Question 1

What is the best WordPress Polyfill plugin?

Accepted Answer

The most widely used polyfill plugins are ranked by active installations on PluginSift. You can sort by popularity, rating, or recent updates to find the best option for your needs. As of April 2026, there are 2 polyfill plugins available.

Question 2

How many WordPress Polyfill plugins are there?

Accepted Answer

As of April 2026, there are 2 WordPress polyfill plugins listed on PluginSift. This includes free, freemium, and premium options from various developers.

Question 3

Are there free Polyfill plugins for WordPress?

Accepted Answer

Yes, the majority of WordPress polyfill plugins offer a free version. Many also have premium tiers with advanced features. You can use the filter options above to browse only free plugins.

Question 4

How do I compare Polyfill plugins?

Accepted Answer

PluginSift lets you compare any two plugins side by side. Visit a plugin page and click "Compare", or use the Compare tool in the navigation. Comparison pages show ratings, active installations, support quality, update frequency, and more.

WordPress Polyfill Plugins

HTML5 Details Polyfill

Compatiblizr

Frequently Asked Questions