Since I first dealt with SANs and WWNs years ago, I thought there should be a more practical way to edit WWNs, most of the time to add colons between characters. I could not find an online tool to do this. One can and possibly does use a little more advanced text editor to do block editing or some custom scripting to do this task. I wanted to make it easier and also share with others so I decided to build a php tool here. With adding some features and extending the idea to MACs, this came out:
I hope it helps other system administrators.