Web developers create websites and web applications using coding languages such as HTML, CSS, JavaScript and Python. They also use other tools to set up email services, user authentication and databases.

They can also work as full-stack developers, which means that they have an understanding of the entire web development process. This knowledge helps them optimize performance, catch issues early and understand different parts of a web service.

HTML and CSS

HTML is a markup language that defines the structure and content of a web page. It uses a series of tags to define different elements, including multiple levels of headings (h1 through h6) and paragraphs (p).

CSS is another markup language that adds formatting and style to a webpage. It includes things like background colors, layouts, borders, shadowing, and much more.

It also allows web pages to be rendered equally well on phones, tablets, and desktop computers. Ultimately, HTML and CSS work together to create the foundation of every web page.

Wireframes

Wireframes are a blueprint of how a website or app will look and function. They are generally created before any actual code is written.

Web developers use wireframes to map out how each page of a site will work, what information will be included and where it will appear. They also show how the content will be arranged and labeled.

They are important for collaborating with clients, as well as with development and design teams. They are a great way to get feedback on your project early and to avoid errors that can be difficult or expensive to correct later in the design process.

Although wireframes vary in fidelity, they usually include the main elements of a website or app. This includes the text, buttons, images and videos. They should be clear and concise, with no unnecessary information added.

Version control systems

Version control systems enable a team of software developers to collaborate on projects by keeping track of changes made to their files. This helps them avoid having to send files between each other, thereby saving time and improving productivity.

A version control system allows multiple developers to edit a file at the same time, but only the first developer to “check in” the changes is allowed to make further edits. Once the first developer finishes editing a file, the changes are then automatically merged into a single version of the file.

Most web developers use version control systems for tracking code changes in their projects. These systems are available on local servers, data centers and cloud platforms, enabling a team to share files and work simultaneously.

Testing tools

Software testing tools make it easier for a team of testers to manage test cases, run automated tests and track manual ones. They also help reduce time spent on repetitive operations and eliminate errors.

These tools allow web developers to test their applications’ functionality and design blueprint. They also check for security loopholes, which could be fixed at the early stage of development.

Some of the top tools include Applitools, Responsinator and TestComplete. All of these are designed to be easy-to-use and integrate seamlessly with existing QA tools.

Other important tools in this category include Jmeter and WebLOAD, which are used to simulate heavy load on web applications and analyze their performance. These tools are great for testing complex scenarios that involve multiple servers and different browsers, operating systems, and devices. They also provide a range of features that allow you to generate and test a huge number of load scenarios with ease.