistance.
My L2 does not reach 100 percent. Is it broken?
Not necessarily. Try cleaning around the trigger mechanism with compressed air first, since dust buildup is a common and fixable cause. If the reading still does not reach full range after cleaning, the trigger may need repair.
Does using adaptive triggers drain the battery faster?
Yes, heavy adaptive trigger and haptic feedback use draws noticeably more power than standard rumble, so expect shorter battery life during intense sessions compared to standard mode.
Why do PC games not feel the same as PS5 for adaptive triggers?
Adaptive trigger support on PC depends entirely on the individual game or a third party tool like DSX. Many PC ports do not implement it at all, even when played with a genuine DualSense controller.
Is DualSense Edge tested the same way as the standard DualSense?
Yes, both report the same standard trigger position values through the Gamepad API, so this test works identically on either controller.
Should I use USB C or Bluetooth for this test?
Either works, but USB C tends to give steadier, less noisy readings, so it is the better choice if you suspect a genuine hardware issue rather than a connection issue.
Why does my trigger feel stiff only on one side?
Uneven resistance between L2 and R2 while the position values still read correctly usually points to a mechanical or motor issue on the stiffer side rather than a software problem.
Do I need to install software to test my triggers?
No. This adaptive trigger test runs entirely in your browser. There is nothing to download and no account is required.