Profile and Permission Set Helper from Salesforce Labs help admin to easily convert existing Profiles permissions in your org to Permission Sets. Within a few clicks, you can clone all Permissions from a certain Profile to Permission Sets, which are ready to be assigned to new users in no time!
Once the app installed, select Profile and Permission Set Helper app, there will be only 1 tab called Converter, then select the profile that you want to convert into Permission Set.
Notes: this app is only work in Lightning.
The conversion process is very fast, only a few seconds, and it will create a new Permission Set as you named it. The existing profile will still be there and not touch.
Now, you can assign the permission set as per normal to users, and delete the profile when required.
Type: Managed Package; AppExchange
Publisher: Salesforce Labs
Blog last updated: 29 October 2018