UseFull links For Developers

Chrome Extesntion for Front-end devs

whatFont
Colorpick Eyedropper
JSON Viewer
Responsive Web Design Tester
Wappalyzer
Colour Contract Checker
CSS Peeper
web Developer
Dark Reader
HTTPS Everywhere

DESIGN RESOURCE (UI & UX) FREE & FREEMIUM DESIGN RESOURCE

UI8 (https://ui8.net/)
GRAPHICS BURGER (https://graphicburger.com/)
MOUSECRAFTED (https://mousecrafted.com/)
UPLABS (https://uplabs.com/)
LSTORE GRAPHICS (https://ls.graphics/)
PAATTERNS (https://paaatterns.net/)

Design Resource

Storytale (https://storytale.io)
Feather Icons
Happy Hues (https://happyhues.co)
ls.graphics (https://ls/graphics/free-mockups)
UX Collective (https://uxdesign.cc)
Webflow (https://webslow.com)

Fonts

Google Fonts
The league of moveable type
Dafont
Fontsquirrel
Lost type
Open foundry
Fontsly

Illustartions

Humaaans (https://www.humaaans.com/)
UnDraw (https://undraw.co/)
Absurd illustations (https://absurd.design/)
Stubborn
whoosh! by ls.graphics
Charco by Karthk Srinivas
Ouch by icons8

Tools For Testing Different Design Variations

vwo (https://vwo.com/)
Optimizely (https://www.optimizely.com/)
Google Optimize (https://optimize.google.com/optimize/home/)
Adobe Target
freshmarketer
carzy Egg

Usefull links