
Loop Feedback
UserVoice
Invision
Usersnap
Hotjar
SurveyLab
Doorbell.io
Upvoty
Facebook Design
Design Principles
Facebook Design Resources
Atlassian Design
Facebook
Designer Mill
Colorbox.io
Freebiesbug
Loop Feedback
Facebook DesignUserVoice - UserVoice integrates easy-to-use feedback, helpdesk, and knowledge base management tools in one platform that empowers users to speak and companies to understand.
Design Principles - An open source repository of design principles and methods
Invision - Prototyping and collaboration for design teams
Facebook Design Resources - A collection of free resources made by designers at Facebook
Usersnap - Usersnap is a customer feedback software for SaaS companies that need to constantly improve and grow their products.
Atlassian Design - Design, develop, and deliver