This free tool lets is made by Blue Canvas and offered to the Salesforce Community.
It lets you compare and deploy Profiles, Permission Sets & FLS between any two Salesforce orgs.

To get started, connect a source and target org from the above menu.

More Salesforce Deployment Tools (Metadata; CPQ etc.)

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Want to deploy Objects and Fields together with Profiles and Permissions?

Same user point-and-click workflow. Deploy Metadata and Permissions at the same time. Free Trial!