techphernalia

This plugin helps your SEO by adding meta keywords tag to each page, post, archive (category, tag, date, day and year). 
Now it also allows you to specify common keywords to be included on every web page. Plugin from one of the best coder <a href="https://www.techphernalia.com/" rel="nofollow ugc">Durgesh Chaudhary</a>. 
For any support just leave your question at our <a href="https://www.techphernalia.com/meta-keywords-generator/" rel="nofollow ugc">Meta Keywords Generator</a> page.
Uses Title, Description, Categories, tags, Compulsary keywords (provided by you in setting) for keywords generation. Uses content after striping short codes and short tags for generation of description.
Reduces manual work of adding them manually.
Now more efficient by allowing you to add one time master keyword list.
A big Thanks to Omer Barlas for suggesting to change text box to textarea for better readability.

Meta Keywords Generator

Adds Meta keywords and Description to each and every page, post, archive.

mukeshjakhar888

The first complete free all in one SEO solution for WordPress websites, including home page, archive pages, single post page etc. you can also set custom keywords, social media links for your hole website. This plugin helps you in SEO by adding Meta keywords, Description, facebook twitter google plus meta tags to each and every page, post, archive. (category, tag, date, day and year). This plugin also allows you to specify common keywords to be included on every web page. Plugin from one of the best coder <a href="http://www.phpkida.com/mukesh-jakhar-wordpress-php-web-developer-and-designer/" rel="nofollow ugc">Mukesh Jakhar</a>. For any support just leave your question at our <a href="http://www.phpkida.com/swt-seo-helper/" rel="nofollow ugc">SWT SEO HELPER PLUGIN</a> page. 
Uses Title, Description, Categories, tags, Compulsory keywords (provided by you in setting) for keywords generation.

SWT SEO Helper

This is awesome free seo plugin, guys should be use once, very simple optimize on single setting page this is working great...

This is awesome free seo plugin, guys should be use once

SWT SEO Helper auto generating keywords, Adds Meta keywords and Description, facebook twitter google plus meta tags to each and every page, post, arch …

Meta Keywords Generator vs SWT SEO Helper