Amplifier — Substack Cookie Sync is a Chrome extension designed to enhance the workflow for content creators using Substack. This free tool allows users to sync their Substack session to Amplifier with a single click, enabling direct posting and scheduling of Substack Notes without the need for manual copy-pasting. Key features include smart scheduling for queued posts, support for sharing and commenting on other posts, and the ability to include image attachments in your content. Additionally, it bypasses certain security checks, ensuring that posts appear as legitimate browser requests.

To utilize the extension, users must sign into Substack in their browser, click the Amplifier extension icon, and sync their Substack cookies to Amplifier. The extension prioritizes user privacy and security by only accessing cookies upon explicit user action and requiring secure authentication. It is particularly beneficial for content creators and marketers aiming to optimize their Substack articles for social media across multiple platforms.