See what may come next.
Follow the current bid and BidBud’s estimated next bid, beside the auction. Guidance refreshes as new bids arrive, giving your next decision a starting point.
Next-bid prediction. Your strategy.
See an estimate of the next bid. Explore conservative, balanced and aggressive strategies. Keep your personal limit in view as the auction moves.
For Bring a Trailer buyers · Desktop Chrome · You stay in control

Actual development UI · Illustrative auction and model responses.
Unpublished preview; the Chrome Store interface may differ.
A plan for the next bid
The next bid is an estimate. Your strategy is a choice. Your limit stays yours.
Follow the current bid and BidBud’s estimated next bid, beside the auction. Guidance refreshes as new bids arrive, giving your next decision a starting point.
Compare conservative, balanced and aggressive suggestions. See how the suggested amount changes when you choose a different approach.
Review the estimated all-in cost, set your maximum hammer bid and lock your limit. Suggestions respect that ceiling. Every actual bid remains your decision.
Choose the approach that fits you
Switch strategies below to see the suggested bid change. Conservative uses a smaller step; balanced stays close to the estimated next bid; aggressive explores a larger step. Your maximum still applies.
Actual development UI with illustrative auction and model inputs. These controls explore recorded screens; they do not place bids. No strategy guarantees a win.



Conservative — a smaller step above the current bid.
Open the full-size product capture ↗Unpublished development preview · Illustrative amounts · Store interface may differ.
Your ceiling, through every strategy
The hammer price is only part of what you pay. Bring buyer fees, tax, shipping and repair assumptions into view before choosing your ceiling.
Lock your limit to make a later increase a deliberate choice. Switching strategy keeps that limit in place.
Compare the strategies ↑
Actual development UI · Historical practice sample · Illustrative costs

Actual development UI · Historical sample
View the evidence screen full size ↗
Evidence before confidence
Historical sales can add context, but two cars are rarely identical. Review the dates and differences. When the evidence is too thin, a missing estimate is more useful than false certainty.
BidBud supports your research. It doesn't replace an inspection, guarantee a price or make the decision for you.
Our vision / The future of auctions
We see a future where useful intelligence is part of the auction experience itself. Where next-bid estimates, adjustable strategies and a buyer’s limits come together at the moment they matter.
A clearer path from discovery to due diligence, with the context to participate thoughtfully and the confidence to stop.
A buying experience where vehicle history, meaningful differences and unanswered questions can be understood in context.
An opportunity to explore intelligence within the listing and bidding workflow, designed around the people using it.
Today, BidBud focuses on Bring a Trailer in desktop Chrome. Additional platforms and embedded integrations are future direction, not announced partnerships. BidBud is independent of auction platforms.
Before you get started
BidBud's Chrome extension supports Bring a Trailer vehicle listings on desktop Chrome. On your phone, explore the product walkthrough above, then visit this page from desktop Chrome to view the Store listing.
It estimates the next bid amount from observed bidding. It is not a market valuation, final sale price or probability of winning. Estimates can be wrong or unavailable.
The suggested step changes. Conservative, balanced and aggressive approaches let you compare amounts within your saved limit. You choose whether to act and confirm the platform’s required increment.
No. BidBud is advisory software. It does not place, cancel or automate bids. You decide whether to participate and what to bid on the auction platform.
No. Historical sales provide context, not a guaranteed value. Availability and relevance vary by vehicle. Cost estimates depend on fees and assumptions you should verify for your purchase.
The walkthrough shows the unpublished development interface with clearly labeled illustrative auction data and model responses. It previews the workflow, not prediction accuracy. The Chrome Store interface may differ.
Check the Chrome Web Store listing for the current release and its disclosures. Any future paid offer should show its price, renewal terms and limits before checkout. Read our Privacy Policy for how BidBud handles information.
The next bid is your decision
Install from desktop Chrome. Research thoughtfully. Bid on your terms.