With this update comes some features! The application now supports five band resistors, and can even convert between four and five band. It now works offline, thanks to ApplicationCache support. I would have liked to use the Service Worker API, but it’s not supported in most mobile browsers yet. The final new feature, and a personal favorite, is the ability to tell you the nearest real-world resistor value comparable to the one you entered.
I believe that this tool is now one of the more feature complete resistor calculators out there.