I’ve been looking for this tool for a few hours now. I know there is a web-based CatOS to Native IOS converter for the Cat 6500 on Cisco’s site. You paste in the CatOS and it converts the configuration to native IOS (with a list of non-translated commands at the bottom). The entire tool is web-based and doesn’t require you to run a script against your production switches. Cisco also released a software doing the same.
2. The Process
4. Online Tool
Note: Items 3 and 4 require CCO Account to Login and access.