As others have said, this used to be a great site. It has deteriorated over the last year and a bit with pop ups and so on.
It has gotten worse recently. I tried to use the service and it automatically tried to download unwanted software.
I will never use it again.
Used to be one of my favorite sites to convert videos from, and then a year ago it started getting different malware and virus popups when you convert a video. And now I can't even download videos with music in them, since back in October they had a copyright strike, so they just removed the ability to download videos with music in them. Very drastic ending for this once beloved site.
I used to like and use this site frequently. I use an adblocker, so I was never annoyed by ads, and I always unchecked the check box so I wouldn’t download any viruses or malware with my videos. However, within the past year, they seemed to get rid of the check box completely, and now, at least twice, when I clicked the download button, I have been redirected to a dangerous site while the video downloaded. The last time, my anti-virus software popped up saying it had blocked something, but I was still redirected to a page that said my computer had a virus and to call a phone number. I ended up having to force close my browser to get out of it. Although I think this used to be a safe site if precautions were taken, I no longer think it’s safe, and so will no longer be using it. I recommend that others stay away from it, too.
UPDATE: According to Google Safe Browsing (as of 26 June 2016), the website itself is safe, but "Some pages on this website send visitors to dangerous websites":
Es un sitio útil para descargar videos desde youtube en formatos mp3,mp4,avi,3gp...
EDIT: Últimamente ha decaído en mostrar Pop-ups y redireccionar a otros sitios con calificaciones muy negativas, corrijo valoración.
clipconverter.cc used to be a good website for downloading videos off of youtube. But recently there had been pop up ads for rogue AVs, Malware, Ransomeware, and etc. including there is a program when you download a video, but you can disable it being downloaded from un-checking the check box the deal comes from. Many browsers will not block the popup ads. The ads might download some malware or PUP onto your PC without you knowing. Some good programs to fight these are Malwarebytes Anti-malware and Malwarebytes anti-exploit (https://www.youtube.com/watch?v=PGLGyPuxP7c) Make sure to uncheck the check box and close the ads ASAP.
Use at your own discretion. The site does what you need it to for getting YouTube videos, but is only really safe when using an ad-blocker if clicking Download. So be warned, only use this if you have ad-block.
It's a good site, does what it says it will, and gives you a high quality file, however, after you click DOWNLOAD, you never know how many, or what sites the popups you get.
I've had 1 - 5 open, anything from 'health' sites selling crap, to fake antivirus warnings and wanting me to buy their 'service'
Clip Converter is a free online media conversion application, which allows you to convert and download YouTube URLs to formats like MP3,MP4,AAC,3GP...