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OutSystems
BuiltWithA 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.
Based on our record, BuiltWith seems to be a lot more popular than OutSystems. While we know about 162 links to BuiltWith, we've tracked only 2 mentions of OutSystems. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This month, I followed in the footsteps of many other OutSystems developers and completed the exam to become a certified Associate Reactive Developer. This exam focuses on the fundamentals of OutSystems reactive web and mobile application development, and is for developers new to the OutSystems platform. - Source: dev.to / over 2 years ago
Check out the AWS Architecture Blog to see how OutSystems designed a globally distributed serverless request routing service for its multi-tenant architecture. Source: over 5 years ago
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 in 2025, a testament to its scalability and developer trust, as reported by BuiltWith. You’s ability to build a framework independently, without corporate backing, underscores his... - 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
Also, wow that is an obsene amount of libraries they use: https://builtwith.com/?https%3a%2f%2fspectrum.ieee.org%2fdisney-robot-2668135204. - Source: Hacker News / over 2 years ago
I would say run both sites through https://builtwith.com/ to get what all they used in the building process. Source: almost 3 years ago
Mendix - Mendix is the fastest and easiest low-code platform used by businesses to create and continuously improve mobile and web apps at scale.
Wappalyzer - Wappalyzer is a technology profilers and leads data provider. Create lists of websites and contacts that use certain technologies.
Zoho Creator - Zoho Creator is a low-code application development platform that helps you build a custom, mobile-ready apps to run your business.
WhatRuns - Extension that helps you identify technologies used on any website at the click of a button.
Xamarin - Create iOS, Android and Mac apps in C#
Elucify - A completely free software tool that uses crowdsourced data to find business email addresses