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What is PaaS (Platform as a Service) in Cloud Computing?

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30th Aug, 2022
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What is PaaS (Platform as a Service) in Cloud Computing?

PaaS consists of a replica of IT and software infrastructure available entirely on the web. It focuses on boosting mobility and cost-effectiveness.

Sustainable digitisation is extending its wings in the shape of cloud-based computing services, delivering convenience, user experience and technological advancements all in one place. PaaS is one such part of sophisticated digital resources, aiming to create more user-friendly mobile technology for efficient working schemes. It builds a flexible work environment to create, manage, and run system operations through cloud-led platforms, replicating system software. 

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As businesses move towards creating their exclusive webspace and application, complex software is required on-premises to build the relevant space. The process can get hectic with the complex hardware and software demands necessary for creating such applications. PaaS provides an all-in-one platform to fulfil all such requirements without needing users to put ample funds and time. As a result, PaaS has built itself as a crucial part of cloud computing, providing more than just storage benefits. So, what exactly is PaaS in cloud computing?

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Let’s dive deep into knowing PaaS and its various aspects to learn how developers can leverage its power for creating, saving, and powering pre-existing technologies!

Understanding PaaS

PaaS or platform as a service is a part of the cloud computing platform, where the third part extends application development hardware and software tools through the web. In simple terms, any developer or organisation can use a PaaS extending platform to rent software and implement it to create their applications. The service saves users from spending a fortune on hardware and software for a single-use. All services required for customising applications are available on their platform. The user simply has to buy or rent them for the time being.

Lack of storage or monetary funds often prevents people from getting new supplies. Still, the PaaS service is an efficient replacement easily accessible through an internet connection and simplifies the entire web application building process. The cloud-based service can create, run, manage, customise, and update applications through the web without accessing the host system.

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Types of PaaS

The PaaS platform extends various tools used for diverse purposes. Here are different types of PaaS fit for different uses. 


Public PaaS is closely related to Saas. Its best usage is in the public cloud. It enables users to deploy applications while letting the cloud provider control all the other major segments like databases, storage system networks and servers. 


Private PaaS leverages the agility of the public one but with an added security wall through the user-applied firewall. The platform works on a private cloud and maintains security through the on-premises security structures. The Private PaaS infrastructure complies with protection standards while benefiting the platform developers.


The Hybrid cloud using infrastructure called Hybrid PaaS comprises features of both Public and Private PaaS. It contains the flexibility and efficiency of Public PaaS, while the security features of Private PaaS are also added for user convenience. 


Communication or CPaaS is useful for developers, including communication features on their app. CPaaS enables users to add communication features to their application without the lengthy hassle of back-end infrastructure and a required interface. The platform extends an entire framework without needing developers to build it from scratch.


MPaaS enables a simpler form of creating mobile applications. Users don’t need to use their coding skills to work with MPaaS. It provides a drag-and-drop feature to implement all the required features. The service is priced monthly and can be customised with many inbuilt services. 


Open PaaS is an open-source infrastructure that can run on all devices and grants rich web applications, including calendars, contacts or mail. Its goal is to extend a platform suitable for collaborative applications. 

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Components of PaaS

PaaS is composed of several features. Here are the most crucial organs of PaaS:


Middleware is the most necessary feature of PaaS, working as a bridge between operating systems and user-facing applications. Middleware is essential for running applications. Therefore, PaaS provides it as a feature, so developers need not create it from scratch.

Development Tools

Development tools are various tools required to build an application, like compiler and debugger. These tools depend on the PaaS extending platforms a developer uses and are accessible from the web. 

Database Management

PaaS maintains databases while also providing users with database management tools to administer and maintain detailed databases.

Operating Systems

PaaS infrastructure provides operating systems where applications are worked and run. 


PaaS includes the primary layer of cloud computing structure, which is IaaS. Thus, features available in IaaS are also present in PaaS. The PaaS provider manages these features, from servers, storage, and databases to networking resources and other features. 

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Advantages of Using PaaS

Here are some of the advantages of using PaaS:

  • PaaS extends a single environment to accomplish all the processes required for app development, enabling developers to ensure the application runs properly. 
  • PaaS has a cost-effective pricing structure depending on the features used. Developers get several features such as Middleware on the platform without spending time and cost creating it from scratch.
  • PaaS platform handles the licensing aspect of all tools available on the infrastructure. 
  • Developers can try using new operating systems and tools on their applications without fearing the risks of investment concerns.
  • Development teams can easily access and collaborate on PaaS infrastructure to work together from anywhere. They can access all the tools as the host user simply through an internet connection. 

Growth of PaaS in the Future

With an increasing number of organisations focusing on sustainability, PaaS is gaining increased acceptance in the digital space. Today, people seek convenience and mobility from tools and technologies, and relying on a host system for tech practices is outdated. The public cloud service market experienced a 26.2% growth globally, while the public PaaS market worldwide grew to $80 billion, narrating the strengthening roots of PaaS and implying its future presence at the same time. The growth also relays a hopeful future for aspirants seeking a career in the cloud computing domain. 

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Implement your Cloud Programming Skills with Professional Courses

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As cloud computing becomes a strong domain with improved features and growing popularity, many aspirants seek suitable coursework to step into the field. upGrad’s Advanced Certificate Programme in Cloud Computing is the right choice for anyone willing to kickstart their cloud computing career. 

The course is created for learners with basic programming and computing skills. It includes topics such as Spring Boot, SQL & NoSQL Databases, Spring Cloud, Cloud Native Development, etc., for preparing learners for the current market. Along with the course benefits, upGrad extends an excellent learning experience with student support, peer-to-peer networking, expert faculty, and career assistance to grab boosting career opportunities. 

PaaS is the present and future of development with its convenient infrastructure, providing expensive tools at cost-effective prices right at users’ fingertips. You can learn more about it through our well-structured course. 


Rohan Vats

Blog Author
Software Engineering Manager @ upGrad. Passionate about building large scale web apps with delightful experiences. In pursuit of transforming engineers into leaders.

Frequently Asked Questions (FAQs)

1Give examples of PaaS extending platforms

Amazon Web Services is one of the most prominently used and popularly known platforms working with a combination of PaaS and IaaS infrastructure. The platform extends a comprehensive cloud computing platform with diverse hardware and software tools required to build applications. PaaS, driven by cloud computing, allows people to access the platform and collaborate on the project globally. Microsoft’s Azure is another PaaS providing platform.

2Who uses PaaS?

PaaS mainly facilitates application development; therefore, app developers, programmers, and companies use the platform as a cost-effective and time-saving option instead of spending a fortune on buying pricey software. PaaS services can also be used for other internal projects by organisations readily available for collaborative work

3Difference between PaaS and IaaS.

PaaS is similar to any cloud computing service but mainly focuses on creating applications. The software components provided on PaaS allow developers to make as many customisations as required in the application. On the other hand, IaaS is the most flexible variant of on-demand cloud computing services. IaaS can be viewed as a self-service platform where customers can pay for the relevant service they wish to use. Services are highly scalable and can be purchased per consumption, so there is no chance of wastage.