
rollup.js
Babel
Parcel
Vite
esbuild
React
npm
Webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset.

VWO
AB Tasty
Google Analytics
Google Marketing Platform
PractiTest
Azure DevOps
Micro Focus ALM
A/B testing you'll actually use.
Which is more popular?
Based on our record, Webpack seems to be more popular. It has been mentioned 253 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | webpack.js.org | optimizely.com |
| Pricing | ||
| Company | — | Startup from the United States |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
Learn Webpack - Full Tutorial for Beginners
More videos
Optimizely Review | A/B Testing | Pearl Lemon Reviews
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Webpack and Optimizely. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Tool Prod Build Time One Prod Build Time Two Prod Build Time Three Prod Build Time Avg Parcel 738.509 s 35.364 s 35.592 s 269.82 avg s Rollup 0.712 s 0.665 s 0.714 s 0.697 avg s Webpack 3.636 s 3.805 s 4.305 s 3.915...
document.body.className = document.body.className.replace(/(^|\s)is-noJs(\s|$)/, "$1is-js$2")HomepageHomepageJavascriptBecome a memberSign inGet startedIf you’ve ever configured Webpack, Parcel will blow your mind!And...
From first impressions and experience, my take currently would be as follows. Webpack is generally going to be more flexible. It also places a bit more power in the developers hands to make bundling happen exactly as...
Optimizely is a lower cost entry tool for anyone looking to do website testing. While their pricing structure has changed over the years it still is a pretty cost effective solution. It is easy to get tests up and...
Optimizely is more of a personalization tool but you cannot ignore its A/B testing superiority. It helps you put the face of the most appealing site in front of customers. There’s a lot of things that are good in this...
Optimizely is a well known A/B testing and experimentation tool for both web and mobile. It claims to be built for the enterprise with features like roles, permissions, and two-factor authentication while still...
Recommendations tracked on public social media and blogs since March 2021.


In 2012, Webpack was released as an open-source JavaScript module bundler. It takes dependencies as input and builds a dependency graph, enabling developers to take a modular approach to web application development. This allowed them to... - Source: dev.to / 2 months ago
From a developer experience perspective, it's worth noting that Next.js was built using webpack for bundling, which has struggled to maintain performance. Therefore, when changing something in the code, reload times can be very slow. For... - Source: dev.to / 4 months ago
The reality is simple: minification was never security. It's a size optimization that bundlers like esbuild, Webpack, and Rollup do by default. Variable renaming slows down human readers but LLMs read minified code like you read... - Source: dev.to / 6 months ago
Tracking Optimizely since Mar 2021.
When comparing Webpack and Optimizely, you can also consider the following products.

Rollup is a module bundler for JavaScript which compiles small pieces of code into a larger piece such as application.
Compare rollup.js to Webpack or Optimizely:

Use VWO to tweak, optimize & personalize your website with minimal IT help.
Compare VWO to Webpack or Optimizely:

Babel is a compiler for writing next generation JavaScript.
Compare Babel to Webpack or Optimizely:

AB Tasty is an all-inclusive platform for conversion rate optimization, personalization, customer activation, and testing.
Compare AB Tasty to Webpack or Optimizely:

Blazing fast, zero configuration web application bundler
Compare Parcel to Webpack or Optimizely:

Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
Compare Google Analytics to Webpack or Optimizely: