ForeUI is a handy UI prototyping tool. It can rapidly create static or interactive, skinnable UI prototypes of your Web site or software. It features various UI themes (Wireframe, Windows, and Mac), interactive simulations that run in Web browsers, customized element creation, slide show and PDF exporting, and a rumple effect to suggest incompletion.
RedQueryBuilder fills the gap between a hand coded "quick search" and a full blown query language. A typical use is in an intranet Web application where experienced users need a quick ad-hoc way to find particular data. This means they don't have to use report frameworks or ask a techie. To use it in your app, you just need to drop in the JS, feed it the metadata for your database, then handle the change events to get the SQL and argument values.