免費圖庫

https://www.flickr.com/groups/publicdomain/pool/

https://www.flickr.com/photos/britishlibrary/

http://www.publicdomainpictures.net/browse-category.php?c=seasons&s=17

(注意：這個網站的Professional Stock Photos from $1下方圖片是要收費的)

http://www.public-domain-image.com/

(分類在左邊，中間會有廣告)

http://cc0.wfublog.com/  (搜尋用)

http://librestock.com/

https://openclipart.org/

https://visualhunt.com/

http://www.peakpx.com/

https://pixabay.com/

http://www.toicon.com/

https://www.svgimages.com/

https://stocksnap.io/

https://undraw.co/ (SVG手繪)