What is Storage engine?

The storage engine is one of the 3 core subsystems in a traditional database management system. The other 2 are the query engine and the server layer (managing ACL, client connections/sessions). The storage engine would expose an API for other subsystems (mainly the query engine) to interact with it. Both InnoDB, MyISAM are a storage engine of MySQL. Storage engine can also be a standalone component, in which case, it's used as a library (e.g. Berkeley DB).

Safer and faster database change and version control for DBAs and Developers

Bytebase is an open source, web-based database schema change and version control tool for teams. It offers a web-based collaboration workspace to help DBAs and Developers manage the lifecycle of application database schemas.