Since Node.js was introduced, more companies have gradually adopted it for production systems. In the previous article, we covered real examples from Netflix and NASA. This time, technine introduces five more real-world cases to help you understand why Node.js has become so widely used.
Case 3: Trello
Trello is a project management tool used across many industries and countries. A platform like Trello needs real-time updates with minimal delay, which is one reason it uses Node.js on the server side.
Trello has to handle many live connections on its servers so updates can be delivered smoothly and on time. Node.js provides a lightweight foundation for single-page applications, allowing Trello to process updates with almost no delay.
The Node.js architecture also helps reduce development and prototyping costs, which makes it a practical choice for a product that depends on speed and responsiveness.
Case 4: PayPal
PayPal has more than 200 million active accounts and is a global leader in online payments and transfers. In 2013, the company identified several difficulties in its JavaScript workflow. Development took longer than expected, performance was not ideal, and frontend and backend work did not integrate smoothly enough.
After adopting Node.js, PayPal’s developers were able to build Node.js-based applications in less time. Loading time was reduced by 35%, and the number of user requests handled per second doubled.
Case 5: LinkedIn
LinkedIn continues to grow in popularity, with hundreds of millions of users across more than 200 countries. After moving from Ruby on Rails to Node.js, LinkedIn created an application that ran ten times faster than its previous version.
The earlier Ruby application caused long loading times, especially when traffic increased. By rebuilding the architecture around JavaScript, LinkedIn simplified interaction between the client and server. The number of servers dropped from 30 to 3, while traffic capacity doubled.
Case 6: Uber
Uber operates across many countries and regions and has to support a constantly growing number of connections. To keep its service reliable, the company needed a real-time architecture that could process large volumes of data and user requests smoothly.
Node.js enables Uber to handle substantial data flows and respond quickly to large numbers of user requests. With Node.js, Uber has been able to process millions of transactions each day. By building hundreds of stateless endpoints, Uber improved connectivity and reduced management overhead.
Case 7: Twitter
More than 80% of Twitter accounts are accessed through smartphones, which led Twitter to build Twitter Lite. The app is designed to work even when internet connections are poor.
The web version of Twitter was not fully optimized for slow connections, so Twitter used Node.js to support a lighter experience. Twitter Lite takes up very little storage space and can still run on 3G and 2G connections. Its maintenance cost is also much lower than the desktop version.
Case 8: eBay
eBay is one of the largest C2C and B2C online marketplaces, serving a massive user base. Its previous application ran on JavaScript but suffered from long startup times and weaker performance.
As a high-traffic platform, eBay needed technology that could speed up development and keep pace with frontend iteration. The company used Node.js to create real-time microservices without overloading its infrastructure. Node.js gave eBay better scalability, speed, and transparency.
After these eight examples, you can see why Node.js is valuable for companies that need real-time updates and large-scale data handling. Its scalability, speed, and transparency make it a strong option for enterprises and SMEs with demanding digital products.
Translation supported by AI.