The screenshot you show comes from [WWW SQL Designer](https://code.google.com/p/wwwsqldesigner/): - free and open source (New BSD License) - [online demo](http://ondras.zarovi.cz/sql/demo/) - retrieve (import) schema from existing database. - cross-platform (web application) Description from the website: > This tool allows you to draw and create database schemas (E-R > diagrams) directly in browser, without the need for any external > programs (flash). You only need JavaScript enabled. The Designer works > perfectly in Mozillas (Firefox, Seamonkey), Internet Explorers (6, 7, > 8), Safari and Operas. Konqueror works, but the experience is limited. > > Many database features are supported, such as keys, foreign key > constraints, comments and indexes. You can either save your design > (for further loading & modifications), print it or export as SQL > script. It is possible to retrieve (import) schema from existing > database.