W3Schools has helped me immensely over the years, whether I was merely messing around with some coding on my own, or even for designated school projects, W3schools helped me pass my programming class with a perfect 100%.
Let's delve into the actual content of the website. W3Schools sports full, in-depth tutorials on around 30 different languages. Quite a bit of coding to choose from! The most significant for me have been HTML, CSS, and JavaScript. If you don't understand the context of the coding or how it would look, they even have programmed examples with an option to look at them and change the coding live to see how it affects the output.
W3Schools also has several other useful tools, such as a hexadecimal color picker, and full references for every single programming language they cover. I have used both of these tools and found them extremely helpful.
A lot of people reviewing this website seem to be missing a few points of the website, so let me run over some complaints.
Amanda J. Says that W3Schools offers "fake certificates."
This website is not meant to meant to be used as a formal education. The certificates on this website aren't meant to have business value but are only supposed to show you completed the course in a fun way. This is similar to the way Code.org gives a "certificate" after completing a course. You aren't going to get college credibility for completing the Minecraft game on Code.org. You need to understand the internet better.
Several people have also complained that the information on the website is outdated.
Rather than reporting the error on their website. With the "report error" button. Yes, if you scroll down to the bottom of a page that you happen to find incorrect, then you will find the magical "report error" button. See photos for proof. Still, I have personally never really encountered but 1 or 2 errors in W3Schools, and it would help if people would use photographic proof in the reviews to show these errors they are talking about.