Badger vs LevelDB: What are the differences?
Developers describe Badger as "A new way of registering and managing your domains". Domain management you'll enjoy Domains effectively drive the entire internet, shouldn't they be easier to manage? We thought so, and thus, Badger was born! You shouldn't have to auction off your house and sacrifice your first born to transfer domains, you should be able to press a button that says "Transfer Domain" and be done with it. That is our philosophy, and we think you will appreciate it.
Stop letting domain registrars badger you, and start using... Badger!. On the other hand, LevelDB is detailed as "*An open-source on-disk key-value store *". It is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values. It has been ported to a variety of Unix-based systems, macOS, Windows, and Android.
Badger and LevelDB are primarily classified as "Domain Registration" and "Databases" tools respectively.
LevelDB is an open source tool with 18.3K GitHub stars and 4.32K GitHub forks. Here's a link to LevelDB's open source repository on GitHub.