WordPress is arguably the best Web publishing platform in existence. Powering millions of websites WordPress built a strong community of passionate followers and geeks who constantly improve WP experience by releasing various plugins which bring different functionality to websites.
Here, I have compiled a list of some useful free cool plugins for wordpress users. Don’t worry though, you don’t have to spend all day sifting through this massive catalog of great plugins – we’ve done it for you! Read on to see which WordPress plugins are our favorites.
If you like this effort then don’t forget to take a look on other articles: Elegant Premium Boutique Themes, Free Forms Widgets for WordPress, Amazing CSS Editing Tools and Best Free Photoshop Extensions.
1. WP-Members
WP-Members is a plugin to make your WordPress blog a membership driven site. Perfect for newsletters, premium content sites, and more!

2. Starbox
While search engines and other software that read your site care about files like robots.txt, you need Human readers to actually engage with your content and fall in love with it.

3. Anti-spam by CleanTalk
The plugin is WordPress MultiUser (WPMU or WordPress network) compatible. Each blog in multisite environment has individual anitspam options for spam bots protection.

4. User Switching
This plugin allows you to quickly swap between user accounts in WordPress at the click of a button. You’ll be instantly logged out and logged in as your desired user.

5. Recently Registered
Add a sortable column to the users list on Single Site WordPress to show registration date.

6. Edit Author Slug
This plugin allows an Admin to change the author slug (a.k.a. – nicename), without having to actually enter the database.

7. Amr Users
User listings, member directories, search, filter, export. Digs deep into data created by other plugins to produce unified user listings.

8. Connections Business Directory
Connections is a simple to use directory manager which can be used to create an addressbook, business directory, staff directory or church directory.

9. NoSpamNX
To protect your Blog from automated spambots, this plugin adds invisible formfields to your comment form.

10. User Meta
WordPress user management plugin. Custom user profile,registration with extra fields. Custom Login, Import users from csv and many more.

11. Wordfence Security
Wordfence Security is a free enterprise class security plugin that includes a firewall, virus scanning, real-time traffic with geolocation and more.

12. BulletProof Security
WordPress Website Security Protection: BulletProof Security protects your WordPress website against XSS, RFI, CRLF, CSRF, Base64, Code Injection and SQL Injection…

13. User Meta Manager
Add, edit, or delete user meta data with this handy plugin. Easily restrict access or insert user meta data into posts or pages.

14. Email Users
A plugin for WordPress which allows you to send an email to the registered blog users. Users can send personal emails to each other.

15. User Submitted Posts
Adds a simple form via template tag or shortcode that enables your visitors to submit posts. User-submitted posts optionally include tags, categories, post titles, and more.
