Where to Sell Baby Clothes When The Piles Literally Take Over

"You need to put everything on Poshmark," my neighbor Jessica told me on Tuesday morning while we were standing outside the preschool gates. "No, God, ThredUp is the only way, who has time to ship?" my sister texted me literally five minutes later when I complained about my garage. Meanwhile, the internet was screaming at me through a sponsored reel to do some sort of aesthetic Instagram closet sale, which, honestly, I'd rather eat glass than attempt. I was wearing yesterday's leggings with a mystery yogurt stain on the knee, holding a lukewarm cup of French roast, and trying to figure out what the hell to do with the six giant plastic storage bins of infant wear taking up half my garage.

Babies grow at a speed that's frankly offensive. Maya is 7 now and Leo is 4, and I swear to you I'm still finding random newborn socks stuffed in the deep, dark corners of my linen closet. The amount of stuff you accumulate in those first few years is staggering. Dave, my husband, kept walking past the bins in the garage and aggressively sighing, threatening to just drive the whole mountain of baby cloth to the nearest donation center and be done with it. But I knew there was actual money sitting in those bins. Good money. Money I could use to buy them the next size up of things they would immediately ruin.

Anyway, the point is, figuring out what to do with tiny baby clothes when you're already exhausted is a nightmare. I've tried almost every platform out there over the last seven years. Some are brilliant. Some made me want to throw my phone into the ocean.

The absolute hands-off route for when you literally can't even

If you're in the trenches of sleep deprivation and the thought of taking well-lit photos of a stained bodysuit makes you want to cry, consignment is your friend. But you've to manage your expectations.

I tried ThredUP first because I kept seeing ads for their Clean Out Bags. You just order a bag, shove all your baby clothes into it, and hand it to the mail carrier. It sounds like magic. But here's the reality check: they reject a TON of stuff. Like, easily 50% of what you send them, because their quality standards are incredibly strict. And if you're sending them fast-fashion brands that cost seven dollars brand new, they're going to pay you literal pennies. It's great for getting the crap out of your house, but don't expect to fund your kid's college tuition with it.

Then there are services like GoodBuy Gear or Toycycle. They actually vet and clean the items for you, which is amazing. They take a cut depending on the item's price—sometimes 15%, sometimes up to 90% for super cheap stuff—but they handle all the buyer communication. Which is huge, because I don't have the emotional bandwidth to negotiate over a three-dollar sleep sack with a stranger on the internet.

Hustling on the peer-to-peer apps

If you want to actually make real money back, you've to do the work yourself. I spent a whole weekend last October photographing Leo's old outfits on a white rug by the window.

Kidizen is probably my favorite for kids' stuff specifically. It's an app built just for kids' and maternity wear, and the community of moms on there's intense but very buying-focused. They take a 12% fee plus 50 cents, which isn't terrible.

Then there's Poshmark. Okay, so I actually had the Poshmark fees completely wrong the first time I tried it, and Dave had to correct me after I complained about my payout, which was incredibly annoying because I hate when he's right about math. Poshmark takes a flat $2.95 for any sale under $15, and they take 20% for sales over $15. So if you list a single, cheap, used onesie for $5, you're basically making nothing after the flat fee. You HAVE to sell premium brands or big bundles on there for it to make any sense. But their shipping is ridiculously easy—they just email you a label and you slap it on a box.

I also tried Mercari and eBay, which are fine, but mostly good for dumping massive lots. Like "15-piece 3-6 month winter survival set." People go crazy for bundles on those sites.

The hellscape of local selling

Oh god. Facebook Marketplace. Look, I know people who make a killing on Marketplace, but I simply can't handle the sheer audacity of the people on there. I listed a pristine winter coat for $10. A woman named Susan messaged me, "Is this available?" I said yes. She asked me to drive 45 minutes to drop it off at her house. For ten dollars. I politely declined, and she called me rude.

It's zero listing fees, which is nice, but you've to deal with the creepy meetups. My pediatrician really mentioned offhand at Maya's four-year checkup that if you're doing local trades, you should always use those designated 'Internet Exchange Safe Zones' at police stations. I guess some local moms had gotten scammed or something? I don't know, but it totally freaked me out. So now if I ever do sell locally, Dave has to go do the drop-off at the police station parking lot while I stay home and drink coffee.

There's also this thing called The Swoondle Society, which is a trading platform. You send your clothes in, they rate them from Level 1 to 5, and then you use those credits to "buy" clothes in the next size up. It's kind of confusing at first, but once you figure out the levels, it's a decent way to just rotate your wardrobe without spending actual cash.

Why some stuff sells and the rest rots in your basement

Here's the hard truth about selling baby clothes: fast fashion doesn't hold its value. If you buy a five-pack of thin cotton bodysuits from a big box store, they're going to shrink, pill, and get those weird, mysterious yellow milk stains around the collar that somehow appear months after you put them in storage. No one wants to buy that.

If you want to make your money back, you've to invest in sustainable, high-quality pieces from the start. Things that survive multiple children. If I list something with organic cotton or bamboo, it sells instantly. Modern parents are obsessed with safety certifications. If you can put "OEKO-TEX Certified" or "CPSIA Compliant" in your listing description, buyers will swarm it because we're all terrified of the weird chemicals in cheap clothing.

For example, taking care of delicate baby skin is a huge selling point for secondhand buyers. If you're looking to build a wardrobe that will honestly hold its resale value, you should definitely check out Kianao's organic baby essentials collection. It's better to buy fewer, better things that you can easily resell later.

Take blankets. I had a Fox Bamboo Baby Blanket that we used constantly. Bamboo is a magic fabric. It's naturally hypoallergenic, it controls temperature, and most importantly, it washes beautifully without looking ragged after three trips through the spin cycle. I listed it on Kidizen when Leo finally outgrew the swaddle phase, and it sold in under an hour for almost what I paid for it. Durability equals cash with the resale market.

The weird stuff you should and shouldn't sell

You have to be ruthless about condition. My pediatrician told me once that anything with loose buttons, weird strings, or broken zippers is a massive choking and strangulation hazard, especially for babies under three. Or maybe she said under four? Either way, the point is, if an item is damaged, don't try to sell it. Just cut it up and use it as rags to clean your kitchen counters. Safety first.

But then there are the sentimental items you think you're going to sell, and then you just... can't. For me, it was teething toys. I vividly remember sitting on the nursery floor at 3 AM with Leo. He was cutting his first tooth and screaming like a literal banshee. I was crying. He was crying. The only thing that stopped the madness was the Panda Teether Silicone Baby Bamboo Chew Toy. I practically wept with gratitude when he clamped his little swollen gums onto that food-grade silicone and just breathed. It was the perfect flat shape for his tiny hands. Obviously, you can't sell used teethers for hygiene reasons, but even if I could, I wouldn't. I'm keeping that panda in his memory box forever because I've a deeply unhealthy emotional attachment to it.

We did try other teethers that I probably would have thrown in a bundle if it wasn't gross to sell chewed-on silicone. We had the Malaysian Tapir Teether Toy, which is fine. It's supposed to be this educational wildlife thing to teach babies about endangered species. Which is a nice thought, but let's be real, a six-month-old doesn't care about global conservation efforts. Leo mostly just threw it at the dog. It's great quality, completely BPA-free, and definitely safe, but it just didn't have the magic soothing power of the panda for us.

Oh, we also had the Sushi Roll Teether Toy, which is hilarious. It looks like a little piece of nigiri. It's incredibly cute and great for photos, and the textured bits really did help massage his gums when the molars started coming in. Anyway, I digress. Don't sell used teethers. Throw them out or keep them to cry over when your kid goes to kindergarten.

The golden rule of reselling

Bundle everything. I can't stress this enough. Selling a single pair of pants online is a waste of your time and the buyer's shipping money. Group things by size and season. "Size 12 Months Fall Wardrobe: 5 Long-sleeve shirts, 3 pants, 2 sweaters." That's what tired moms searching Poshmark at 11 PM want to see. They want a one-click solution to the fact that their kid suddenly grew an inch overnight and nothing fits.

And take decent photos! Put the clothes near a window. Smooth out the wrinkles. You don't need a professional lighting setup, just don't take a blurry photo of a crumpled shirt on your unmade bed in the dark.

It takes a little bit of effort, but recouping some of that money makes the endless cycle of buying bigger clothes slightly less painful. Plus, keeping perfectly good items out of landfills is something we all need to be trying harder at, even when we're exhausted.

Before you dive into the chaotic world of reselling, make sure the new items you're bringing into your home are really worth the investment. Build a sustainable, resale-ready wardrobe by exploring Kianao's full collection of natural baby products today.

Messy, Honest FAQs About Selling Baby Clothes

Is it honestly worth the time to sell baby clothes?
Honestly? It depends on what you've. If you've a mountain of cheap, heavily worn, stained, big-box store onesies, no. Just donate them or recycle the fabric. If you've higher-end, organic, or boutique brands that are in great condition, yes, absolutely. You can make hundreds of dollars back if you bundle them right.

How do I get those weird yellow milk stains out before selling?
Oh god, the phantom yellow stains. They literally appear out of nowhere after clothes sit in a box for a year. I swear by making a paste of baking soda, blue Dawn dish soap, and hydrogen peroxide. Scrub it in with an old toothbrush, let it sit in the sun for an afternoon, and wash it on cold. It works like 80% of the time. If it doesn't work, don't sell it.

Do I really have to iron baby clothes for pictures?
I'm not ironing a size 3-month shirt, and neither should you. But you shouldn't just ball it up, either. I usually just smooth them out flat with my hands on a nice rug or a clean hardwood floor near a window. Natural light hides a multitude of sins and makes things look much crisper than they genuinely are.

What sizes sell the fastest online?
In my experience, anything over 12 months sells way faster. Babies stay in newborn and 0-3 month sizes for like, five minutes, so the market is completely flooded with tiny clothes that have barely been worn. Once kids hit the toddler years, they destroy their clothes, so finding good condition 2T or 3T stuff is harder, making it sell much quicker.

Should I wash everything before I ship it?
Yes. Please. It's just common courtesy. Wash it in a gentle, unscented detergent (because a lot of babies have super sensitive skin and strongly scented detergent can cause flare-ups). Make sure it's completely, 100% dry before you put it in a plastic mailer, or it'll smell like a damp basement by the time it reaches the buyer.