
VWO
AB Tasty
Google Analytics
Google Marketing Platform
PractiTest
Unbounce
Azure DevOps
A/B testing you'll actually use.
Which is more popular?
Based on our record, Squoosh seems to be more popular. It has been mentioned 203 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | optimizely.com | squoosh.app |
| Pricing | ||
| Company | Startup from the United States | — |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Optimizely yet.
Overall verdict
Why this product is good
Recommended for
Web developers, designers, bloggers, and anyone needing to optimize images for the web, particularly those concerned about maintaining image quality while reducing file size.
Walkthroughs and reviews on video.
Optimizely Review | A/B Testing | Pearl Lemon Reviews
More videos
Jumbo Squoosh-o’s Review! #SLIMESTAGRAM #JumboSquooshos
More videos
How often each product is chosen within a category, 0–100% relative to the other.


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


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...
The only negative thing about this web app, is that it's not clear which formats are supported in which browsers.
Recommendations tracked on public social media and blogs since March 2021.


Tracking Optimizely since Mar 2021.
Use Squoosh for an interactive local comparison, your CMS's image pipeline, or a hosted tool such as TinyImage. Choose the processing model that fits the image and your workflow. - Source: dev.to / 7 days ago
WebP/AVIF over PNG/JPG: Converted all icons to WebP (using Squoosh) – average size reduction of ~60% (e.g., a 40KB PNG icon became 15KB WebP). - Source: dev.to / 20 days ago
It often comes down to compat, and developer requests. Personally I find in-browser encoding for images inadequate, because it doesn't expose enough options. When we built https://squoosh.app/, we exposed the browser encoders for... - Source: Hacker News / about 2 months ago
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