MDN
Resources for Developers, by Developers. Documenting web technologies, including CSS, HTML, and JavaScript, since 2005.
Stack Overflow
A public platform building the definitive collection of coding questions & answers.
W3Schools
Learn to code with the world's largest web developer site.
GTmetrix
GTmetrix tells you how your website performs, why it's slow, and how to optimize it.
Wave
WAVE is a suite of evaluation tools that helps authors make their web content more accessible to individuals with disabilities.
Website Audit
Tools for audit your website speed, performance, code quality and best practices, SEO etc.
Live Server
Create a live preview for the current project
Mithril Emmet
Prettier - Code formatter
Automatically format code
ESLint
Auto Close Tag
Automatically close HTML tags
Auto Rename Tag
Automatically update matching HTML tags
Color Highlight
Highlight colors in CSS code
Image preview
Display an image preview next to the code
Material Icon Theme
Monokai Pro
Resend
The best way to reach humans instead of spam folders. Deliver transactional and marketing emails at scale.
Mailchimp
Win new customers with the #1 email marketing and automations brand* that recommends ways to get more opens, clicks, and sales.
Can I use?
Up-to-date browser support tables for front-end technologies on desktop and mobile browsers.
Dynamic Websites vs Static Pages vs Single Page Apps