Retcon adds a collection of powerful Twig filters for modifying HTML.

Here are some of the things Retcon can do:

Add, remove, modify or rename attributes for multiple dom nodes matching the given selector(s) (for example, p:first-child, img, span.foobar etc)
Remove DOM nodes by selector (e.g. remove all span tags)
Remove everything but given selectors (e.g. remove everything except img tags)
Transform inline images (it even uses Imager, if installed)
Add srcset or lazyloading to inline images (for example, images embedded in Redactor fields)
Inject strings or HTML content
Change tag names for given selectors (e.g. change all occurrences of <h1> to <h2>)

Check out the Wiki for complete docs and examples.

Retcon

Version 3.0.0