Hardware Tools
Monitor and diagnose hardware: check device specs, performance metrics, and system information directly in your browser.
Calculators 1
Engineering Calculators 1
Resistor Color Code
Decode 4, 5, 6 band resistor colors to resistance and tolerance. Reverse lookup any ohm value to nearest E12/E24/E48/E96 standard and band colors.
Hardware Tools 35
Connectivity 5
USB Device Viewer
View detailed USB device information in your browser using WebUSB API. Check vendor ID, product ID, configurations, interfaces, and endpoints of connected USB devices.
Network Quality
Test your network connection quality in real-time. Monitor network type, bandwidth, round-trip time (RTT), and connection speed using the Network Information API.
Bluetooth Signal Tester
Test Bluetooth Low Energy (BLE) devices in your browser. Scan, connect to nearby Bluetooth devices, read GATT services, and monitor signal strength (RSSI).
NFC Tester
Test NFC tags in your browser using Web NFC API. Read and write NDEF records (text, URI), lock tags to read-only mode. Works on Chrome Android with HTTPS only.
Speed Test
Test your internet connection speed instantly. Measure download speed, upload speed, ping, latency, and jitter. Professional speed test tool with real-time results.
Diagnostics 10
Camera QR & Barcode Scanner
Free online camera-based QR code and barcode scanner. Scan QR codes, UPC, EAN, Code128 and more using your device camera. Fast, secure, and works offline.
Webcam Mirror
Free online webcam mirror tool. Use your camera as a virtual mirror for makeup application, hair check, outfit review, and appearance adjustments. Mirror flip with zoom, filters, and effects.
Battery Tester
Free online battery tester tool. Check battery health, charging status, battery level, and estimated time remaining. Monitor battery performance and get detailed statistics for your device.
Refresh Rate
Test monitor FPS and refresh rate in real-time. Detect 60Hz, 120Hz, 144Hz, 240Hz displays with accurate frame timing analysis. Free Hz checker.
Screen Tester
Free online screen tester tool. Check your monitor for dead pixels, stuck pixels, and display issues using RGB colors, grayscale, and test patterns. Fullscreen mode for accurate testing.
Webcam Tester
Free online webcam tester tool. Test your camera, check video quality, resolution, frame rate, and take snapshots. Perfect for testing webcams before video calls, streaming, or recording.
Dead Pixel
Detect stuck or dead pixels with fullscreen color tests. Cycle through white, black, and primary colors to spot display defects quickly.
Gamepad Tester
Test gamepad controllers (PS4, PS5, Xbox) for stuck buttons, analog drift, and trigger response. Real-time button mapping and deadzone detection.
Microphone Tester
Check your microphone with a live waveform meter. Switch input devices, monitor levels, and catch clipping or low gain instantly in the browser.
Speaker Tester
Verify laptop or desktop speakers with a 440 Hz reference tone or full-range frequency sweep. Test left, right, or stereo channels and adjust volume instantly in your browser.
Input Devices 3
Mouse Tester
Free online mouse tester tool. Test mouse buttons, clicks, double-clicks, scroll wheel, coordinates, and tracking. Check if your mouse is working properly with real-time button response, movement tracking, and event logging.
CPS Test
Test your clicking speed with our CPS (Clicks Per Second) tester. Perfect for gamers to measure mouse click speed in Minecraft, FPS games, and more.
Keyboard Tester
Type to see every key light up on a visual layout (QWERTY/AZERTY, Windows/Mac). Detect stuck keys, broken switches, ghosting. Free, no install, mobile + USB.
Performance 4
Storage Test
Test browser storage performance with IndexedDB and localStorage. Measure read/write MB/s, operations per second and latency. Free, no signup needed.
Memory Speed Test
Test RAM performance with array operations, object allocation, string manipulation and typed arrays. Measure memory speed, ops/sec and efficiency.
GPU Benchmark
Test graphics card performance with WebGL rendering, shader computations, particle simulations and 3D graphics. Measure GPU speed, FPS and capability.
CPU Benchmark
Free in-browser CPU benchmark. Multi-threaded tests (primes, sorting, math) measure single/multi-core speed and let you compare against other systems. No install.
Sensors 13
Step Counter
Free online step counter & pedometer using accelerometer. Track steps, distance, calories burned, walking pace in real-time. No app installation needed.
Motion Analyzer
Comprehensive motion data analyzer combining accelerometer, gyroscope, and orientation sensors. Record real-time charts and export motion data to CSV.
Shake Detector
Detect strong shakes from your phone’s accelerometer. Adjust sensitivity, log shake intensity, and verify motion triggers for games or QA testing in seconds.
Compass Calibration
Verify your phone compass by comparing magnetometer and gyroscope headings. Follow guided motions, capture a true north reference, and measure deviation instantly.
Sound Level Meter
Measure sound levels and noise with live decibel meter. Monitor ambient noise, track dB levels, and get warnings for loud environments using your microphone.
GPS Location Viewer
Track your position with navigator.geolocation in real time. View a Leaflet-based offline map, monitor speed, altitude, accuracy, and heading directly in your browser.
Orientation Tester
Test your device orientation with live 3D phone visualization. Monitor tilt angles, rotation values, and device position in real-time with interactive display.
Ambient Light Tester
Test your device's ambient light sensor with live analog meter. Measure illuminance in lux, track brightness levels, and monitor light conditions in real-time.
Proximity Sensor Tester
Test your device's proximity sensor in real time. Start the sensor, see instant near or far status with animated feedback, and monitor distance readings in centimeters.
Compass
Free online digital compass with smooth rotation. Find magnetic north, get precise heading, GPS coordinates in real-time. No app needed. Works on phone & tablet.
Gyroscope Tester
Test your device's gyroscope with live 3D visualization. Monitor alpha, beta, gamma rotation values and see orientation changes in real-time with interactive cube.
Magnetometer Tester
Measure ambient magnetic field strength in microteslas and view a live compass needle. Start the magnetometer, chart real-time readings, and calibrate heading instantly.
Accelerometer Tester
Test your device's accelerometer in real-time with live 3D visualization. Monitor X, Y, Z axis acceleration values and motion direction instantly.
