WinningBidder.com offers low cost online auction software tailored for fundraising purposes. Our user-friendly software ensures that event organizers can initiate an auction within minutes, while maintaining a rich array of features. Bidders can take advantage of features such as maximum bidding, outbid alerts, and dynamic "popcorn" bidding.
Rather than requiring bidders to download an app, our approach involves sharing a personalized auction URL with supporters. This enables them to explore listed items and place bids using any device. The system operates at remarkable speed, making it particularly suitable for events held in areas with unreliable connectivity, such as charity golf outings.
WinningBidder.com imposes no restrictions on the quantity of items, bidders, or events, making WinningBidder.com the ideal solution for all your online auction requirements throughout the year.
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Since 2012, AuctionMethod has provided white-label auction software and custom auction software development for the auction industry. Based in Massachusetts, serving the U.S., Canada, Australia, and New Zealand. AuctionMethod serves auctioneers, estate liquidators, farm and heavy equipment, industrial, salvage and recycling, non-profit, corporations, retail liquidators, auto/car dealers, real estate, arts and collectibles, and single-use auction businesses.
AuctionMethod is the winner of the SourceForge Spring 2026 Top Performer Award in Auction Software, and is rated 4.9/5 on Capterra and SourceForge. AuctionMethod's model includes no commissions, no per-lot fees, no platform skim, and no contract, so clients keep the revenue from every sale instead of splitting it with the platform. Clients keep 100% ownership of their bidder lists, seller lists, item data, images, and transaction history on a fully white-label auction website.
The platform covers catalog and lot management, consignor setup, bidder registration, invoicing, payment processing, tax handling, and reporting in one system. Auction event types include timed online auctions, simulcast auctions, blind timed auctions, catalog-only, fixed-price, and perpetual events. AuctionMethod includes a mobile app for iOS and Android, and reports a 94% renewal rate. For operations whose workflows fall outside the standard product, AuctionMethod also builds custom auction software development solutions at a fixed rate. AuctionMethod's pricing starts at $100/mo with a $250 one-time setup charge. AuctionMethod offers a 30-day free trial, no credit card required.
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GiveSmart
GiveSmart by Momentive Software is a comprehensive fundraising platform tailored to nonprofits, schools, and mission-driven organizations seeking to streamline donor management and event fundraising. It combines mobile bidding, silent auctions, ticketing, and peer-to-peer fundraising into one easy-to-use system that supports both virtual and in-person events. The platform features integrated payment processing, text-to-donate, and embeddable fundraising campaigns to create seamless giving experiences. GiveSmart automates donor tracking, engagement, and acknowledgment, helping organizations increase retention and maximize fundraising ROI. With support for unlimited campaigns and users under one contract, it simplifies administration and reduces costs. GiveSmart is trusted by over 8,000 organizations, including well-known nonprofits and schools, and has helped raise billions in donations. Its intuitive interface, detailed reporting, and expert customer support empower teams to run successful fundraisers. The platform integrates smoothly with other Momentive Software solutions, creating a unified ecosystem for nonprofit management.
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AuctionWorx Enterprise
AuctionWorx by RainWorx Software is a cloud-based online auction platform optimized for desktops and mobile devices.
Offering two editions of their popular auction software:
AuctionWorx Enterprise focuses on individual listings rather than scheduled auction sales. It is intended for running a marketplace with listings all closing at different times, but it can also be configured for a single seller without the need to organize listings into auction events.
AuctionWorx: Events Edition enables you to run scheduled timed auction sales. Each event or auction sale contains a catalog of lots that share information such as scheduled start date and organized ending times. Upcoming auction sales are displayed on the homepage and each can be browsed separately.
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