How to Download YouTube Videos : 

Hours of footage is uploaded to YouTube every single second. What if you want to download it? In some circles, that's considered a big no-no, but you have your reasons, right? Here's how.

There are billions of hours of video on YouTube. Literally. And that's hardly the most astounding statistic about the site, which has been the go-to destination for uploading and watching video since 2005. That said, sometimes, you really want or need to have one of those videos on your own computer or phone. But when the topic of downloading YouTube videos comes up, there's a side subject that must be broached: Is it legal? On the copyright front, as long as you're downloading a video for your own personal offline use, you're probably okay. It's more black and white when you consider Google's terms of service for YouTube, which reads: "You are not allowed to...access, reproduce, download, distribute, transmit, broadcast, display, sell, license, alter, modify or otherwise use any part of the Service or any Content except: (a) as expressly authorized by the Service; or (b) with prior written permission from YouTube and, if applicable, the respective rights holders." Watching YouTube videos offline through unofficial channels takes money from Google and video creators. There's a reason YouTube runs ads: people make a living this way. So, obviously, stealing video from YouTube is a big no-no. If you want to share a video, YouTube and most other video sites make it easy, from embedding to emailing to sharing via social networks. You simply do not need to download a video most of the time. However, you have your reasons. If you must download a YouTube video—absolutely need to, just for yourself, and not for dissemination, and not to be a total douche-nozzle—here's how. Note: This story is updated frequently as the tools involved change regularly. Some of those changes are not always pleasant, such as software so full of "extras" it gets flagged as malware by antivirus tools. The same goes for the helper websites—a change in a site's ad network can also create issues with malware. To prevent this from becoming a laundry list of programs and sites that can download YouTube videos, we came up with a few rules for inclusion. Services must: Support Work with top three video sites: Download Output to MP3 for audioHave an interface that Not collect your personal dataNot contain malware The programs, services, and sites in this story are all free of spam/virus/problems as of this writing, but caveat emptor. Big time. Especially if you're not really emptor-ing.