YunoHost : YunoHost is a server operating system aiming to make self-hosting accessible to everyone.
Pattern Tap : Organized Web Design Collection of User Interfaces for Inspiration and Ideas. The CSS Gallery Alternative
Origami Studio : Origami is a free tool for designing modern user interfaces.
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.
vicnum : A flexible web app showing vulnerabilities such as cross site scripting, sql injections, and session management issues. Helpful to IT auditors honing ...
Wireframing, mockups and prototyping for websites and applications