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This software allows for the design of various electronic filters using resistors, capacitors, and op amps. It offers Butterworth, Chebyshev, Elliptic, and Bessel approximations up to order 20, with lowpass, highpass, bandpass, and bandstop settings, and provides multiple circuit options.

This software enables users to easily toggle between printers via tray popup menu. Not only can users quickly select a new active printer, but they're also able to cancel print jobs for any printer with a simple mouse click.

EscapeClose is a free utility that lets you close or minimize the current window easily by pressing the Esc key. Ideal for multitasking with multiple folders and files open.