Live auctions online come in two very different shapes. One is the traditional saleroom with an auctioneer calling lots while online bidders join in real time. The other is the Whatnot-style stream, where a seller on camera runs rapid-fire auctions to a chat full of viewers. Both are “live auction websites”, and they need different technology.
Here’s how each model works, what you need to build one, and how to keep the bidding fast when hundreds of people are watching the same lot.
TL;DR: creating a live auction website
- Choose your model: saleroom simulcast or streamed live selling
- Get a real-time bidding engine that pushes bids to every viewer in under a second
- Add live video, through a streaming provider rather than your own servers
- Build the clerk or seller console that runs the sale
- Set up card-on-file checkout so winners are charged automatically
- Test with real load before your first sale
Our auctioneer software includes live simulcast bidding, real-time updates and auto-invoicing on a one-time license from $899.
Two kinds of live auction
| Saleroom simulcast | Streamed live selling | |
|---|---|---|
| Who runs it | Auctioneer and clerk | A seller or host on camera |
| Typical lot time | 30 seconds to 2 minutes | 10 to 30 seconds |
| Bidders | Room, phone and online together | Online only, often in a chat |
| Typical goods | Estates, art, equipment, cars, livestock | Cards, sneakers, collectibles, fashion |
| Key feature | Clerk console in sync with the floor | Low-latency video plus chat |
| Examples | LiveAuctioneers, Proxibid | Whatnot, eBay Live |
Most auction houses want the first. Most collectibles sellers want the second. Some businesses, like car and equipment dealers, mix them: timed online auctions most of the week and a live streamed sale on Saturdays.
The real-time bidding engine
This is the heart of it. When someone bids, every other viewer has to see the new price almost instantly, and the server has to process bids in the exact order they arrived, even when fifty land in the same second.
That means persistent connections (WebSockets or similar) instead of page refreshes, a bid queue that locks each lot while a bid is processed, and a clear record of every bid with a timestamp. When an online bid and a floor bid arrive together, the auctioneer decides, and the system records it.
Also plan for dropped connections. If the saleroom’s internet drops for thirty seconds, the sale state has to survive and resume cleanly. Our guide to building a site like LiveAuctioneers covers the clerk-sync side in more depth.
Adding live video
Don’t stream video from your own servers. Use a streaming provider or a low-latency video service, and embed the player next to the bid panel. For saleroom sales, a few seconds of video delay is acceptable because bids are driven by the clerk’s console, not the picture. For streamed live selling, latency matters much more, since the host is reacting to bids in real time, so pick a low-latency option.
The audio is often more important than the video. Bidders want to hear the auctioneer’s call clearly. A decent USB microphone beats a better camera.
The clerk or seller console
For saleroom sales, the clerk needs a screen that shows the current lot, online bids as they arrive, and buttons to record floor and phone bids, advance the lot and mark it sold or passed. For streamed selling, the host needs to start a lot, set a short timer, see bids and chat, and move to the next item in one tap.
This is where many DIY builds fall down. It looks simple and isn’t, because the console has to stay in step with every bidder’s screen.
Payments and checkout
Live sales move fast, and chasing winners afterwards kills margin. Require card-on-file at registration, charge or invoice automatically when the lot closes, and add the buyer’s premium and tax on the invoice. For high-value lots, take deposits or set bidding limits. For collectibles streams, combine wins into one shipment per buyer.
What it costs
A custom live auction platform with video, clerk console and payments usually runs $60,000 to $200,000 or more from scratch. Starting from licensed software with live bidding built in, you pay for the platform once and spend the budget on video, branding and the parts specific to your sales. See how much an auction website costs for the full breakdown.
Live auctions on your own platform
Our auctioneer software runs timed and live simulcast auctions on the same install, with real-time bid updates, live leaderboards, proxy and absentee bids, soft close, bidder deposits, outbid alerts and auto-invoicing with your own buyer’s premium. Live simulcast A/V is part of the standard feature set, and the white-label mobile app adds push notifications for bidders.
It’s a one-time license ($899, $1,999 or $2,999) on your own server. The Professional and Enterprise tiers include custom development hours, typically used for streaming integration or a custom clerk layout. Building Whatnot-style live selling? See how to build a site like Whatnot and Whatnot alternatives.
Run live auctions on your own site
Try the live demo, compare license options, or tell us how your sales run and we’ll scope the setup.
Frequently asked questions
How do I create a live auction website?
Choose saleroom simulcast or streamed selling, start from software with a real-time bidding engine, embed live video from a streaming provider, set up a clerk or host console, and require card-on-file so winners pay automatically.
What is a live simulcast auction?
A live auction run in a saleroom where online bidders bid in real time alongside the room and phone bidders. The clerk’s software keeps everyone in sync.
Can I add live video streaming to my auction website?
Yes. Embed a player from a streaming or low-latency video service beside the bid panel. For saleroom sales a few seconds of delay is fine. For streamed selling, use a low-latency option.
What are the best live auction apps?
For collectibles, Whatnot leads streamed live selling. For traditional auction houses, LiveAuctioneers and Proxibid carry live simulcast. Our best auction apps list compares more.
How much does live auction software cost?
Hosted platforms usually charge commission or per-sale fees. A self-hosted license like ours is a one-time $899 to $2,999. A custom build typically starts around $60,000.
Can I run live and timed auctions on the same site?
Yes, and many houses do. Ours runs both from one admin. Talk to our team about your mix.
