Flagwall is a free Chrome add-on developed by Andrew Ivins that aims to help users avoid paywalls on websites. As a browser extension, Flagwall scans each page for text hyperlinks to known domains that operate a paywall. When it identifies these links, it flags them with a dotted red underline, providing users with a visual cue that the link is likely to lead to a paywall.

It's frustrating to click on a link only to be faced with a paywall, and Flagwall seeks to alleviate this annoyance by giving users the option to avoid such links altogether. By highlighting paywall links, users can make informed decisions about whether or not to click on them, saving time and frustration.

It's important to note that Flagwall does not attempt to block or bypass paywalls in any way. Instead, it serves as a helpful tool to alert users to the presence of paywall links, empowering them to choose whether or not to proceed. With its simple and straightforward functionality, Flagwall is a valuable browser add-on for those who want to avoid paywalls while browsing the web.