Heurix.io - Heurix is a free heuristic evaluation tool that helps you work out how to improve your website.
DevDojo - Dev tools and resources for building awesome stuff
Heurio - Do website reviews faster. Heurio eliminates the administration process and lets you focus on creating value in a collaborative and user-friendly way. Perfect for heuristic evaluation, design and development review, bug report, QA testing and more.
UXsniff - Track user behavior on your website and improve conversions with UXsniff: the user experience watchdog that looks out for you.
UX Companion - A handy glossary of UX theories, tools and principles (iOS)
UX Recipe - Checklist to discover your next UX project tools/techniques