How To Block or Unblock Someone on WhatsApp Across Devices

Getting rid of those annoying messages on WhatsApp isn’t always straightforward, especially with all the different platforms and settings. Sometimes it feels like a game of hide-and-seek just to figure out how to block or unblock someone, whether you’re on an iPhone, Android, or your computer. The good news is, once you get the hang of it, it’s pretty snappy — no endless frustration. Plus, you can unblock them just as easily if you change your mind later. This walkthrough should clear things up on all the common devices and helps you take control of who can bother you.

How to Block Someone on WhatsApp

Blocking someone stops their messages, calls, and even sees your status or profile pic. It’s handy when spam, nosy exes, or just people you don’t want to talk to anymore come up. Both methods—inside the chat or through privacy settings—are built into WhatsApp, so it’s mostly a matter of choosing what’s faster or easiest depending on the situation.

Block on iPhone

From the Chat

  • Fire up WhatsApp.
  • Head into the chat of the person you want to block.
  • Tap their name on top to open their profile info.
  • Scroll down to find and tap Block Contact.
  • Confirm by hitting Block. Done.

Alternatively, you can block directly from the chat list — just long-press the chat and choose Block.

From Settings

  • Open WhatsApp.
  • Head into Settings (bottom right).
  • Tap Privacy.
  • Scroll to find Blocked.
  • Hit Add New and select the contact you want to block.

This way, you can block folks without even opening their chat. Might come in handy for those persistent contacts.

Block on Android

Android’s a bit different, but on the surface still pretty easy.

From the Chat

  • Open WhatsApp and your chat with the person.
  • Tap the three dots in the top-right corner.
  • Choose More, then Block.
  • Confirm by tapping Block again.

If needed, you can also report the contact — because sometimes blocking isn’t enough.

From Settings

  • Open WhatsApp.
  • Tap the three dots in the top-right, then go to Settings.
  • Hit Privacy.
  • Navigate to Blocked Contacts.
  • Tap the Add icon at the top right and pick the contact.

Block on WhatsApp Web or Desktop

Because of course, even on your computer, you can manage these pesky contacts.

  1. Open WhatsApp Web or the Desktop app.
  2. Find the chat with the person you want to block.
  3. Click their name at the top of the chat.
  4. Scroll down and hit Block.
  5. Confirm the action — because yes, WhatsApp makes you click multiple times sometimes.

Blocking here stops their messages and calls on the desktop too, which is handy for those long work days or late-night scrolling.

What Actually Changes After Blocking?

Once you block someone, they’re basically ghosted. No messages, calls, or visible updates from them. Their messages will sit undelivered with just one gray check mark, and their calls won’t go through. Your Last Seen, Online status, and profile updates go dark to prevent them from stalking your activity.

For some—especially those who just want peace—the effect is immediate. But honestly, sometimes you gotta give it a minute or restart the app — because of course, WhatsApp has to make it harder than necessary.

Remember, blocking only impacts WhatsApp. Anyone with your phone number can still call or SMS you outside of WhatsApp unless you block those too.

How to Unblock Someone on WhatsApp (iPhone, Android, Web)

If the blocking was a bit too much, or you’ve changed your mind, unblocking is pretty straightforward — just a few taps away.

Unblock on iPhone

  • Open the blocked chat.
  • Tap the contact’s name at the top.
  • Scroll down and tap Unblock Contact.

This method is useful if you want to unhide the chat quickly or decide to resume contact without digging through settings.

From Settings

  • Open WhatsApp.
  • Go to Settings, then Privacy.
  • Tap Blocked.
  • Swipe left on the contact and tap Unblock.

Unblock on Android

  • Open the chat.
  • Tap Unblock at the bottom of the conversation.

Or via the settings: go to Settings > Privacy > Blocked Contacts, find the person, and hit Unblock.

Unblock on Web/Desktop

  • Open the chat, click the name.
  • Select Unblock.

Or, head into Settings > Privacy > Blocked contacts and select the person to unblock. Easy enough, especially if you’re trying to clean up your list.

Final Thoughts

Blocking someone isn’t rocket science on WhatsApp, but it’s definitely essential for maintaining peace and privacy. Whether on iPhone, Android, or desktop, it’s quick to execute, and unblocking is just as simple if you decide to let someone back in. Just remember that blocking doesn’t mean blocking your phone number, so persistent jerks can still reach you outside WhatsApp unless you block their number there too. So, depending on the situation, pick the method that suits your mood and platform.

  • Know how to quickly block or unblock people.
  • Remember that blocking only affects WhatsApp, not your entire phone number.
  • Keep in mind that sometimes the app or device needs a restart to fully process the change.

Hopefully, this makes managing contacts a little less frustrating. Good luck blocking or unblocking whoever you want gone or back — whichever applies.