Lets you disable automatic formatting like smart quotes and automatic paragraph creation, and use raw HTML/JS/CSS code in your posts without WordPress messing it up.
RawHTML will also add new checkboxes to the “Edit Post” screen that let you disable certain WP filters on a per-post basis. This way you can:
Disable wptexturize (the function that creates smart quotes and other typographic characters).
Disable automatic paragraph creation.
Disable image smilies.
Disable convert_chars (the function that converts ampersands to HTML entities and “fixes” some Unicode characters).
The free version only supports editing posts in the Text tab (called “HTML” in older WordPress versions). Get the Pro version if you want to be able to switch between Text and the Visual editor without WordPress messing up your content.
To prevent a part of your post or page from being filtered by WordPress, switch to the Text/HTML editor and wrap it in
<!--raw-->...<!--/raw--> tags. These two versions work exactly the same, except that the latter won’t be visible to your visitors even if you deactivate Raw HTML.
[raw] This is a "test"! [/raw]
In this case, the tags will prevent WordPress from inserting paragraph breaks between “This”, “is” and “a “test””, as well as ensure that the double quotes arround “test” are not converted to typographic (curly) quotes.
To avoid problems, only edit posts that contain your custom code in Text/HTML mode. If you’d like to be able to also use the Visual editor, get the Pro version. It will make the code betwen [raw] tags appear as a read-only placeholder when viewed in Visual mode, ensuring WordPress doesn’t change it.
Just installed this and has no effect when using the WordPress Code Editor, items between the raw tags still get reformatted by wordpress.