You’ll find tools for popular Web browsers like Firefox and Internet Explorer. In this article, we explore some of the most popular and useful in-browser Web development tools. In-browser tools vary greatly in the jobs they perform for example, some of them help you diagnose issues with CSS, HTML and JavaScript, while others evaluate the accessibility of your website. Though add-ons and extensions aren’t just for Web development, many of them out there are designed specifically for Web developers.
These in-browser tools are commonly known as add-ons or extensions. There are many useful Web development tools that integrate in your browser.