There are several clip-media websites that allow you to download free images for non-commercial usage. Many of these sites allow unrestricted commercial usage as long as any content is not redistributed or resold. A few though, do not allow commercial usage.
As you can see, the licensing terms differ from site to site. Therefore, make sure you read every disclaimer or agreement on a site before you download images. This is to ensure that no copyrights are being infringed. If any copyright info is not clear or evident, you can always email a contact address on the site to find out more. If there’s no contact info available on the site, it is best to not use any content from the site.
Some content on free sites may be low-resolution. Also, some of the free content may be the work of amateur photographers. However, this may not be true all the time. I've found some amazing content from professional photographers on many of these sites.
We also look at sources for textures, which are images designed to be used as a repeated pattern.
On this page, you'll find links to various sites that allow download of free images and textures.
Pixabay provides images that can be used in digital and printed format, for personal and commercial use.
The New York Public Library collection has thousands of public domains pictures available in high quality.
morgueFile is a public image reference archive that allows both private and commercial usage of images.
Free Images (earlier stock.xchng) contains thousands of free photos that you can use for both personal and commercial purposes.
Rgbstock has over 100,000 completely free stock photos that you can use in all types of projects.
FreePhotos is among the largest collections of photographs.
At Backgrounds Archive, you can download free tileable and desktop backgrounds and wallpapers in both widescreen and regular resolutions.
Free Images is a resource of photographic images for free use on websites and printed materials.
Pexels is a continuously updated resource of free images for both personal and commercial usage.
Bigfoto provides royalty-free images for non-commercial use.
The NSSDC Photo Gallery has space related images including photographs of planets, astronomical objects and space missions.
Dreamstime provides a selection of free images.
FreePhotoBank is a resource with plenty of free stock photos.
Public Domain Photos has around 5000 free photos.
Unsplash provides you with the images you can copy, modify, distribute and perform the work, even for commercial purposes.
picjumbo contains both free and premium images to download.
LittleVisuals requires that you sign up to get 7 hi-res images zipped up within your inbox every 7 days.
GoodFreePhotos has over 7000 public domain photos, images, clipart, pics and vectors.
New Old Stock specializes in vintage photos from the public archives, free known copyright restrictions.
Gratistography has free high-resolution pictures you can use on your personal and commercial projects.
Hassle Free Clip Art provides several free to use graphics.
Photo Communities & Resources
Mixkit curates some amazing content including pictures and videos, that can used free of charge.
You'll find over 800 tiled textures at the Ppted background archive (not free).
Textures.com (formerly CGTextures.com) has a huge collection of textures available.
High Quality Textures has downloadable textures for 3D builders and skinners in various categories.
Google Image Search is among the most comprehensive visual searches available online.