Why I built a clipboard manager that never leaves your device

Every clipboard manager I tried wanted an account, a cloud sync, or both. I copy passwords, card numbers, and work notes dozens of times a day, and I did not want any of that leaving my machine just to get a searchable history.

So I built one that does not try.

Clipboard History is a Chrome extension (Manifest V3). It watches copy and cut events on pages you have allowed, keeps a local, searchable history, and lets you pin items, tag them, and click to copy back. That is the whole feature set. There is no floating widget and no account screen.

The part I am most proud of is what it refuses to store. Password fields, card numbers, card security codes (CVV), expiry dates and one time codes are never captured, even with full page access granted. That includes a card number inside a longer line of text and a code copied from an email or a text message. You can also pause capture or exclude a domain entirely.

Everything lives in chrome.storage.local. There is no account and no server, nothing syncs, and the extension ships with a content security policy that blocks every network connection (connect-src 'none'). So this is not a claim you have to trust. It is written into the extension itself and checked by its release check, which passed 121 of 121 on 12 Oct 2026, the network block included.

Export and import are plain JSON, so your history is yours to move or back up whenever you want.

Clipboard History is free on the Chrome Web Store. Its page on this site shows what it never saves, what each permission is for, and every release. I am happy to answer questions about the capture logic, the sensitive field detection, or why I skipped cloud sync on purpose: write to info@pankovs.com.