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Commerce & MarketplacesLarge system
Auction & Bidding Platform
An eBay-style timed auction platform with live bid updates, proxy bidding, anti-sniping, and secure settlement between winning bidders and sellers.
Typically bought by: Auction houses going online, liquidators, collectors' communities, and charity auction organizers
Standard features
Always included in the base price. Every one is built, tested and delivered working.
- Auction lots with images, condition notes, reserve price and starting bid
- Timed auctions with scheduled start/end and staggered lot closings
- Real-time bid updates without page refresh
- Proxy (maximum) bidding with automatic increments
- Anti-sniping soft-close extensions
- Outbid notifications by email/push
- Bidder registration with payment method verification
- Buyer's premium and seller commission calculation
- Winner checkout and settlement (provider-agnostic payments)
- Watchlists and saved searches
- Seller consignment portal for submitting lots
- Admin panel: approve lots, manage auctions, resolve disputes
- Bid history audit log per lot
Popular custom additions
Quoted per feature in the configurator — $50 simple, $150 moderate, $300 complex.
- Live-stream auctioneer mode with floor and online bids
- Absentee/phone bid entry for staff
- Buy-it-now alongside auction
- Sealed-bid or Dutch auction formats
- Invoicing with shipping quotes for won lots
- Escrow settlement for high-value items
- Authentication/appraisal workflow for luxury goods
Tech stack
- Frontend
- Next.js + Tailwind CSS
- Backend
- Node.js with WebSocket realtime bidding engine
- Database
- PostgreSQL (Neon) + Redis for live bid state
- Integrations
- Payment gateway with card verification/holds (Stripe/PayPal/other), Transactional email (Resend/SendGrid), Push notifications, Object storage for lot media (S3/R2)