Lightweight - Less than 100 KB, portable with only one file
Easy - Extremely easy to learn and use, friendly construction
Powerful - Supports various common and complex SQL queries, data mapping, and prevent SQL injection
Compatible - Supports all SQL databases, including MySQL, MSSQL, SQLite, MariaDB, PostgreSQL, Sybase, Oracle and more
Friendly - Works well with every PHP frameworks, like Laravel, Codeigniter, Yii, Slim, and framework which supports singleton extension or composer
Free - Under MIT license, you can use it anywhere whatever you want
Medoo is under the MIT license.