Pixabay
Resource libraryFree images, videos, music and sound effects under the Pixabay content licence; some uses are restricted.
Free, with trade-offsWebFree alternatives to Epidemic Sound3 alternatives
Free alternatives to Epidemic Sound, compared on what really matters: what is free, the licence, whether an account is required and the platforms.
Incompetech
Resource libraryRoyalty-free music by Kevin MacLeod under Creative Commons Attribution; a paid licence removes the credit requirement.
Free, with trade-offsWeb
Free Music Archive
Resource libraryLibrary of free music under Creative Commons and similar licences; conditions vary by track (attribution, non-commercial).
Free, with trade-offsWeb