Underpin

Underpin is a lightweight Chrome extension built for people who apply to many jobs and lose track of where they have already applied. Rather than making you log every submission by hand, it watches the pages you use to apply and records each application as it happens, building a personal history of your job search without extra spreadsheets.

The extension's headline feature is duplicate detection. Because it remembers your previous applications, Underpin can warn you when a current listing matches a role or company you have already applied to, so you avoid wasting effort and avoid looking repetitive to recruiters. It also helps you focus on genuinely new openings instead of re-treading familiar ones.

Underpin runs in the background as a popup-driven extension and keeps your data private, with the developer declaring no collection or sale of user data. It is distributed through the Chrome Web Store as a free-to-install tool, making it an easy addition to an existing job-search workflow.