Already build VPCs, Subnets, and SGs to convert into a CF Template

We have build two VPCs completely from scratch with all the nesseasry subsets, internet gateways, route tables, SGs , NACLs etc..and all is working well when we use them - all these were build and configured manually, now that we have it build is there a way that we can retrieve all these configurations from AWS CLI to see if we can build a CF template from an already configured infrastructure , are there any tools we could use ?

Thanks

Jorge