Level Up

A collection of resources for WordPress Developers, written and curated by experts

Refactoring JavaScript: How to Avoid Technical Debt While Working with Legacy Code

Do you have a legacy JavaScript codebase you’re avoiding refactoring? So does WordPress. If you’ve been paying attention to WordPress core lately, you may have noticed that there has been… Read more

Peter Tasker

May 23, 2017

Using the New PDF Preview Images in WordPress 4.7 in the Real World

When WordPress 4.7 was released at the end of 2016 most of the response was around the new REST API endpoints for posts, comments, terms, users, meta, and settings. However,… Read more

Iain Poulson

May 16, 2017

Mergebot Now 1,200% Faster: Tuning a Laravel App with Blackfire

We just hit a huge milestone in our Mergebot beta by lifting the 1,000 queries per deployment limit 🎉. We created Mergebot to make merging WordPress databases easy. When we… Read more

Gilbert Pellegrom

Apr 11, 2017

Dependency Management and WordPress: A Proposal

‘Dependency hell’ is a problem faced by all software, and it has been rearing its ugly head in the WordPress space over the last few years with more and more… Read more

Iain Poulson

Mar 22, 2017

WP Offload S3 1.4 Released

Today is release day for WP Offload S3 and with it comes some new features and some changes. It’s been just over two months since we released version 1.3, but… Read more

Ashley

Mar 14, 2017

Introducing WP Image Processing Queue – On‑the‑Fly Image Processing Done Right

I’ve been bugging core contributors and plugin authors about background processing for a year and half now. To the point where Krogsgard even made fun of me for it at… Read more

Brad

Mar 7, 2017

Automating Local WordPress Site Setup with Scripts Part 3: Automating the Rest

This is article 3 of 3 in the series “Automating Local WordPress Site Setup with Scripts” In my last post in the Automating Local WordPress Setup series, I created a… Read more

Matt Shaw

Feb 21, 2017

Our Struggles to Stay Healthy While Working From Home Part 2

This is article 2 of 2 in the series “Our Struggles to Stay Healthy While Working From Home” It’s been just over a year since we posted about our struggles… Read more

Iain Poulson

Jan 31, 2017

Hooks, Line, and Sinker: WordPress’ New WP_Hook Class

The hooks system is a central pillar of WordPress and with the 4.7 release a major overhaul of how it works was merged. The Trac ticket that initially raised an… Read more

Peter Tasker

Jan 24, 2017

Deploying WordPress Plugins with Travis CI

Ever since I built my first WordPress plugin, the process of deploying the code to the WordPress.org Subversion repository has been a painful one. With Git as the widespread VCS… Read more

Iain Poulson

Dec 6, 2016

On The Fly Image Processing Causes More Problems Than It Fixes

Update 2017-03-07: We’re now offering a better solution to on-the-fly image processing. Images are the bread and butter of the web. Without images and other media the web would be… Read more

Ian McFarlan

Nov 29, 2016

Finding Bottlenecks in WordPress Code

A few months back Iain wrote about how our team pushes each other to be better developers, which included insights into how we improve code quality using tools such as… Read more

Ashley

Nov 15, 2016

How I Learned to Stop Worrying and Love Giving a Talk

I’ve attended many conferences in my time and watched every single speaker with admiration, because just the thought of getting up and talking to an audience myself leaves me in… Read more

Iain Poulson

Nov 8, 2016

WP Migrate DB Pro 1.7 & CLI Addon 1.3 Released

Just 5 months after our last major release, I’m happy to announce the release of WP Migrate DB Pro 1.7 and CLI addon 1.3. In the past, we’ve struggled with… Read more

Brad

Nov 1, 2016

Automating Local WordPress Site Setup with Scripts Part 2: Creating a WP-CLI Package

This is article 2 of 3 in the series “Automating Local WordPress Site Setup with Scripts” In my previous article in this series, I discussed some simple ways to make… Read more

Matt Shaw

Oct 18, 2016

WP Offload S3 1.2 Released

After nearly 6 months of development I’m pleased to announce the release of WP Offload S3 1.2. For now you’ll need to download it from My Account. Updates through the… Read more

Ashley

Oct 4, 2016

Creating a Custom addon for Local by Flywheel

Update: This post was originally written about Pressmatic before the app was purchased by Flywheel and had its name changed to “Local”. I have updated the post’s text and most… Read more

Jeff

Sep 27, 2016

Building Reactive WordPress Plugins – Part 3 – Elm

This is article 3 of 3 in the series “Building Reactive WordPress Plugins” In this final part of the Building Reactive WordPress Plugins series I’ll be exploring using Elm to… Read more

Ian

Sep 20, 2016

Freemius Monetization Review: An Easy Way to Sell Your Plugins and Themes

Ever since building my first WordPress plugin I have been interested in the different business models around monetizing plugins. A while back I heard of Freemius, a monetization service for… Read more

Iain Poulson

Aug 30, 2016

Scaling a Cron: Checking Hundreds of Sites Every Minute

In my last article I described how I built a cloud app using Laravel Spark. Web Uptime is a website uptime and monitoring app that checks your website’s status every… Read more

Gilbert Pellegrom

Aug 23, 2016

Assets Addon 1.2 for WP Offload S3 Released

Another awesome iteration of the Assets addon has arrived. In version 1.2, we’ve redesigned part of the UI to fix some of the things that have been irritating us. For… Read more

Brad

Jul 27, 2016

Team Retreat In Vienna

Delicious Brains in Vienna: Our Second Annual Company Retreat

A few weeks ago, our team descended upon Vienna, Austria for our second annual company retreat and WordCamp Europe. After last year’s retreat around WordCamp Miami we had decided that… Read more

Brad

Jul 19, 2016

Tips for Power Users of WP Migrate DB Pro

Tips for Power Users of WP Migrate DB Pro

As a developer, I love simple tools that do a specific set of tasks really well and then get out of your way. I use tools like MAMP, WP-CLI, Grunt,… Read more

Jeff

Jul 12, 2016

Building a SaaS app with Laravel Spark: Web Uptime

If you keep up with the Laravel community at all you’ll be aware that Taylor Otwell recently released his much anticipated SaaS scaffolding library called Spark. Spark is a library… Read more

Gilbert Pellegrom

Jun 21, 2016