Responsinator - Designed to test responsive websites on different devices.
FlowMapp - FlowMapp is a UX planning tool for creating visual sitemaps and user flow.
SlideRule UX Design Path - Curriculum of Online Courses To Learn UX Design
Octopus.do - Build your website structure in real-time and rapidly share it to collaborate with your team or clients. Start prototyping websites or apps instantly.
BareMetrics - SaaS Analytics for Stripe
DYNO Mapper - Create Sitemaps with the DYNO Mapper Visual Sitemap Generator.