All of the websites below provide video footage that is free to use. Some footage is licensed through creative commons, some is hosted on databases that use licenses similar to creative commons, and some is in the public domain. Always look at licensing information to determine how to properly attribute your sources, if footage can be used for commercial purposes, and whether adaptations or derivatives are allowed.
This guide is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.