Clipboard Not Working on Mac? Here's How to Fix It

You hit ⌘C. Then ⌘V. Nothing happens. Or worse — something you copied an hour ago pastes instead of what you just selected. The clipboard is broken, and whatever you were trying to copy might already be gone.

This happens more often than Apple would like to admit. The good news: it's almost always fixable in under a minute. Here's the full troubleshooting ladder, from quickest to most thorough.

Quick fix: kill pboard (10 seconds)

The macOS clipboard is managed by a background daemon called pboard. When copy-paste stops working, this process has usually frozen or become unresponsive. Killing it forces macOS to restart it immediately.

That's it. This fixes the problem 80% of the time. The pboard process restarts automatically — you don't need to do anything else. Your current clipboard item will be lost (the slate is wiped clean), but copy-paste functionality returns.

If you're uncomfortable with Terminal, you can also restart your Mac. But killall pboard achieves the same thing without closing 47 browser tabs.

App-level fixes

If killing pboard doesn't work, the problem might be specific to one app. Test this: try copying text from a different app (like TextEdit or Notes) and pasting into another. If that works, the issue is with your original app.

Force-quit the problem app. Press ⌘⌥Esc, select the app, and click Force Quit. Relaunch it and try again.

Check for app updates. Clipboard bugs in specific apps are often patched quickly. Some apps (particularly Electron-based ones like Slack, VS Code, or Figma) occasionally break copy-paste after macOS updates.

Try a different copy method. Some apps support ⌘C but also have Edit → Copy in the menu bar. If the keyboard shortcut isn't working but the menu item is, you may have a keyboard shortcut conflict — check System Settings → Keyboard → Keyboard Shortcuts.

System-level fixes

If the problem persists across all apps, escalate to these system-level solutions:

Check Accessibility permissions. Some apps that interact with the clipboard need Accessibility access. Go to System Settings → Privacy & Security → Accessibility and review the list. If a clipboard-related app is listed but unchecked, that could cause conflicts.

Reset NVRAM/PRAM. On Intel Macs: restart and immediately hold ⌘+⌥+P+R for 20 seconds. On Apple Silicon: this resets automatically on restart, so a normal restart is sufficient. NVRAM resets rarely fix clipboard issues specifically, but they clear other system-level glitches that can cascade.

Boot into Safe Mode. Restart your Mac and hold Shift (Intel) or follow Apple's instructions for Apple Silicon Safe Mode. Safe Mode disables third-party extensions and clears system caches. If copy-paste works in Safe Mode but not normally, a third-party app is causing the conflict.

Create a new user account. If nothing else works, create a fresh macOS user account in System Settings → Users & Groups. Log into it and test copy-paste. If it works in the new account, your user profile has a corrupted preference file. This narrows the problem significantly.

Check for conflicting apps

Certain categories of apps are known to interfere with the macOS clipboard:

• Clipboard managers (if misconfigured or crashed) — ironic, but a buggy clipboard manager can break the system it's trying to enhance
• Remote desktop software — intercepts the pasteboard for cross-machine clipboard sharing
• Automation tools (Keyboard Maestro, BetterTouchTool, Hammerspoon) — may be consuming pasteboard events
• Security software — some endpoint protection tools monitor or block clipboard access
• Virtual machines — shared clipboard features can conflict with the host

If you recently installed or updated any app in these categories, try quitting it to see if the clipboard recovers.

To check what's accessing your clipboard, you can run this in Terminal:

lsof | grep pboard

This shows which processes are connected to the clipboard daemon. If something unexpected appears, that's your culprit.

Preventing clipboard disasters

The clipboard breaking is annoying. But the real damage is losing what you copied — that paragraph you spent 10 minutes writing, the URL you needed, the image that's no longer on the page you grabbed it from.

A clipboard manager doesn't prevent pboard from crashing. What it does is save everything you copy the moment it hits the pasteboard. So when things go wrong, your history is intact.

QuietClip stores up to 1,000 items locally — text, images, and files. If the clipboard breaks and you need to restart pboard, everything you copied before the crash is still searchable in your history. No panic, no "I think I remember what I copied."

The other prevention strategy: if you find yourself regularly losing clipboard items because you accidentally copy over them, that's not a bug — that's the single-item clipboard working as designed. A clipboard manager turns that single slot into a scrollable library.

One more tip: if clipboard issues happen frequently (more than once a month), run Apple Diagnostics to check for hardware issues, and make sure your macOS is fully updated. Persistent clipboard problems can indicate memory issues or deeper system corruption.