Parcel 2: the Automagical Bundler

DevOps.js

DevOps.js Conf 2021

Jasper De Moor

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JSNation 2023

Building a Node.js Runtime for the Browser

React Summit US

React Summit US 2023

We'll walk through what it takes to build a Node.js runtime for the browser, the challenges we discovered along the way and solutions we built to those challenges.

Parcel 1 was created out of the frustration from configuring slow and hard to configure legacy bundlers like Webpack and in turn started a trend of zero-config tooling. Unfortunately, Parcel 1 had some major design flaws that led to the creation of Parcel 2, a ground-up rewrite of Parcel which aims to resolve those design flaws whilst also creating a bundler that can scale to the size of companies like Atlassian and Adobe and beyond. A new plugin system, bundler targets, optional configuration, stable caches, improved scope-hoisting, improved developer experience and better performance are just a few of the things we’ve been working on for the last 3 years. In this talk I’ll glance over how Parcel works and talk about a couple of the largest and most exciting new features in Parcel 2. <a href="https://www.froala.com/wysiwyg-editor?pb=1"> </a>