To be honest, I'm doing this as much for my own use and to make life a bit easier for my customers as we work through setups.
There are plenty of these already available on the web, but in my quick search, I didn't find one to do exactly what I wanted, so I wrote this one to use offline. For example, I frequently copy a storage adapter WWPN from IBM i DSPHDWRSC or STRSST to Brocade switches or DS8000/FlashSystems storage platforms to create zoning or host groups. The WWPN you get from IBM i is all uppercase with no colons, while the Brocade switches want to get lowercase with colons.
This tool will let you easily convert a WWN or list of WWNs to/from any combination of upper/lowercase or colons/no-colons. Bookmark the URL https://blog.vios4i.com/p/wwn-tool.html and use it whenever you need, or just come to the https:/blog.vios4i.com home page and use the permanent link on the right side of the screen, then stick around and read and comment on my latest blog post.
Download directly with: https://github.com/IBM/blog-vios4i/raw/main/src/wwpncvt.html Use Save As to get a local copy and run that without any internet connection.