Every dan, thousands of users search the Internet and a part of them have some kind od disability. To enable them the same access to the web content as the people without disabilities, designers and programmers apply special tools for the adjustment of web sides on their web pages. In every technically developed country in the world a law on accessibility is enforced in which directions on how to make the access of web pages for people with disabilities easier is given. As well as special web page design, assistive technologies outside of the Internet are also needed for that group of people. Every one of these groups have their own kind of assistive technology which helps them browse the web. However, the tools on the web sites do not give advantages only to the people with disabilities. There are some situations in which they are used by people without disabilities as well. Although there are web pages with tools for adjusting the page, there are also pages on which they need to be implemented.