The RIPE NCC has run out of IPv4 Addresses

It’s no surprise for network operators.

Flowy

A JavaScript library to create pretty flowcharts with ease.

Full Google Mail in a clean room browser

A new browser engine reached another milestone.

Beginner JavaScript

Online course to learn modern JavaScript from scratch.

Microsoft has turned Outlook into a Progressive Web App

You can now install Outlook.com as an app.

Advent of Code 2019

An Advent calendar of small programming puzzles.

Making a Better Custom Select Element

Let’s make an awesome custom select input.

Web Development Advent Calendars for 2019 | Adrian Roselli

A list of advent calendars covering web-related topics.

Dealing with Ads in 2020

Let’s find ways to decrease the harm of ads on webpages.

The ugly truth about optimising beautiful images

Good performance is about more than reducing bytes.

Twelve Days of Front End Testing

Numerous ways to improve the quality of frontend code.

Browser Default Styles

Get the default CSS of elements from all major rendering engines.

looop.dev

Creative coding tool for quick prototyping of Canvas/WebGL.

Firefox 71: A year-end arrival

CSS subgrid, column-span, Promise.allSettled, and more.

Introducing the new Search Console messages

Now they are easily accessible and more actionable.

runpkg

Explore npm packages within the browser.

Do's and don'ts of implementing a hamburger menu

How you can avoid the most common errors.

“Programmers spend far too much time worrying about whether their stack will scale up, and far too little addressing the real danger of whether it can scale down.”

Web Components update: more time to upgrade to v1 APIs

What you need to know if you use the v0 APIs.

What's New In DevTools (Chrome 80)

The latest release brings many improvements for web developers.

World Wide Web Consortium (W3C) brings a new language to the Web

WebAssembly follows HTML, CSS and JavaScript.

Firefox 71: First Out of the Gate With Subgrid

Big deals in Firefox’s latest release.

Subgrid

How CSS Subgrid works, and some use-cases it solves.

Cookie Status

Let’s track protection mechanisms implemented by browsers.

Calculating Color

Dynamic color theming with pure CSS.

5 CSS Predictions For 2020

What you can expect in the near future.

CSS: An Art, a Science, a Nightmare

Everything you should know.

Say Hello to Template Universe and Goodbye to Project Setup

What’s new in CodeSandbox.

Six Web Performance Technologies to Watch in 2020

Don’t bet on 5G and HTTP/3 to make things faster.

Motion Paths: Past, Present and Future

A look GSAP3 and the upcoming CSS motion path module.

Beautiful Scrolling Experiences, Without Libraries

Opportunities of the CSS Scroll Snap specification.

Clean CSS: rambling edition

Rules and principles to create clean and maintainable CSS.

New in Chrome 79

Maskable icons, WebXR Device API, and more.

Preventing Tracking Prevention Tracking

Apple enhances Safari’s Intelligent Tracking Prevention system.

Electron joins the OpenJS Foundation

What it means for developers.

Dark Mode Favicons

What you can already do in Chrome and Safari.

Using CSS custom properties to reduce the size of your CSS

Code optimization with CSS variables.

Z’s Still Not Dead Baby, Z’s Still Not Dead

Five CSS properties to surpass flat design.

Why CSS HSL Colors are Better

With the power of CSS variables.

The future is now, so what about tomorrow?

What we ca do to make digital accessibility easier.

Why 'details' is Not an Accordion

It looks like HTML needs a new set of accessible controls.

W3C Recommends CSS Writing Modes to support International writing modes

Now an official web standard.

JavaScript Visualized: the JavaScript Engine

How the engine handles our written code.

Hex Guess!

Guess the background color hex.

The Origin Story of Container Queries

How long has this idea been kicking around?

7 Uses for CSS Custom Properties

Ways to make your code more efficient and maintainable.

Web NFC reaches a key milestone

It is coming soon, you can already try it.

Scotch.io is joining DigitalOcean

Get ready for web development tutorials without paywalls.

No Code is New Programming

What developers can expect from the ‘no-code’ movement.

Request collapsing

The hidden magic that invisibly speeds up the web.

Sheety

Turn your Google Sheet into a fully RESTful API.

V8 release v8.0

What’s next for Google’s JavaScript and Web Assembly engine.

The State of JavaScript 2019

Latest survey results on popular JavaScript technologies.

Treo

Monitor your website performance and compare it with competitors.

Threading the web with module workers

A new mode for web workers is shipping in Chrome 80.

Speed tooling evolutions

Highlights from Chrome Developer Summit 2019.

Indexing your offline-capable pages with the Content Indexing API

Let’s tell browsers which pages work offline.

Encoding Animated GIFs Into Pure CSS

100% CSS video encoding.

Next-generation web styling

Some of the exciting features in modern CSS.

Pixels vs. Relative Units in CSS

Why it’s still a big deal in modern browsers.

3 underused CSS features to learn for 2020

Useful tools for various jobs in CSS.

Super Pseudo

An entire web page built without HTML.

Animating URLs with Javascript and Emojis

No one is doing it, but you can do it.

What Is JavaScript Made Of?

A mental model of JavaScript, structured like a glossary.

Min and Max Width/Height in CSS

Explanations, illustrated examples, and use cases.

Progressive Web Apps in 2020

Where we are and what’s ahead of us.

Sampling bias, FDR, and The State of JS

Let’s not use survey results as cannon fodder for framework wars.

What it means to be a front-end developer in 2020 (and beyond)

​​Things change, but the guiding light not that much.

Why I moved from React to Svelte and others will follow

Code snippets to compare React with Svelte.

Browser 2020

Things you can do with a state-of-the-art web browser.

Front-End Performance Checklist 2020

Let’s create fast experiences on the web.

Unlocking Colors

Color spaces for humans vs. color spaces for machines.

Next.js 9.1.7

Improvements of the latest releases of the JavaScript framework.

How to Stack Elements in CSS

You can also overlap elements with CSS Grid.

Smaller HTML Payloads with Service Workers

Let’s delight users with limited data plans even more.

Awesome CMS

A constantly-updated collection of content management systems.

Firefox 72 for Developers

CSS Motion Path, individual transform properties, and more.

Why You Should Choose HTML5 'article' Over 'section'

Misconceptions about some essential HTML5 tags.

[css-grid-2] Masonry layout

Proposal to extend CSS Grid to support masonry layout.

Using easing for more than just CSS transitions

Natural gradients and box shadows with easing effects.

Snowpack

Build modern web apps with faster iteration, without a bundler.

Web DNA Report 2019

The top 10 frustrations for web developers and designers.

Performance Budgets, Pragmatically

A way to define performance budgets for any website.

Fun with CSS Motion Path

It’s time to animate elements along a path with pure CSS.

Monitoring Performance with the PageSpeed Insights API

A way to automate website performance measurement.

2019 JavaScript Rising Stars

Projects that got traction on GitHub in 2019.

Hiding Elements On The Web

HTML/CSS techniques with use cases and examples.

7 CSS properties you had no idea about

There are some really interesting things out there.

“Be very careful when writing example code. This is the code everyone will copy.”

Tiny Helpers

A collection of useful single-purpose online tools.

Google Cloud Run

Deploy your side-projects at scale for basically nothing.

Should you self-host Google Fonts?

What you can do to dramatically speed up font loading.

Building a more private web

A path towards making third party cookies obsolete.

CSS4 is here!

Let’s bring desperately-needed attention to CSS.

JetBrains Mono

A typeface for developers, adapted to reading code.

“Oh the irony of having a dog you name Sudo who doesn’t listen to you.”

Boring by default

Why not use a traditional web development stack?

The 'No Code' Delusion

Why ‘no code’ tools are not a software development silver bullet.

Get Ready for New SameSite=None; Secure Cookie Settings

What web developers need to know.

Collab Mode

CodePen now enables people to concurrently work on code.