Web Application Development: What You Need to Know

Most modern businesses cannot thrive without building a strong online presence. Web application development is one of its key components, which not only improves online visibility but is also a booming market. Global web development is projected to surpass $130 billion by 2032, growing by over 8% annually.

Despite the clear benefits of web applications — such as accessibility, easier development and maintenance, and lower costs — many businesses overlook their importance and focus on mobile development instead. However, mobile apps, with all their impressive features, aren’t always the best fit for every business model. A thoughtfully built web application offers a cost-effective way to engage users without requiring them to download and update an app on their devices.

In this article, we’ll discuss the web application development process in depth. You’ll learn what web apps are, how they work, and the tech stack you need to build them. As a bonus, we’ll also share tips on hiring a web app development company that perfectly matches your requirements.

What Is Web Application Development?

A web application, or web app for short, is a software program that runs on a web server and is accessed through a web browser. Such apps don’t need to be installed on a device to function. Users can simply open them from any gadget with a web browser, like a computer, smartphone, or tablet.

In contrast to web applications, mobile apps are built specifically for mobile devices and usually need to be downloaded from an app store. They can work offline, depending on their features, and are typically made for a specific operating system, like iOS or Android.

Let’s now recap the main characteristics of a web app.

• Runs in a web browser. Web applications work within Chrome, Firefox, Safari, and other web browsers.
• Requires internet access. Since web apps rely on a server, they need a stable internet connection to operate.
• Compatible with various platforms. Unlike mobile apps that are usually restricted to a specific operating system, web apps work across multiple platforms without needing different versions.
• Makes maintenance and updates easy. Again, because web apps are hosted on a server, updates handled by the developer are automatically available to everyone.

How Does a Web Application Work?

A web app’s architecture consists of two primary components: the client side and the server side. The interaction between them is fundamental to how web applications work. So, let’s explore each aspect in detail.

Client Side

The client side, or frontend, is everything users interact with directly in their web browsers. It includes user interfaces, graphics, and user experience.

1. User interaction. It’s the starting point of any web app experience. The user interacts with the application by clicking buttons, entering text, or performing other actions.
2. Web browser. The web browser receives the user’s input and interprets it as a request to the web application.
3. Request initiation. The web browser sends a request to the web app’s server, typically using the HTTP protocol.

Server Side

The server side of web apps, or simply the backend, is responsible for processing requests, managing data, and delivering responses back to the client.

4. Receiving the request. The web app’s server receives the request from the client’s web browser.
5. Processing logic. After receiving the request, the server processes it based on the app’s programmed logic and rules. This involves determining what data is needed, how it should be processed, and what actions to take.
6. Database interaction. If necessary, the server may interact with a database to retrieve or store data.

Generating a Response

After the server has processed the request, it generates and sends a response to the client.

7. Data transmission. The server compiles the results of its processing into a structured format, either JSON or XML. This data is then transmitted to the client.
8. HTTP/HTTPS protocol. The response goes back to the client’s web browser using the HTTP or HTTPS protocol. HTTP dictates how messages are formatted and transmitted, while HTTPS encrypts the data during transmission. 

This entire process, from the user’s initial interaction to the server’s response, is called the request-response cycle. It’s at the core of how web apps function.

Client-Side Rendering and Display

After the server sends the response, the client side takes over once again to render the web app for the user.

9. Rendering the response. The client’s web browser receives the server’s response, interprets it, and updates the user interface accordingly. The process involves creating or modifying HTML elements based on the returned data.
10. Dynamic updates. In many cases, web applications need to reflect real-time changes without making users reload the page. This is possible through AJAX or WebSockets.

Key Technologies Used in Web App Development

Various web application development tools and technologies are used to create solutions with a smooth user experience and rich functionality. Let’s discuss the most popular options.

Frontend Technologies

Frontend technologies let you create visual components of a web app that users interact with. The most commonly used languages and frameworks include:

• HTML. The foundation of web pages, HTML is used to structure content and define elements like headings, paragraphs, and links.
• CSS. Used to style HTML elements, controlling their layout and formatting.
• JavaScript. A programming language that adds interactivity and dynamic behavior to web pages.
• React. A JavaScript library for building user interfaces, that allows developers to create reusable UI components and manage application state efficiently.
• Angular. A TypeScript framework for building single-page web applications.
• Vue.js. A model-view-view-model JavaScript framework that offers a flexible and incremental approach to building web applications.

Backend Technologies

Backend technologies handle the server-side logic, database interactions, and API management. Popular web application development frameworks and languages for the backend include:

• Node.js. A JavaScript runtime environment that allows developers to build scalable and high-performance web applications.
• Python. A high-level, general-purpose programming language often used for backend development. With popular frameworks like Django, it is a preferred choice for projects involving vectorization and complex data processing for LLM integrations.
• Django. A Python web framework suitable for rapid development.
• Ruby on Rails. A model-view-controller framework that emphasizes convention over configuration and offers a wide range of tools for web application development. We often use it to build AI-ready applications that require robust security and clean architecture from the start.
• Laravel. A PHP framework with expressive, elegant syntax, offering a productive environment for building web apps.
• Java. A general-purpose programming language used for backend development.

Regardless of the chosen stack, we prioritize stateless design within a modular monolith architecture to ensure clean code boundaries without initial infrastructure overhead. For high-traffic applications, we also integrate Content Delivery Networks (CDNs) and cloud-native auto-scaling to maintain performance in real-time.

Let’s also discuss database management systems — solutions for storing, retrieving, and managing data in web apps. Different types are available:

• Relational databases. Store data in tables with rows and columns, such as MySQL and PostgreSQL.
• NoSQL databases. Store data in a more flexible format. Examples include MongoDB, Redis, and Cassandra.
• Cloud-based databases. Managed database services offered by cloud providers, like Amazon, Microsoft, and Oracle.

Finally, there are APIs or application programming interfaces. They define the methods and data formats that applications can use to communicate with each other. APIs are necessary to integrate web apps with external services, like payment gateways, social media platforms, or any other third-party solutions. In a modern ecosystem, APIs also serve as the primary bridge for connecting your application to advanced AI models and cloud-native services. This saves time on development and lets you expand your app’s functionalities without building every feature from scratch.

Bonus: How to Find and Hire a Web App Development Company

To build a web application that really enhances your online presence and engages your users, you need a trusted development partner. Here’s how to find and hire one.

Define Your Destination

Before searching for a web app development company, clarify your project’s goals and requirements. This includes identifying the following:

• Core purpose. Determine whether your app will focus on content delivery, data analytics, or something else entirely.
• Target audience. Create a picture of who your ideal user is.
• Key features. Decide on the main features your web app should include, whether it is user authentication, payment processing, or data visualization.
• Budget. Set a realistic budget for development, considering your project’s size, timeline, and desired quality.
• Timeline. Set a timeline for development and launch.

Conduct Research

Once you’ve clarified your requirements, start researching potential companies. Here are some channels to explore:

• B2B directories. Websites like Clutch and GoodFirms list various development companies with reviews, case studies, and ratings.
• Freelance websites. Platforms like Upwork, Toptal, and Fiverr can connect you with individual developers or small teams.
• Social media. LinkedIn and Twitter can help you find development companies and individual experts.
• GitHub. This platform is a great place to discover talented developers and assess their coding skills.
• Tech blogs and forums. Specialized tech communities like Reddit or Stack Overflow are decent sources for finding web app developers.

Make the List of Candidates and Analyze Them

After gathering potential candidates, narrow down your list and evaluate if shortlisted candidates suit your project. Consider the following:

• Expertise and experience. Assess the company’s background in building similar web apps. Go through their portfolio as well.
• Compatibility. Consider the company’s cultural fit and communication style. Make sure that you can collaborate effectively.
• Tech stack used. Verify that the company is proficient in the technologies required for your project and evaluate their team’s web application development skills.
• Client testimonials. Read reviews and case studies from previous clients to assess the company’s quality of work.

Hire Web App Developers

After careful evaluation, select the company that meets your needs and can truly benefit web app development. Then, negotiate contracts, discuss project timelines, and decide on communication channels.

Build Your Web App with Lember

Web application development can really take your business to the next level. It’s an affordable way to connect with your users and showcase your offerings online. However, building one is a lot more than just choosing technologies and calling it a day — it’s about getting all the pieces to fit just right, both on the client and server side.

If you’re looking to improve your digital presence or need a hand bringing your web app idea to life, Lember has got your back. With 10+ years of experience in web application development, we can create solutions of all kinds. So, let’s discuss your idea and see how we can implement it together.