MusicBrainz is a project that aims to create an open data music database that is similar to the freedb project.
License: Open Source
Discogs is primarily a marketplace and database for physical music collectors, offering a user-friendly interface and a strong community. MusicBrainz, on the other hand, is an open-source project focused on providing high-quality music metadata and collaboration, making it ideal for developers and those needing precise music information.