Usage gregcw11 / CHDL Join GitHub today GitHub is home to over 36 million developers working together to host and review code, manage projects, and build CHDL is a Chrome Extension that attempts to download full (unblurred) documents from Course Hero. You must be on a document page on CourseHero to use the extension from either the toolbar or the right-click context menu, and you must be signed in on the … Posted: (1 week ago) CHDL is a Chrome Extension that attempts to download full ( unblurred) documents from Course Hero. Download Course Hero Files With CHDL Extension (My Favorite) 1 The Chrome extension used to download files from Course Hero is called CHDL, which can be downloaded and used for free from GitHub. Unblur Course Hero Chrome extension 2021 comcourse hero unblur extension 924 Course Detail Course.