DataGrig

Web-based database manager

Features

URL, URL, URL... you can share any state of the app with your colleagues, so he will see the same state as you. Table, filter, query etc. Also you can use boookmarks in your browser to save a state.
Go through foreign keys. DataGrig analyzes structure of DB and links foreign key column with referenced table so you can jump from one table to another by clicking on reference in table.
Easy join filters. You can use filter like company.ceo.name='John'
Compare database DataGrig compares database and creates report that contains all differences between two databases. You can even compare PostgreSQL and MySQL databases.
Link aliases. You can specify link aliases in comment for foreign key column.
REST API for your DB. You can use DataGrig as REST API for your existing database.