Sophia is a modern embeddable key-value database designed for a high load environment.

It has unique architecture that was created as a result of research and rethinking of primary algorithmic constraints, associated with a getting popular Log-file based data structures, such as LSM-tree. (see architecture)

It is very fast. (see benchmarks)
It is easy to use. (see documentation)

Implemented as a small C-written, BSD-licensed library.

Dmitry Simonenko