Yes, the Satrang Mass Assign Permission app goes by its name to assign permissions to Apex Classes in bulk.

  • As you can see in the image, in which the user has selected a profile and classes,

  • The following table will be displayed after clicking the "Fetch Apex Class Permissions" button, showing the permissions of Apex Classes assigned to the selected profile. The user can edit it and save it to assign permissions to the respective profile.