How to remove bad link from website?

You can use disavow tool, it is a request to Google that tells them to moderate your website and remove the unwanted links but it will take time.

Use disavow tool to remove the unwanted spam links from your website.

Disavow tool is used to disavow links that are harmful for your website. These links are excluded from ranking your website in search engines.

There are so many tools are available online by which you can easily remove bad link from website?

The easiest way is by using the Goggle's disavow button, but such way will make your website like without backlinks. However, Google recommends you to remove the bad links manually if you were the one made the bad links as your quality backlinks will not be disavowed.

By using disavow tool in Google webmasters, you can delete unwanted and bad broken links from the website.