Web development tools allow web developers to test and debug their code. They are different from website builders and integrated development environments (IDEs) in that they do not assist in the direct creation of a webpage, rather they are tools used for testing the user interface of a website or web application.
Web development tools come as browser add-ons or built-in features in web browsers. The most popular web browsers today, Google Chrome, Firefox, Opera, Internet Explorer, UC browser and Safari, have built-in tools to help web developers, and many additional add-ons can be found in their respective plugin download centers.
The five most popular web browsers have support for web developer tools that allow web designers and developers to look at the make-up of their pages. These are all tools that are built into the browser and do not require additional modules or configuration.
The built-in web developer tools in the browser are commonly accessed by hovering over an item on a webpage and selecting the "Inspect Element" or similar option from the context menu. Alternatively the F12 key tends to be another common shortcut.
HTML and DOM viewer and editor is commonly included in the built in web development tools. The difference between the HTML and DOM viewer, and the view source feature in web browsers is that the HTML and DOM viewer allow you to see the DOM as it was rendered in addition to allowing you to make changes to the HTML and DOM and see the change reflected in the page after the change is made.
In addition to selecting and editing, the HTML elements panels will usually also display properties of the DOM object, such as display dimension, and CSS properties.
Web pages typically load and require additional content in the form of images, scripts, font and other external files. Web development tools also allow developers to inspect resources that are loaded and available on the web page in a tree-structure listing.
Web development tools also allow developers to view information about the network usage, such as viewing what the loading time and bandwidth usage are and which HTTP headers are being sent and received.
Profiling allows developers to capture information about the performance of a web page or web application. With this information developers can improve the performance of their scripts. Auditing features may provide developers suggestions, after analyzing a page, for optimizations to decrease page load time and increase responsiveness. Web development tools typically also provide a timeline features provides a record of the time it takes to render the page, memory usage, and the types of events which are taking place.
These features allow developers to optimize their web page or web application.
In the process of website development, text editors also plays an important role, without an text editor website cannot be developed. Some text editors are small and simple, while others offer broad and complex functions. The most popular text editors are:
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