A web application is a software application that runs on a web server rather than being installed on a user's local computer or device. It is accessed through a web browser over the internet or an intranet. Web applications use technologies like HTML, CSS, JavaScript, and server-side programming languages (e.g., Python, Ruby, PHP, Java, Node.js) to deliver interactive and dynamic user experiences.
Access Anywhere: As long as the user has an internet connection, they can access the web app from any device with a browser, like a laptop, tablet, or smartphone.
Cross-platform Compatibility: Web apps can run on different operating systems (Windows, macOS, Linux) without requiring separate versions for each, making them more versatile compared to traditional desktop applications.
Client-Server Architecture: In a web app, the front-end (client-side) is responsible for the user interface, while the back-end (server-side) handles data processing and storage. The client sends requests to the server, and the server responds with the necessary data.
Dynamic Content: Unlike static websites, web apps can change content in real-time based on user input, server responses, or interactions, allowing for personalized user experiences.
Database Integration: Web applications can connect to databases (e.g., MySQL, MongoDB) to store and retrieve data, enabling functionality like user accounts, product catalogs, and other dynamic data features.
Security: Since web applications are accessible over the internet, security features such as authentication, authorization, encryption (SSL/TLS), and input validation are crucial to protect user data and ensure safe interactions.