All Online Tools
33 browser-based tools. Works on every device.
Save tools you use often by clicking the heart icon on any tool.
Microphone Test
Test your microphone in your browser
Webcam Test
Test your phone or computer camera
Sound Test
Test speakers and headphone channels
Keyboard Test
Test every key on your keyboard
Mouse Test
Test all mouse buttons and scroll wheel
Controller Test
Test Xbox, PlayStation, or USB gamepad
Controller Test (Classic)
Raw gamepad data: buttons and axes
Voice Recorder
Record audio in your browser
Refresh Rate Test
Measure your monitor's refresh rate
Tone Generator
Generate any audio frequency
Touch Screen Test
Test touch sensitivity and dead zones
Vibration Test
Test your phone's vibration motor
Gyroscope Test
Test phone gyroscope and orientation
Accelerometer Test
Test phone accelerometer & shake
Multi Touch Test
How many fingers does your screen support?
Dead Pixel Test
Find dead, stuck, or hot pixels
Stuck Pixel Fixer
Try to fix stuck pixels
Pitch Detector
Detect any musical note in real time
Chromatic Tuner
Tune any instrument to any note
Guitar Tuner
Standard EADGBe guitar tuning
Guitar Alternate Tunings
Drop D, Open G, DADGAD and more
Bass Guitar Tuner
4 and 5 string bass guitar
Guitalele Tuner
Standard ADGCEa tuning
Ukulele Tuner
Soprano, tenor, baritone tunings
Violin Tuner
Standard GDAE violin tuning
Banjo Tuner
Open G, Open D, Celtic tunings
Mandolin Tuner
Standard GDAE paired strings
Viola Tuner
Standard CGDA viola tuning
Cello Tuner
Standard CGDA cello tuning
Metronome
BPM metronome with tap tempo
Online Mirror
Use your camera as a mirror
Spacebar Clicker
Test your CPS speed: spacebar or click
Online Dictaphone
Voice recorder with live transcription
Don't see what you need?
We're always adding new tools. Suggest one and we might build it.
Suggest a Tool