The main purpose of wallabag is to save web articles. You have many ways to do it. If you think that the article is wrong displayed, you can read this documentation.
On the Howto page, you have a Bookmarklet tab. Drag and drop the
bag it! link to your bookmarks bar of your browser.
Now, each time you're reading an article on the web and you want to save
it, click on the bag it! link in your bookmarks bar. The article is
saved.
In the top bar of your screen, you have 3 icons. With the first one, a plus sign, you can easily save a new article.
Click on it to display a new field, paste the article URL inside and
press your Return key. The article is saved.
You can download the Firefox addon here.
You can download the Chrome addon here.
You can download the Android application here or on F-Droid.
You can downlaod the Windows Phone application here.