Audio Frequency Test
Play a low-volume test tone at a chosen frequency and duration.
Utilities↗
CATEGORY
More Tools
Explore 27 free online tools for Utilities. Use them directly in your browser without installation or sign-in.
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Random Number
Create a secure random integer from the specified range.
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Review Rating Calculator
Calculate the average rating by the number of reviews per star.
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Mouse Double Click Test
See total clicks and double clicks for the left, middle and right buttons instantly.
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Mouse Button and Wheel Tester
Inspect mouse buttons, wheel movement and pointer coordinates.
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Microphone Signal Level Meter
Measure relative digital dBFS levels rather than calibrated environmental sound pressure.
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Microphone Test
Inspect an audio waveform and record a local playback sample.
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Monitor Pixel Test
Cycle solid colors in fullscreen for visual pixel inspection.
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Reaction Time Test
The screen signal is changed and it measures the time to walk to click.
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Browser Information
Inspect browser-provided platform, language, timezone and display information.
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Browser FPS Test
Use requestAnimationFrame to measure browser rendering FPS.
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Spirit Level
Displays left and right side tilting with device direction sensor.
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Scroll Speed Test
Measure the momentary speed of the mouse wheel or touchpad scroll.
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Stereo Speaker Test
Play a test tone through the left, right or both channels.
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Aim Test
Measure the average response time to click the target appearing in a random location.
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Online Compass
Read an available absolute heading sensor and show its support and permission status.
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Online Metronome
Control tempo, beats per bar and volume with a visual beat indicator.
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Online Piano Keyboard
Play a keyboard octave with screen keys or mapped computer keys.
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Webcam Test
Preview your camera, inspect its settings and save a still frame.
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Download Speed Test
Measure a chosen download size against a public Cloudflare endpoint.
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Vibration Test
Send a chosen vibration pattern to supported devices and stop it when needed.
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Click Speed Test
Measure the number of clicks and CPS for a limited time.
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Keyboard Tester
Inspect key names, codes, repeat events and simultaneous key presses.
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Typing Speed Calculator
Calculate CPM and WPM with input letter and word count.
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Text to Speech Reader
Read text with available browser voices and control speed, pitch and volume.
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Screen Resolution Information
Compare logical screen size, viewport dimensions and device pixel ratio.
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OS and Platform Information
Inspect available platform hints without claiming hidden OS details.
Utilities↗