It natively supports MySQL, MariaDB, PostgreSQL, SQLite, MS SQL, Oracle, Elasticsearch and MongoDB.

[2] Adminer is distributed under Apache license (or GPL v2) in a form of a single PHP file (around 470 KiB in size).

Its author is Jakub Vrána who started to develop this tool as a light-weight alternative to phpMyAdmin, in July 2007.

[3] Also, first webhosting providers started to include Adminer as MySQL managing tool into their portfolio of services.

[4] The project's priorities, according to its author, are (in this order): safety, user-friendliness, performance, functionality, and size.