Please use Columnate instead! It replaces McReadability.

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An article before and after using McReadability

McReadability is a multi-column version of Arc90's Readability bookmarklet. The original Readability is now defunct, but you can still use this version. McReadability formats the text in constant-height columns. You scroll horizontally. Choose your settings and drag the McReadbility link below to your browser's toolbar.

Choose a Style:
Choose a Font Size:
Choose a Column Width:

Drag this link to your browser's bookmark toolbar:


Alternatively, for mobile browsers where dragging is difficult: copy the link code below, bookmark this page, edit the bookmark, and paste the code in place of the bookmark's original URL.

Now whenever you are reading a long article, click your McReadability bookmarklet to reformat the page for easy and consistent reading.