Houdoku allows you to download chapters so that you can read them when you're offline.
To download chapters for a series, click the Download button at the top right of the page for that series in your library. You can also right click a specific chapter in the list to download. When a chapter has been downloaded, you will see a checkmark in the "DL" column of the chapter table.
You can change your download directory in
Custom Downloads Location.
The progress of the current download will be displayed in the status bar at the bottom of the
window. To view/manage the download queue, go to the
From this page, you can pause the active download or clear the download queue. Going to
My Downloads section at the top will display your downloaded chapters across all series,
and allow you to delete them individually.