Weblate is a free web-based translation management system.

Gammu command line utility provides access to wide range of phone features, however support level differs from phone to phone and you might want to check Gammu Phone Database for user experiences with various phones. Generally following features are supported.

phpMyAdmin is a free software tool written in PHP intended to handle the administration of MySQL over the World Wide Web. phpMyAdmin supports a wide range of operations with MySQL. The most frequently used operations are supported by the user interface (managing databases, tables, fields, relations, indexes, users, permissions, etc), while you still have the ability to directly execute any SQL statement.