Clipboard Manager Extensions Compared: Which Protects Best

A clipboard manager keeps a history of what you copy so you can paste older items. That's handy, but it means a list of everything you've copied, including passwords and codes, sits somewhere. Before installing an extension for it, it's worth knowing what your system already does and what the risks are.

Built-in clipboard history

• Windows: press Win + V. Turn on clipboard history the first time, and pin items you reuse. You can also sync it across devices, which is off by default.
• ChromeOS: press Search + V (or Launcher + V) to see recent copies.
• Mac: recent macOS versions added clipboard history to Spotlight. On older versions, apps such as Maccy (free) or Paste fill the gap.

Built-in history works across all your apps, not just Chrome, which makes it more useful than most extensions.

Clipboard manager extensions

Extensions such as Clipboard History Pro add a history inside Chrome, with search, favorites and sometimes sync. Before installing one, check:

• Where history is stored. On your computer only is safer than synced to the developer's servers.
• Whether you can exclude sites or clear history automatically.
• Permissions. A clipboard extension that also reads all websites sees a lot.

The other risk: websites reading your clipboard

Separately from managers, websites can ask to read your clipboard. Chrome asks permission for most of this, but it's easy to click Allow without thinking. A malicious page could read a password or crypto wallet address you just copied. Clipboard Guard blocks websites from reading your clipboard and asks you each time whether to allow it once or always for that site. It's protection, not a manager: it doesn't keep a history.

Keeping copied passwords safe

• Let your password manager fill passwords instead of copying them. Most can clear the clipboard automatically after copying.
• Pause or clear your clipboard history after copying something sensitive. On Windows, open Win + V and delete the item, or clear all.
• Don't sync clipboard history across devices unless you need it.
• Check what sites can access in Settings → Privacy and security → Site settings, under Clipboard.

Which to choose

• Most people: your system's built-in history, plus Clipboard Guard if you want control over websites.
• Heavy Chrome users who want history inside the browser: an extension that stores data locally.
• Copying sensitive data often: skip history entirely, and use a password manager.