Mr. Filter

Analog Active Filter Design assistant

Mr. Filter is a graphical analog active filter design assistant. It helps the user design active filters, from specification through synthesis. Electrical engineers, electronics hobbyists, and students will find that it greatly simplifies the process of filter design. Version 0.2.1 includes the following features:

  • Low-pass and high-pass filter shapes
  • Butterworth, Chebyshev Type I, and Bessel functions
  • Sallen-Key circuit topologies
  • Simulation with Gnucap or Ngspice

Download: mrfilter-0.2.1.tar.gz (Apr 25, 2010)


Project Page

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License: Mr. Filter is licensed under the GNU General Public License, version 3. It comes with ABSOLUTELY NO WARRANTY.

Author: Alan Somers (Remove the hat). But please direct questions and comments to

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