Adminer is a lightweight database management tool written in PHP. It allows users to manage databases easily through a web interface, supporting various database systems like MySQL, PostgreSQL, and SQLite. Adminer provides features such as executing SQL queries, managing tables, and importing or exporting data. One of the key advantages of Adminer is its simplicity and ease of use. Unlike more complex tools, it is a single-file application, making it easy to deploy and access. Adminer is often favored by developers and database administrators for quick database management tasks without the need for extensive setup.