audiolib.js is a powerful toolkit for audio written in JS. It ships with most of the common tools such as: Reverbs Comb/IIR/Biquad/All-Pass/Low-Pass/Band-Pass/High-Pass filters Delays Oscillators FFT and other analyzing tools Step sequencers Envelope controls Noise generators Samplers In addition, it hosts these tools in a comprehensive framework, that makes it simple to write a single effect and