FIR filter design by the Fourier transform method - Signal Processing Stack Exchange
TFilter, the free online FIR filter design tool - Free online IIR Filter Design Tool, Filter Testbench, FFT library and scripting environment at http://almafa.org/docs/iir.html. For more information visit http://almafa.org/. | Facebook
FIR Filter Design Software for Loudspeakers. FIR + IIR. - ECLIPSE AUDIO
FIR Filter tools
WinFilter
Introduction to Filter Designer - MATLAB & Simulink Example
The 1-D FIR filter interface (see online version for colours) | Download Scientific Diagram
DSP for FPGA: Simple FIR Filter in Verilog - Hackster.io