Will I get copyright if I use pexels.com pictures or videos in YouTube videos?

Question

Pexels.com is one of most famous website wherein we can download pictures and use in our projects. Images are free to use. No copyright issues. All images are copyright-free images.

Remember:

1.  All photos and videos on Pexels are free to use.
2.  Attribution is not required. Giving credit to the photographer or Pexels is not necessary but always appreciated.
3.  You can modify the photos and videos from Pexels. Be creative and edit them as you like.

Must Remember:

1. Identifiable people may not appear in a bad light or in a way that is offensive. This includes, for example, portraying people pictured engaging in criminal activities, suffering from a medical ailment, or in a pornographic context. 
2. Don't sell unaltered copies of a photo or video, e.g. as a poster, print or on a physical product without modifying it first.
3. Don't imply endorsement of your product by people or brands on the imagery.
4. Don't redistribute or sell the photos and videos on other stock photo or wallpaper platforms.

So it is always recommended to use pictures/videos wisely. 

Read full details:

• Pexels License
• Pexels Terms of Service

Answer 1

As per pexels.com terms and conditions:

Contents on pexels.com are licensed under the Creative Commons Zero (CC0) license ("CC0 Content").  The CC0 Content on the Service is marked with the reference "CC0 License" next to the respective picture / content made available for download.

This means that the authors of the of work have dedicated the work to the public domain. 

Subject to the CC0 License Terms the CC0 Content can be used for all personal and commercial purposes without attributing the author/ content owner of the CC0 Content or Pexels.

You are also not required to publicly credit the photographer, but it’s still a nice thing to do.