phpMyAdmin is a free and open source tool written in PHP intended to handle the administration of MySQL with the use of a web browser. It can perform various tasks such as creating, modifying or deleting databases, tables, fields or rows; executing SQL statements; or managing users and permissions.
MySQL database management
Import data from CSV and SQL
Export data to various formats: CSV, SQL, XML, PDF (via the TCPDF library), ISO/IEC 26300 – OpenDocument Text and Spreadsheet, Word, Excel, LaTeX and others
Administering multiple servers
Creating PDF graphics of the database layout
Creating complex queries using Query-by-Example (QBE)
Searching globally in a database or a subset of it
Transforming stored data into any format using a set of predefined functions, like displaying BLOB-data as image or download-link
Live charts to monitor MySQL server activity like connections, processes, CPU/Memory usage, etc.
Working with different operating systems.