Knopsi

Knopsi is the Swiss marketplace for secondhand children's items. Buy and sell clothes, toys, furniture, books, and more – safely, easily, and sustainably. Give children's items a second life and save money.

SELLING MADE EASY
Create a listing in minutes. Upload up to 5 photos, and our AI will automatically analyze them – suggesting a title, description, category, condition, and brand. All you have to do is set the price and publish.

COMMUNICATE DIRECTLY
Chat directly with buyers and sellers using the built-in messaging system. Ask questions, arrange pickup times, or make an offer – all securely within the app, without sharing your contact information.

MAKE PRICE OFFERS
Want a different price? Simply make the seller an offer. Sellers can accept, decline, or counter offers.

RATING AFTER PURCHASE
After a successful purchase, you can rate the seller. This builds trust within the community and makes reputable sellers visible.

SAVE FAVORITES
Do you like an item but aren't quite sure yet? Save it as a favorite and get notified when the price drops.

PUSH NOTIFICATIONS
Never miss a message again. Knopsi notifies you when someone replies to your listing, makes an offer, or your item has sold.

ONLY IN SWITZERLAND
Knopsi is exclusively for users in Switzerland. All prices are in Swiss francs (CHF). Items can be picked up or shipped via Swiss Post.

FREE AND AD-FREE
No listing fees, no sales commissions, no hidden costs. Knopsi is completely free for buyers and sellers and contains no advertising.

DATA PROTECTION
Knopsi is operated in Switzerland and takes the protection of your data seriously. Your personal information will never be sold to third parties.