All imagery listed is free. Use a photo to spice up your project, reduce your stock photo costs, and even find your business a logo.
However, usage terms vary. Common restrictions on the imagery(if any): noncommercial use; required attribution; if altered, must be licensed the same as original.
‘CCO’ or ‘Public Domain’ images are either out of copyright or dedicated to the public. They are freely usable by the public for any purpose. Although these images do not require attribution, it is always awesome to show support to artists. 🙂
Pictures & Photos
Creative Common Image Search Engine: Usage terms vary.
Every Stock Photo: Free photo search engine. Usage terms vary.
Finna: Search Finland archives, libraries, and museums. This includes images. Each item has various usage terms.
Flickr – Commons: All flickr images/photos that are in the creative commons.
FreePhotos: Public Domain Photos. Around a 1,000 images from personal collections.
Gratisography: High resolution photos/images taken by Ryan Mcguire. Use for commercial and noncommercial alike.
Internet Archive: Free web, audio/sound, text/literature, software, and video/movies. Usage terms vary for everything.
Library of Congress Map Collection: Maps and history galore. Usage terms vary.
Morguefile: Commercial use allowed.
National Library of Scotland – Map Images: Noncommercial use only. Attribution Required.
New Old Stock: Collection of public domain images.
NYPL Digital Gallery: Over 800,000 images/photos from the New York Public Library, all digitized and provided within an easy to browse site. Item usage terms vary.
Open Photo: Photos under creative commons license.
Photo Pin: A site that helps you search for creative commons images/photos from flickr.com
Photo Rack: Photos/images neatly organized and for commercial/non commercial use.
Pick Up Image: Stock photos for both commercial and noncommercial usage.
Rgb Stock: Free stock photos/images with various usage rights; just read terms per item.
SplitShire: Photos/images that can be used for any project, commercial or not. Site is really awesome!
Stock Free Images: Stock photos/images with little to no restrictions.
StockVault: Images/photos for noncommercial and personal usage.
The British Library’s Flickr: Over 1 million images and photos! Usage terms vary.
The Collection Online: Over 400,000 images and art, licensed under Open Access for Scholarly Content.
The Walter Art Museum: Photos of art. Usage terms vary.
Unprofound: Photos and images. Can browse by colors. Can be used for commercial and noncommercial purposes.
U.S. Government Photos and Images: Most of the images/photos are in the public domain, if they are not the usage and license rights will be listed per item.
USGS Multimedia Gallery: Find USGS related images. All in the public domain unless other wise stated.
WellCome Images: Free images/photos, usage rights vary but are posted per item. Usage terms vary.
Wikimedia: You can find various media, including music and sounds. Usage terms vary.
Clipart & Icons
Icon: An image, symbol, picture, or other representation of an idea, concept, or object.
Antique Clipart offers the small versions of Victoria and Edwardian era clipart freely, while charging for larger files. This is a way for them to contribute to the public and make money to support themselves Scanning is a service, and they have every right to limit access to their personal digital copies. CC0
Fat Cow – Free Icons: A free icon pack, under creative commons.
Flat Icon: Over 50,000 vectors/icons for free, under Creative Commons Attribution 3.0 license.
Game Icons: Game icons under the Creative Commons license.
Human Pictogram 2.0: Human icons. Imagine the walking man icon for street signs, but in various situations. Some of the icons are quite comical – the person getting abducted by a UFO, for example. Japanese
Icon Monstr: Icons for use in any project, including commercial ones.
Icons Creator: Find icons that are customizable and free to use for any project, even commercially.
PNGify Me: With this site you can create/edit/download icons of all sorts. All are licensed under Creative Commons Attribution 4.0 International License.
Logo Instant: Free logos. License for logos not provided, but they state that the logos can be used for any project, check out their about section for more information.