Tests & interactive

Browse 20 Murelio browser utilities for device tests and interactive tools. Open each focused tool immediately without installing software or creating an account.

• Scientific Calculator

  Evaluate mathjs expressions in DEG or RAD mode and keep up to 20 recent results.

• Analog Clock

  Show the browser's current local time with analog hands and a digital time, refreshed once per second.

• Typing Speed Test

  Time a fixed localized sentence and calculate WPM, character accuracy, and elapsed time.

• Reaction Time Test

  Measure milliseconds from a randomly delayed visual signal until the user's tap.

• Click Speed Test

  Count clicks during an explicitly started five-second window and calculate CPS.

• Keyboard Tester

  Show up to 12 recent keydown events with key, code, modifiers, and repeat state in a focused test area.

• Mouse Tester

  Display mouse pointer position, buttons bitmask, pressure, and pointer type in a test area.

• Touchscreen Tester

  Use Pointer Events to display active contact position/pressure plus maximum simultaneous contacts and event count.

• Gamepad Tester

  Read the first connected pad's ID, mapping, buttons, and axes through Gamepad API, with haptics testing when exposed.

• Screen Information

  Display screen size, devicePixelRatio, viewport size, and color depth exposed by the current browser.

• On-screen Pixel Ruler

  Render a horizontal CSS-based ruler with labels from 0 to 200 in steps of 10.

• Microphone Tester

  Display live input level and peak from a selected microphone using Web Audio.

• Speaker Tester

  Play a 20–20000 Hz Web Audio test tone with adjustable volume, duration, and stereo pan.

• Webcam Tester

  Open a selected camera with getUserMedia and show a live preview plus negotiated track settings.

• Vibration Tester

  Request a user-defined millisecond vibration/pause pattern through the Web Vibration API when supported.

• Device Orientation Viewer

  Display DeviceOrientationEvent alpha, beta, and gamma angles live and request sensor access where the platform requires it.

• Random Wheel

  Choose one of 2–20 user entries with Web Crypto randomness and show it through an SVG wheel spin.

• Ladder Game

  Create a random bridge ladder for 2–10 players and the same number of results, then reveal the assignments.

• Bingo Card Generator

  Generate a 5×5 bingo card by taking five numbers from each standard 15-number B/I/N/G/O column range and track marked cells.

• Memory Match Game

  Play a memory-matching game with 4, 6, 8, or 10 symbol pairs shuffled in the browser.