Peter Westwood

Makes that admin bar always visible even for logged out users
Adds a login button when logged out, registration button if registration is enabeld and the shortlink also displays when available.

Logged Out Admin Bar

Makes that admin bar always visible even for logged out users

Brian Alexander

Adds the current page’s template name to the admin bar.
Because this plugin reveals potentially sensitive information about the active theme, it is recommended for development environments only, and should not be enabled on a production site.

What Template

Adds the current page's template name to the admin bar.

Logged Out Admin Bar vs What Template