Markers
Add mark‑as‑seen buttons to Product Hunt and other sites with a Chrome extension
Markers is a Chrome extension that adds a convenient 'Mark as Seen' button to Product Hunt and select other websites. When you mark an item, its appearance changes and the link is saved securely in the cloud, syncing across devices. The first 100 marks are free, with paid plans for unlimited use. Simple, privacy‑focused, and designed to streamline your browsing workflow.