Recordings stay in this tab — download to keep them. Mic access is required.
Play any frequency from 1 Hz to 22 kHz, pick a waveform, run a sweep and see the wave live.
Trim to exact times with fades, resample, fold to mono or stereo, and export a real WAV file.
Radix-2 FFT of any audio file with band energies, spectral centroid and a peak-hold readout.
Work out the real file size of an audio file at any bitrate, sample rate or channel count.
Build linear and radial gradients, copy the CSS.
Layer shadows visually and copy the CSS.
Pull a palette out of any image you drop in.
Resize an image to every favicon size and zip it.
