Free SimplyWallSt is a Chrome extension developed by Deniz Durmus that aims to liberate users from paywalls on simplywall.st. This free tool allows users to access paywalled content after the trial period ends. By logging into their simplywall.st account and visiting any stock page, users can right-click on an empty area of the page and select "Free SimplyWallSt" to unlock the content.

If users encounter issues where the paywall persists, a simple refresh of the extension and the page can resolve the problem. The developer advises users to report any such issues for prompt resolution. It is worth noting that encountering the same paid plan screen can be addressed by following the aforementioned steps each time it appears.