Show a User's Capabilities on Their Profile
Adds a collapsible list of everything a user is allowed to do to the user edit screen, which helps when checking what a role or plugin has granted.
Snippet Library
Users snippets for WordPress
Snippets for user accounts, roles and profiles: extra profile fields, new columns in the users list, last-login tracking and tighter control of what each role can do. Handy for membership sites, client sites and teams with many authors.