chive is an open source & web-based MySQL management application that is built with PHP.
It can achieve the most common tasks like creating, editing & executing:
  • databases
  • tables
  • indices, keys, triggers, views, routines
  • privileges management
  • import/export


The application has a built-in editor with syntax-highlighting which is nice when running complex queries & an easy-to-use interface that makes browsing fast.
chive has one major fallback (which may pr may not effect you): it only supports MySQL 5+.