Pixabay is a website that allows you to share and gain photos and images with people around the world. This website is extremely useful as (nearly) all the photos released is licensed as a CC0 image, which means you can copy and edit the image without acknowledging the contributor. So, if you want to edit the images you use, or are too lazy to write the sources of the images, use Pixabay. Pixabay is very easy to use as all you must do is go to its home page, search what you want, click the photo (and check the license) and download the photo. To make your experience even more convenient, you could enable safe search and not see inappropriate images by checking the box on the right side of the result page. There is also a Japanese version of the website and you can search in Japanese by changing your language. One thing you need to be careful about is that the images that come up on the first line of the page are professional photos of Shutterstock to finance Pixabay. The photos of Shutterstock cost money so unless you are willing to pay to get photos you could probably get free, you shouldn't use Shutterstock.

Sources

Pixabay. n.d. “FAQ.” Pixabay. Accessed February 22, 2018b. https://pixabay.com/en/service/faq/.

The video below explains how to use Pixabay too.