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Find out the technology behind websites

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Combines a powerful Code Editor together with an impressive array of static analysis tools that will change the way you work with code.

Which is more popular?
Based on our record, BuiltWith seems to be a lot more popular than Understand. While we know about 162 links to BuiltWith, we've tracked only 2 mentions of Understand.
Website, pricing, platforms and company facts side by side.
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| Website | builtwith.com | scitools.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Australia | — |
| Listed in |
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
No analysis of Understand yet.
Walkthroughs and reviews on video.
How to Find Competitors Customers | BuiltWith Review | Kas Andz
More videos
Getting Started with Understand
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing BuiltWith and Understand.
Understand's answer:
-C/C++ -Qt -Understand
Understand's answer:
-NASA -U.S. Airforce -General Electric -Nvidia -Raytheon -Amazon -Lockheed Martin -Samsung -Raytheon -Pratt & Whitney -Dell -Intuity -Aurora Flight Sciences
Understand's answer:
Understand has shares many features found in other products but all wrapped into one easy to use package. Our most defining feature is the Hyper-XREF™ technology we invented that provides a detailed cross-referencing of all the interconnections in your code.
Share your experience with using BuiltWith and Understand. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


A great tool to help you discover the technology being used by a variety of websites. I was impressed that upon signing up that I had full access to a free list of leads.
Sometimes, BuiltWith may not fit your specific business needs. If so, we’ve compiled our list of best BuiltWith alternatives you may want to consider for your profiling.
BuiltWith is a truly comprehensive tool that will mine a ton of information from anyone’s site and serve it to you in a manner you will be able to crunch and use it. You might take your time since it is a lot of...
Just like its name, this tool lets user UNDERSTAND code by analyzing, measuring, visualizing and maintaining. This allows quick analysis of massive codes. This is one tool that is mainly used by the aerospace and...
Recommendations tracked on public social media and blogs since March 2021.


Evan You, creator of Vue.js, is a prime example. Vivek Nair, Co-Founder of BotGauge, notes that You “created something that addresses real developer needs with clean logic and thoughtful design.” Vue.js powers over 1.5 million websites... - Source: dev.to / over 1 year ago
There exist websites like https://builtwith.com so answer to your question is yes. - Source: Hacker News / over 1 year ago
BuiltWith says the web client is NextJS which is interesting as ChatGPT made a big switch away to Remix IIRC. https://builtwith.com/?https%3a%2f%2fclaude.ai%2fnew. - Source: Hacker News / almost 2 years ago
I have great love for Perl, but I'm not super eager to go back to using it. I used it in probably one of the more cursed contexts I've ever heard of. Understand[0] is a static analyzer for many languages, and one of its killer features... - Source: Hacker News / 10 months ago
Https://lattix.com/ can produce impact reports showing “changing X affects A, B and Y on the first level which in turn affects C, D, E, F and Z on the second level” and so on… https://scitools.com/ Understand can answer similar questions... - Source: Hacker News / almost 5 years ago
When comparing BuiltWith and Understand, you can also consider the following products.

Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
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SonarQube, a core component of the Sonar solution, is an open source, self-managed tool that systematically helps developers and organizations deliver Clean Code.
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Extension that helps you identify technologies used on any website at the click of a button.
Compare WhatRuns to BuiltWith or Understand:

Source Insight is a programming editor & code browser with built-in live analysis for C/C++, C#, Java, and more; helping you understand large projects.
Compare Source Insight to BuiltWith or Understand:
A completely free software tool that uses crowdsourced data to find business email addresses
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Master Your C and C++ Codebase with Precision and Insight
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