Smith Chart Matching Web App


Rex Frobenius

Use this handy Smith Chart web app to create matching networks. Easiest tool to use: drag elements right on the chart! Supports multiple frequencies, transmission line elements, etc. Note: please register for a free account for continued access to the Smith Chart app.  

New HTML 5 Version Now Available A new version of the popular Smith Chart app that does not require any plug-in has now replaced the older Java applet version.

Online Smith Chart course now available - right here on!

The older Java plug-in based version is still available here.

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Security problem fixed

Sorry about that. This was probably caused by switching the site to use secure HTTPS connections. The scripts were still being loaded over an unsecure connection, which is not allowed when the page is secure. I've updated the page so the scripts load over a secure connection and it should work now.