capdl is a set of YouTube captions downloaders using an implimentation of libcapdl.
capdl.sh: a Bash capdl downloader.capdl_bookmarklet.js: a bookmarklet capdl downloader.
libcapdl is a library which finds the download URL for a given YouTube video's captions.
The capdl project (capdl and libcapdl implimentations) is public domain under the Creative Commons CC0 1.0 license. For more info, see LICENSE.txt.