So what does "curb alert" actually mean?
A curb alert is a heads-up that someone just put free stuff on the curb. Somebody drags a dresser out to the sidewalk, takes a photo, posts "CURB ALERT: dresser, corner of 5th and Elm, free," and whoever gets there first takes it home. No haggling, no money, no pickup window. The item sits there until someone claims it or the trash truck does.
The phrase came out of online communities. Plenty of cities have a curb alert subreddit, Craigslist's free section is full of titles that start with it in all caps, and local Facebook groups and Buy Nothing groups use it constantly. Nobody owns the term. It stuck because it's two words and it tells you exactly what to do, which is go now.
The first one I ever chased was a Craigslist post in 2017 promising a "solid oak" dining table. I drove twenty minutes in my roommate's Corolla. It was particleboard with a wood-grain sticker, and one leg was held on with a bungee cord. I took it anyway, because I was twenty-four and had no table. That trip taught me most of what's below.
Where curb alerts show up
Reddit is the loudest. City curb alert subs move fast and the regulars are good at photos, though the comments fill up with "gone?" within an hour. Craigslist free is older, messier, and weirdly reliable for big furniture, because the people posting there are often older homeowners clearing out a garage. Facebook groups and Nextdoor are hyperlocal, which is great, but half the posts are buried under arguments about leaf blowers.
Buy Nothing is its own thing. It's built around giving to a specific neighbor, so a lot of posts there are "comment if you want it" rather than true curb alerts. Lovely community, slower pace. Then there are map-based apps like CurbSofa, where the alert is a pin with a location instead of a post in a feed. I'm obviously biased, but I'll explain below why I think that difference matters more than it sounds.
Why most curb alerts are already gone when you see them
It's a timing problem, and it's brutal. Last spring I saw a post for a teak credenza on a Saturday morning. Posted 41 minutes earlier. I was out the door in four minutes and made it there in twelve. A guy in a Tacoma was strapping it down as I parked. He waved. I did not wave back with enthusiasm.
Feeds are the core issue. A post scrolls off the screen in an hour, so you only see it if you happen to be looking at the exact right moment. Most posts also have no map. "Free couch near the park" could be three blocks away or across town, and you burn ten minutes in the comments figuring out which park. And almost nobody comes back to say an item is gone, so the feed fills up with ghosts. You end up chasing stuff that was claimed before you even opened the app.
None of that is anyone's fault, exactly. It's just what happens when a format built for chatting gets used for something time-sensitive and physical.
How to get curb alerts near you right now
If you searched "curb alerts near me right now," here's my honest answer: stop scrolling feeds and look at a map. Open the CurbSofa map and you see what's been posted around you, where it is, and roughly how long it's been out. Distance is the thing a feed never gives you, and distance decides whether you get the chair.
If you're on Android, turn on nearby alerts in the CurbSofa app. Your phone buzzes when someone posts free stuff close by, which flips the whole dynamic. You stop checking and start getting told. I set my radius small at first and regretted it, because I missed a perfectly good bookcase a mile and a half out. Start wider than you think and tighten it if it gets noisy.
Not on Android, or don't want the pings? Find your city page on curbsofa.com and sign up for email alerts. Email is slower than a push notification, so it's better for planning a weekend run than for sprinting out the door, but it beats missing everything.
Then there's timing, which no app fixes for you. The night before bulk trash pickup is prime time in a lot of neighborhoods. So are the last few days of the month, when leases turn over and people panic about what fits in the U-Haul. College towns in May are absurd. Early mornings beat afternoons, since overnight posts haven't been picked through yet. And check the weather. A curb alert for an upholstered armchair posted after a night of rain is an alert for a wet sponge.
How to post a curb alert people can actually use
If you're the one giving, a good alert takes about ninety seconds and saves strangers a lot of wasted gas. Take a real photo in daylight, from far enough back that people can judge the size. Give the exact spot, like "in front of 412, by the blue recycling bin," not "my street." Say what it actually is and be honest about the flaws. "IKEA Hemnes dresser, one drawer sticks, top has a water ring" gets the right person. "Nice dresser" gets six people who all leave disappointed.
Say when you put it out, too. "Out since 7am" tells people how fresh it is. And when it's gone, mark it gone. On CurbSofa that's one tap. On Reddit or Facebook, edit the post or delete it.
I learned that last one the embarrassing way. I put out a bookshelf on a Sunday, it disappeared within an hour, and I forgot about the post. That evening a woman texted me a photo of my empty sidewalk with the caption "?" She'd come from two neighborhoods over. I apologized and have marked every item gone since.
Curb alert etiquette
Don't post stuff you haven't seen. Spotting something from your car and posting it is fine if you say so, and say when. "Saw this driving by around 5pm, didn't check condition" is honest. Passing along a screenshot of someone else's three-day-old post as if it's new is how people end up staring at an empty curb.
Don't hoard. If there are six matching chairs and you need two, take two. I know people who grab everything "to flip later," and I think it quietly kills the goodwill that makes curb alerts work. Somebody else on your block needed those chairs.
Stay on the curb. If it's on a porch or in a driveway, it isn't a curb alert, so knock or leave it. Keep the spot tidy if you're picking through a pile, and if you take half of a bed frame, take all of it. Nobody wants to explain stray rails to their landlord.
And update when it's gone, whether you posted it or grabbed it. A comment that says "picked up, thanks!" takes two seconds and saves the next person a drive. Curb alerts only work when people are a little considerate. Most of them are, which still surprises me.