Browserling
Try for free now! Cross browser test your websites online in all web browsers – Internet Explorer, Edge, Chrome, Safari, Firefox, and Opera.
Marker.io
Collect client feedback and report bugs into Jira, Trello, Asana, Github directly from your site with screenshots, annotations, console logs, and more.
UX Speed Calculator
Performance Budget Calculator
A free online tool to easily calculate performance budgets for your projects.
UITest
Test your website in more than 80 web-based & free tools.
Source{d}
The Data Platform for your Software Development Life Cycle
Chrome Platform Status
Monkey Test It
Primate powered algorithms that scan your site for common bugs and SEO mistakes.
ngrok
Secure introspectable tunnels to localhost.