The Best 100% Harmless Pranks to Pull on Your Friends (Tested and Approved)

If you’ve landed here, I’m guessing you’re looking for pranks that make people laugh without ruining their day. Same here. Honestly, the internet is full of borderline mean tricks, and I’ve always thought, “Why ruin friendships when you can just create a tiny moment of chaos and then laugh together ?”
So I dug into my own experiences (et yeah, a couple of fails…) and tested a fresh batch with friends during a weekend hangout in Portland. Here’s the selection that survived the “okay-that-was-funny-but-never-do-that-again” test.

And by the way, if you love discovering quirky ideas or just browsing cool content during your morning coffee, I sometimes end up reading things on https://goodsurf.fr. Totally random connection, but hey – inspiration shows up where it wants.

1. The “Bluetooth Speaker Behind the Couch” Trick

This one is ridiculously simple and honestly works every time. Hide a small Bluetooth speaker behind a couch cushion, under a shelf, or behind a plant. Then play soft, harmless sounds – like a cat meowing or a door creaking – but really quietly.
The key is not to overdo it. I swear, my friend Lila spent a solid 5 minutes going, “Does your building make… noises ??” before realizing it was me. Zero damage, maximum confusion.

2. Harmless Fake Loading Screen on Their Laptop

Ever tried using a fake “Windows Updating – Do Not Turn Off” full-screen website ? It’s priceless. You just need 20 seconds alone with their computer.
When I tested it, my buddy Sam froze like he had just deleted the nation’s tax records. After three seconds of panic, he went, “Wait. This is you, isn’t it ?”
Yes Sam. Yes it is.

3. The Classic “Wrong Flavor” Snack Swap (But Gentle !)

No, I’m not talking about filling an Oreo with toothpaste – that’s just annoying and honestly tastes awful.
I prefer swapping flavors within the same snack family : like exchanging the yogurt in their fridge for another one with a weird-but-edible flavor (I once replaced peach with coconut-lychee – the confusion on my friend’s face was magical).
It’s silly, safe, and gives you five seconds of “wait… what ?”

4. Sticky Note Avalanche – The Mini Version

Forget the massive sticky-note office pranks you see on TikTok. Those take hours and waste mountains of paper.
Instead, place about 8–10 sticky notes on the inside of a cupboard door. When they open it, they’ll gently flutter out like colorful snowflakes.
Nothing breaks, nothing gets messy, but there’s a tiny “ah !” moment that makes the whole thing worth it.

5. The Silent Ringtone Swap

If your friend leaves their phone lying around (unlocked… it happens more often than you think), change their ringtone to something goofy – but soft. I once switched my roommate’s ringtone to a calm ocean wave sound.
For two days he kept asking, “Do you hear water somewhere ?”
No chaos. Just vibes.

6. Frozen Cereal – The Surprisingly Successful One

This one is a breakfast classic. The night before, pour a bowl of cereal with milk, stick it in the freezer, and then casually serve it the next morning.
The spoon not moving ? Pure comedy.
My only advice : don’t do it when they’re late for work, unless you want to be unfriended before 9 AM.

7. The Fake Bug (But Choose the Bug Wisely)

Fake spiders are overused and can genuinely freak people out. I prefer the fake ladybug or fake beetle approach – small, cute, just realistic enough to get a “what the-?” but not a scream.
Stick it on their lamp or near the keyboard. The moment of hesitation is delicious.

8. Auto-Correct Mischief (Responsible Edition)

On their phone or computer, change one auto-correct rule. Just one.
For example :
“okay” → “okey dokey”
Make sure it’s funny but not embarrassing. When I tried this on a friend, he sent “I’ll be there at 6, okey dokey” to his boss. Thankfully the boss had humor. I retired that prank immediately.

9. The Invisible Tape on Remote Sensors

Tiny piece of transparent tape over the TV remote’s infrared sensor. That’s all.
It doesn’t break anything, doesn’t trap anyone in technology hell, but gives you a good 20–30 seconds of “why isn’t this thing working ??”
Just don’t do it during a big game or season finale – unless you enjoy danger.

10. The “Voice Assistant Slightly Louder Than Usual” Trick

If your friend has a smart speaker, ask it (quietly) to increase the volume by one or two levels. Not 10. Not 30. Just one or two.
Then sit back.
Next time they ask the assistant something harmless like “What’s the weather ?”, it will answer just a bit too loudly, and they will stare at the device like it has betrayed them.

How to Keep Your Pranks Fun (And Not Regrettable)

Quick checklist I always follow :

  • No mess that someone else has to clean up.
  • No ruining food (freezing cereal is the exception – fight me).
  • No emotional traps, no “fake emergencies”, nothing stressful.
  • And definitely no breaking or hiding belongings.

A good prank should feel like a shared laugh, not a punishment. If you’re not sure your friend will find it funny… maybe skip it. Or test it on someone with a known high tolerance for nonsense (we all have that one friend).

Final Thoughts

Honestly, harmless pranks are an underrated way to add a bit of chaos – the fun kind – to everyday life. Nothing mean, nothing messy. Just tiny surprises that make stories you’ll laugh about later.
If you try any of these, tell me : which one landed best ? And which one totally flopped (because, let’s be real, sometimes they do) ?