Webbappar

Webbappar, short for webbapplikationer, are software programs that run primarily in a web browser over a network. They are delivered and executed on remote servers and accessed through client devices with a browser and internet connectivity, rather than being installed locally. Webbappar are typically platform-independent, allowing users to run them on various operating systems without additional software installation.

Most webbappar follow a client–server architecture, combining client-side code (HTML, CSS, JavaScript) with server-side logic (such as Python, Ruby, PHP, JavaScript/Node.js) and data storage. Modern webbappar often employ asynchronous communication, application programming interfaces (APIs), and may use single-page applications (SPAs) or progressive web app (PWA) techniques to improve responsiveness and, in some cases, offline capabilities.

Key advantages include centralized updates, scalable hosting, and cross-device access, making webbappar common for software-as-a-service (SaaS) products, content management systems, and collaboration tools. Security considerations involve authentication, encryption in transit and at rest, access control, and protection against web vulnerabilities.

Disadvantages can include reliance on network connectivity, potential latency, browser compatibility issues, and concerns about data privacy and control. The ecosystem continues to evolve with trends such as cloud-native architectures, microservices, and enhanced offline support through PWAs.

Examples of webbappar encompass email clients, cloud-based office suites, project management platforms, and many social and productivity services. In Swedish-speaking contexts, the term underscores browser-based software distinct from native desktop or mobile applications.