See it in the extension store
Price tracking
Unified price history with trend indicators across supported sites.
Price tracking and shopping assistant
AuctionMate is a browser extension that tracks prices, alerts you to changes, and keeps your watch lists tidy across marketplaces. It is a shopping assistant that changes the way you track online listings.
Secure & private by design
- Real-time price history and deltas
- Instant change alerts and background checks
- Multi-platform offer tracking, filters, exclusions, notes, and more
- Minimal permissions, encrypted requests
Key features of AuctionMate
Full control over prices and notifications – completely for free. See Pro features for tags, filters, percentage changes, and more.
Alerts
Browser and push alerts when prices on your watched listings change, so you never miss an update.
Notes & highlights
Attach notes, highlight locations or titles, and keep your own signals.
Exclusions
Hide clutter and resurface only the listings that matter. Excluded items won't appear in site search results and can be restored at any time.
Background checks
Background checks run in the background, even when you are not browsing listings.
How does the extension work? – See AuctionMate in action
Media preview
Trust and transparency
No third-party trackers or profiling — you stay in control.
Privacy-first
AuctionMate respects your privacy. The extension only analyzes information visible on the page and uses it solely to provide its features. To ensure maximum safety, it does not initialize on confidential pages, such as login, account, or order pages, and so on.
Minimal permissions
User-controlled features with minimal permissions; you can change or disable checks anytime.
No data manipulation
Transparent updates, no data manipulation. What you see is exactly what happens.
AuctionMate by the numbers
Measured across the live user base; refreshed frequently.
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Happy users
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Supported platforms
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Added price entries processed daily
Frequently asked questions
Which marketplaces does AuctionMate support?
AuctionMate supports a wide range of platforms, including: Amazon, eBay, OLX, Vinted, Allegro, Kleinanzeigen, AutoScout24, MediaMarkt, X-Kom, Otodom, Otomoto, Adresowo, Empik, Gumtree, Copart, and IAAI. This list is constantly being updated as we add support for more platforms.
Which browsers does the AuctionMate extension support?
AuctionMate currently works on: Google Chrome, Firefox, Brave, Opera, Edge and Vivaldi.
Is AuctionMate free to use?
Yes! The core features of AuctionMate are completely free. For power users, we offer a Pro version that unlocks advanced capabilities like percentage price changes and smart exclusions.
How do I receive alerts about price changes?
Enable browser notifications to receive push alerts, or open the AuctionMate panel which includes Alerts section. We only notify you about changes in listings you're watching.
How do I install AuctionMate extension?
Open your browser’s extension store and add AuctionMate. After it’s installed, visit any supported site — AuctionMate starts automatically and helps you track the best deals.
Why is it called AuctionMate?
The name “AuctionMate” originates from the plugin’s initial function – a tool supporting auctions, primarily Copart and IAAI. Over time, we saw the potential to expand functionality to various platforms – not just auctions, but also “buy now” stores and classified ad services like OLX or Vinted. Today, AuctionMate supports a wide range of offers, ads, and products, making it easier to track prices and manage online shopping.
Reviews
Feedback from users who rely on price accuracy and privacy (collected from Firefox, Chrome, and Edge web stores).
AuctionMate user on Google Chrome
Great idea, congratulations and best of luck!
AuctionMate user on Firefox
The best extension for tracking changes on classifieds and marketplace sites!
AuctionMate user on Google Chrome
Perfect for anyone who wants to stay organized and save time.
AuctionMate user on Firefox
I recommend the extension — it greatly simplifies tracking prices across many portals. [...]
AuctionMate user on Google Chrome
Recommended. You can see the potential in the extension. It works on Allegro and X-kom.
AuctionMate user on Google Chrome
AuctionMate simplifies browsing classifieds and online auctions by giving users more control and automation through an intuitive interface with price tracking features. [...]
Do you have a question about tracking prices or how the tool works?
We love feature ideas and bug reports. Drop us a line and we will get back to you.
[email protected]Support AuctionMate
Your support helps keep the project running and contributes to its further development.
Ready to try AuctionMate?
See it in the extension storeAuctionMate runs on desktop browsers only (Windows, macOS, Linux). Mobile browsers aren't supported.
AuctionMate Pro – Unlock Advanced Capabilities
Enhance your browsing with AuctionMate Pro and gain access to features designed for true bargain hunters:
Price Changes in Percentages
Clear percentage differences instead of simple arrows – for faster decision-making.
Smart Exclusion
Automatically filter listings based on your own defined rules and highlights. Excluded items will no longer appear in search results and can be restored on demand.
Seller Highlighting
Instant identification of trusted or prominent sellers based on defined criteria.
Enhanced Management
Easily filter and sort your watch list and excluded listings to quickly find what matters most. Perfect for managing large volumes of items.
Listing tags
Labels you define (name + color) for watched and excluded listings — scan faster, filter by tags, and keep the same context in alerts.
Improved notes
Floating notes and notes that open automatically on the listing page — always visible and within reach while you browse or update your notes.
Limited time offer
To thank all our users for the amazing feedback and love, we are giving away activation codes for 30 days of AuctionMate PRO for free!
AUCTIONMATE-PIONNIERS2
Valid until the end of April