ryanve

Access is a simple scalable plugin to control user access via the <a href="https://codex.wordpress.org/Taxonomies" rel="nofollow ugc">taxonomy API</a> and user <a href="https://codex.wordpress.org/Roles_and_Capabilities" rel="nofollow ugc">roles/capabilities</a>/IDs. It creates an Access taxonomy whose terms can be used on any post type to restrict access. Term slugs can match a role, capability, or user ID.
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<li><a href="https://github.com/ryanve/access" rel="nofollow ugc">Usage documentation</a></li>
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Access

Control content access via a taxonomy that accepts user IDs, roles, or capabilities.

irenem

A simple tool that allows you to switch between user accounts without the hassle of logging in/out. It allows you to view, review and do what yours does to your site.
<h4>Features</h4>
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Switch between user account and to guest user.
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Inherit all capabilities of the selected account, as if you are that very same user.
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Helpful for developers, designers, and site owners.
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User Switcher

This plugin helps me very much when I need to test custom user roles.

I like it

This is really helpful plugin for testing my user's issue with my site. When I have only admin account I can easily switch to a random users and reproduce their issue. Thanks for the great solution.

Perfect tool for testing users issue

A helper tool to help you switch between user account without logging in and out.

Access vs User Switcher