Anton

ContentProtector is a lightweight and flexible plugin that allows you to protect your WordPress content with passwords. You can protect an entire post or page, or just a specific portion of the content.
<h3>Features</h3>
<ul>
<li>Global Protection: Set a global password for all posts or pages.</li>
<li>Partial Content Protection: Use a shortcode to protect only a specific part of your content.</li>
<li>Customizable: Easy to set up with a clean and intuitive admin interface.</li>
<li>Secure: Uses WordPress Nonces and cookies for secure password handling.</li>
</ul>
<h3>How It Works</h3>
<ol>
<li>Use the shortcode <code>[cpwp_protect password="your_password"]</code> to protect an entire post or page.</li>
<li>Use <code>[cpwp_protect_content password="your_password"]</code> to protect only a portion of your content.</li>
</ol>
Example for partial content protection: 
 `html 
[cpwp_protect_content password=”pass”] 
This content is protected by a password. Enter the password to view it. 
[/cpwp_protect_content]

ContentProtector – password protect your page, post or text

Protect your content with passwords using easy-to-use shortcodes. Supports both global protection and partial content protection.

NUCUTA

‘Nucuta Password Protect’ is a security plugin which password protects wordpress websites. Requires PHP 5.6.30 or Above.
The plugin uses a custom password, and therefore it’s completely independant from default wordpress password uses to access to the admin area of the site. Users can be restricted to access the site either based on their user group or altogether.
The available user groups are “editor”, “author”, “contributor”, “subscriber”. if a particular group is excluded from protecting from the custom password, users belong to that group won’t be asked the password. Clicking on the log off button logs off from the entire website, meaning the user has to enter the password to access the site again. By default, all users (both guests and registered logged in users) are required to enter the password before accessing the site, but by configuring, logged in users can be excluded. The plugins blocks not only visitors, but also bots, spiders, and all kind of crawlers.
Custom message can be set for both logged in/non-logged in users, A separate login page is provided to login purpose. Password is salted before storing in the database, and therefore security is top notch. The full documentation, and how to use guide can be found at this location. <a href="https://nucuta.com/how-to-password-protect-wordpress-site/" rel="nofollow ugc">Documentation, Help and Tutorial</a>

Nucuta Password Protect

works even on php 7

Secure your wordpress site with a password. Useful for private blogs.

ContentProtector – password protect your page, post or text vs Nucuta Password Protect