Tools for Electronics Enthusiasts
53 toolsCalculators and simulators for electronics projects. Ohm's law, resistor color codes, PCB trace width, 555 timer circuits, LED calculations, and interactive circuit simulation.
Tone Generator
Generate precise audio tones, sweep frequencies, mix oscillators, play DTMF phone tones, export WAV. Web Audio API.
Ultrasonic Generator
Generate ultrasonic frequencies beyond human hearing. Up to 48 kHz with 96 kHz sample rate. Real-time spectrum analyzer.
Morse Code Generator
Convert text to Morse code with audio playback. Adjust speed and tone, download as MP3 or WAV.
Morse Code Decoder
Decode Morse code from audio — record from microphone or upload a file. Real-time analysis to text.
Alarm Sound Generator
Generate alarm sounds, notification tones, and sirens. 33 presets, custom synthesizer, multiple export formats.
Doorbell Sound Generator
Generate doorbell sounds, chimes, and melodies. 35 presets, custom synthesizer, melody composer, multiple export formats.
VR Headset Test
WebXR diagnostic suite for FOV, tracking, refresh rate, spatial audio and display dead pixels — runs inside your headset browser
VR Compatibility Test
Check WebXR support, GPU, CPU, RAM, sensors and bandwidth — then see which VR headsets match your hardware
ISO Extractor
Extract ISO files online with UDF and Joliet support. Stream 16GB+ images, preview files in-tree, verify SHA-256 in your browser.
ISO Creator
Build ISO files from a folder in your browser. Joliet long names, hybrid USB MBR, streamed 8GB+ output via File System Access.
BIN/CUE to ISO
Convert BIN/CUE to ISO online. Auto-detects MODE1/2 sector layouts, extracts CD-DA audio as WAV, parses multi-track cuesheets. In the browser.
Screw Gauge
Measure a screw on your calibrated screen, or print a true-to-size paper gauge — then read its diameter, thread pitch and length.
Thread Gauge
Measure ten threads on a calibrated screen to get the pitch, TPI and matching sizes. The 1:1 printable sheet adds pitch combs, radius arcs and a feeler table.
Drill Bit Gauge
Measure a drill bit on your calibrated screen, or print a true-to-size gauge — then read its metric and inch size.
O-Ring Sizer
Measure an O-ring on your calibrated screen, or print a true-to-size sizer — then read its inner diameter and cross-section.
Hex Key Gauge
Measure a hex key on your calibrated screen, or print a true-to-size gauge — then read its metric or SAE size.
Renovation Work Norms
Pick a job and see what it includes under the Russian state construction norms, how many man-hours it should take and how much material your volume needs.
Renovation cost estimate
Enter your rooms — wall, floor, ceiling areas and the skirting run are worked out for you. Tick the jobs, put in your own prices or the ones from the quote you were sent, and see the total next to the standard labor hours.
Nail Gauge
Measure a nail on your calibrated screen, or print a true-to-size gauge — then read its penny size, length and shank thickness.
Battery Identifier
Measure a battery on your calibrated screen, or print a true-to-size gauge — then read which battery it is.
Angle Finder
A digital inclinometer that reads tilt in degrees, percent, per-mille and roof pitch — plus a clinometer mode for the height of trees and buildings.
Online Ruler
Free online ruler in actual size. Calibrate to your screen and measure in cm, mm and inches — on screen or on a photo.
Online Protractor
Online protractor with transparent overlay and photo measurement — mm calibration, multi-angle, PNG/PDF/JSON export. Handy for builders, carpenters and students.
Bubble Level
Digital spirit level using your phone's sensors — 2D surface bubble, inclinometer, plumb line and camera AR with angle export.
