Post 1 LEGO Set and get 3 months free. Post 2 and get 6 months free. Post 4 LEGO sets and get a full year free. SwapASet is the LEGO Set swap marketplace for families and adult builders. Ages 2 to 100+.
Scan the barcode, confirm your LEGO Set is complete with the original box and instructions, and go live in seconds.
Earn 1 to 5 Brick Credits the moment your set goes live — based on its retail value.
Use your credits to request any LEGO Set in your tier or lower, then the member ships it to you.
Always something new waiting to be built.
Your set's retail value decides how many Brick Credits you earn — and what you can request. Fair trades, every time.
You can always request a set in your tier or lower. Save your credits to reach a bigger build.
Kids finish a LEGO Set in a weekend and want something new. SwapASet keeps the excitement going without the constant expense of buying new sets.
You just finished a $400 Technic build. Now what? Swap it for your next challenge. City, Botanical, Star Wars, Icons — always something new to build.
Every LEGO Set listed on SwapASet is certified complete with all pieces, the original box, and all instruction booklets — original or printed. If anything is missing on arrival we order replacement pieces directly from LEGO — up to $5 per swap, on us. No Facebook Marketplace anxiety. No arguing with strangers.
Cancel or change plans anytime. Every plan includes access to the full catalog.
Swapper membership is $4.99/month. Your card is saved at signup but you are not charged until your free period begins. After your free period your membership continues automatically at your chosen rate.
Claim Your Founding Member Offer →