Five resonators on one page: an LC tank, an RC time constant, a simple pendulum, a mass on a spring, and an air column with either one open end or two. Pick the harmonic number for the air column and both end conditions are shown side by side, using v = 343 m/s unless you change it. Every result prints the substitution.
Work out the real file size of an audio file at any bitrate, sample rate or channel count.
Translate text to Morse and back, then play the symbols as real tones through Web Audio.
Sound pressure level, intensity addition of independent sources, and inverse-distance falloff, with the arithmetic shown.
Read text aloud with the voices on your device.
SHA-256, SHA-384 and SHA-512 via the Web Crypto API.
Unix timestamps to dates and back, live in both directions.
Convert numbers between bases with a live bit view.
Convert colours three ways with a live preview.
