Mockingbird : Mockingbird is an online tool that makes it easy for you to create, link together, preview, and share mockups of your website or application.
Ready for Rails 4? : Check easily whether a gem is ready for Rails 4 or not.
metaflop : Metaflop is an easy to use web application for modulating your own fonts. Metaflop uses Metafont, which allows you to easily customize a font within t...
Landing page optimization for your mocks and wireframes.
Fivesecondtest helps you fine tune your landing pages and calls
to action by analyzing the most prominent elements of your design.