
CodeSandbox
replit
CodePen
GitHub Codespaces
Glitch
JSFiddle
vscode.dev
Online VS Code Editor for Angular and React

UserTesting.com
UserZoom
Hotjar
Lookback
Validately
Userlytics
PlaybookUX
A powerful tool which enables user testing on prototypes, wireframes and websites.

Which is more popular?
Based on our record, StackBlitz seems to be more popular. It has been mentioned 112 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | stackblitz.com | loop11.com |
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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 StackBlitz yet.
Overall verdict
Why this product is good
Recommended for
Loop11 is recommended for UX designers, researchers, product managers, and digital marketers who need to conduct comprehensive usability testing. It’s suitable for teams that require both qualitative and quantitative data to enhance user experiences across web and mobile platforms. Companies and individuals seeking to improve their product design and usability through consistent user feedback will find Loop11 especially beneficial.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using StackBlitz and Loop11. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


All applications created on StackBlitz also get deployed automatically on their servers! So, this Angular toy app I just created is hosted automatically on https://angular-yvyi2j.stackblitz.io/. Most likely, the URL...
I've started using this as my main IDE for new projects when I'm trying things out. If it keeps getting better at the rate it has been, it'll be even better than coding locally.
StackBlitz claims to allow you to code the future in your browser. And after trying it, I’m confident you’ll agree that this web application is extremely useful for coders.
Loop11 does not provide a pool of participants, therefore you’ll have to issue invites to your own users to receive results for your study. UserZoom has a user base of more than 120 million testers.
Recommendations tracked on public social media and blogs since March 2021.


Managing reactive state and dependent computations in JavaScript can get complex, especially when combining asynchronous and synchronous data. RS-X is a library that allows you to bind expressions to plain objects and makes the parts of... - Source: Hacker News / 7 months ago
I like htmx, LiveView, React and Solid. They are great at different points, so I try to combine them in Solv (Stateless Offline-capable LiveView) and write a prototype to show the benefits. Solv's main idea is that stateless servers keep... - Source: Hacker News / 10 months ago
I like htmx, LiveView, React and Solid. They are great at different points, and this is a prototype trying to combine them. Solv's main idea is that stateless servers keep client's state in a volatile cache. It enables server components... - Source: Hacker News / 10 months ago
Tracking Loop11 since Mar 2021.
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Test, measure, and monitor UX with our cost-effective all-in-one platform. UserZoom is a cloud-based solution for online usability testing.
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The #1 Leader in Heatmaps, Recordings, Surveys & More. Sign up for a 15-day free trial and start learning from real user behavior today!
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