What is Cloud File Infrastructure?

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The Internet is the connective tissue of the modern world. It was designed to connect people by allowing them to pass data freely across an open network that links a variety of devices. But the unstructured nature of this expansive network makes it difficult for modern developers to create apps that can take advantage of everything the modern web has to offer.

File Infrastructure is the next evolution of what the Internet promises - a fully configurable and comprehensive platform to organize the data of the Internet for the purpose of building functional, connected applications that can upload data from anywhere on the Internet, transform it for best presentation on any device or framework and then deliver it quickly and dynamically to users. Unlike traditional file systems, which is imposed on users, cloud-based file infrastructure allows developers to easily create unique workflows that provide the best user experience and complements a wide variety of application workflows.


Filestack’s File Infrastructure is a complex system of networking, cloud storage and powerful file processing servers that work together to provide end-to-end file management at web scale and lightning fast speed. It is built and delivered to you as-a-Service or integrated into your application using our intuitive APIs and programming libraries.

Broken down into its individual functions, File Infrastructure looks like this:



The digital world is becoming more fragmented every day. People’s data is spread across the Internet, tucked away in a number of popular services. Filestack’s File Infrastructure offers an elegant and easy-to-integrate solution that unifies all of the cloud storage services and social media platforms, data stores more dense with your user’s files than their own local hard drives, into a single, intuitive upload interface. This data can be stored in your own S3 bucket or a number of other popular cloud storage appliances, or stored within Filestack’s infrastructure for safekeeping and easy access.   Learn More »


The diverse and ever changing nature of the web means the same content has to be served in a variety of ways to ensure accessibility and usability. This places the burden of creating responsive interfaces and flexible design on developers. Filestack’s File Infrastructure can be configured to transform images, videos and other files when they’re uploaded or in a near infinite number of ways and in real-time as they are delivered. This kind of dynamic delivery allows Filestack to always serve the right image based on the user’s device.   Learn More »


The modern web has to be fast, page load times matter, even for users on slower mobile connections. Filestack minimizes a lot of the performance and processing overhead by doing as much work in the user’s browser as possible. Then Filestack’s infrastructure ensures the fastest, most flexible delivery of your content by employing state-of-the-art file transformation architecture for lightning fast on-the-fly processing of files. This powerful, redundant infrastructure sits behind a number of caching layers, including our expansive content delivery network to ensure we’re providing every ounce of performance possible.   Learn More »

The File Uploading API   Sign up Free

What does it do for me?

Web and mobile developers have to solve a number of problems ranging from how to access data scattered across the Internet, how to serve complex responsive designs with minimal load times, all while keeping operating costs at a minimum.

Filestack’s File Infrastructure is designed to solve all of these problems in a very elegant and easy to implement way - 2 lines of code is all it takes to get started.

By providing the basic anatomy of web and mobile applications to developers in a powerful, scalable and simple service, File Infrastructure allows developers to focus on enhancing their applications experience with greater functional while also granting designers even greater flexibility in how they think about and implementing new and cutting-edge design.

The No-Stack Architecture

Filestack’s File Infrastructure allows developers to build beautiful, functional, complex apps that run almost entirely within a user’s browser or device. This means HTML, CSS and JavaScript provide the interface and connectivity back to Filestack’s infrastructure which does the heavy lifting of uploading, processing, storing and delivering data. Gone are the days app developers had to be experts in designing, building, maintaining and fixing complex and costly infrastructure to provide this functionality to their users. Filestack combined with a number of other microservices provides all of the infrastructure required for a scalable, optimized and cost effective environment to run your media rich web or mobile application.

Filestack’s File Infrastructure means one thing for developers and users: You never had to worry about managing your files again. From upload, to delivery, they’re in good hands with Filestack.