This software builds on youtu`be-dl, and much gratitude is extended to them for their hard work released under a libre license.
This program as a whole is released under the GPLv3+ (a copy of the GPLv3 can be found in COPYING.txt).

For various reasons, youtube-dl removes some functionality from its parent. Any known such 'regressions' are documented here.
*In order to guarantee complete liberty, this software does not use its upstream's built-in JS and SWF interpreters. This prevents access to some videos on YouTube, as they use (unnecessary) obfuscated URLs.
*Support for Microsoft Windows and Mac OS X is no longer available, as there is no conceivable reason to provide it (the slight privacy/security concerns with our parent are irrelevant compared to the OS).
*Due to the use of a non-free client side authentication algorithm, login to iQiyi is not available.