Here are some cool websites and online tools offering you free header images. You can use them for creating banner, header for your website, presentations, blogs ...
1. Free Web Headers.com
just browse through different categories and download ready to use image for your header.
2. Banner Fotor
create your own design, a quick editor for good headers in couple of minutes
3. Freepik
a good gallery not only for banners, headers....
4. Bannerfans
again a good quick editor to design banner of your choice.
5. Free webpage headers
one more gallery to choose your ready to use header image....
