Responsiegrapher is a Dutch program by S.Raaijmakers to create your own filter-responses using the Park-McClellan algorithm. It is freeware under the GNU Public License.

Click here to download Responsiegrapher V1.0 Dutch

Here are some pictures demonstrating it's use:

Input box for various filter-parameters.

Here is a drawing of the impuls-response of the selected filter.

Here we have a frequency response for the selected filter. You can also save the drawn data if you like.