If you've ever shopped on Amazon, you know how often prices move. One day an item is a great deal, and the next day it's back to full price. For shoppers trying to time a purchase and for Amazon sellers trying to time a buy, keeping track of these swings by hand just isn't realistic.
That's where Keepa comes in. It's a free browser extension and website that tracks price history on Amazon and lets you set alerts so you find out the moment a product hits the price you want, instead of refreshing the page every day.
This guide walks through everything: installing Keepa, reading its price history chart, setting up your first alert, managing alerts at scale, choosing how you get notified, and using the more advanced features that most casual users never touch. By the end you'll know exactly how to turn Keepa into a system that watches prices for you.
What Is Keepa?
Keepa tracks price history across Amazon marketplaces and displays it as a chart directly on the product page, with hourly updates on price history and sales rank, along with sales rank, offer data, Buy Box statistics, and competing seller offers where available. As of 2026, Keepa's own site states it tracks over 7 billion Amazon products worldwide.
Beyond the chart itself, Keepa's core value is the alert system built on top of it: you set a target price or condition, and Keepa notifies you when that condition is met, rather than you having to check back manually.
Key features at a glance
- Price history charts: Separate lines for new, used, and third-party seller pricing, going back months or years for most products
- Price drop and availability alerts: Get notified when a product hits your target price or comes back in stock
- Sales rank tracking: See how a product's category rank has moved over time, a rough proxy for how well it sells
- Buy Box and offer-count tracking: See who holds the Buy Box and how many sellers are competing on a listing (Pro feature)
- Browser integration: The chart appears right on the Amazon product page once the extension is installed
- Multi-marketplace support: Track the same product across different country-specific Amazon sites
Now let's get it set up.
Step 1: Install the Keepa Browser Extension
Keepa's Browser Extensions are available for Chrome, Firefox, and Edge.
- Go to the Chrome Web Store (or the Firefox Add-ons store, or Edge Add-ons, depending on your browser)
- Search for "Keepa - Amazon Price Tracker"
- Click "Add to Chrome" (or the equivalent for your browser)
Once installed, Keepa integrates directly into Amazon product pages. You don't need to configure anything else at this stage. When you're browsing Amazon normally, the extension displays price history directly on Amazon product pages.
If you'd rather not install a browser extension, you can also use Keepa directly through keepa.com by pasting in an Amazon product URL or ASIN, though that lacks the integrated on-page chart.
Step 2: Find Your Product on Amazon
Head to Amazon.com, or your local marketplace (Amazon.co.uk, Amazon.de, and so on), and search for the product you want to track. Say you're eyeing a laptop but want to wait until it drops below $800. Navigate to that laptop's product page as you normally would.
Step 3: Read the Price History Chart
Scroll down slightly on the product page and you'll see the Keepa chart sitting below the main product description. This is the most important part of the tool to actually understand, because a good alert threshold depends on reading how it shows price fluctuations over time.
The chart typically shows several colored lines, and knowing what each one means changes how you use the tool:
- Orange — Amazon's own price, showing the separate pricing trend for Amazon-fulfilled offers when Amazon itself is selling the item
- Pink — the Buy Box price, which is what most customers actually pay
- Blue — the lowest new third-party offer, showing a separate trend from Amazon on the same listing
- Black — the lowest used offer
A few practical ways to read this before setting an alert:
- If the orange line disappears for a stretch, Amazon isn't currently selling that listing, which often means the Buy Box is easier for a third-party seller to win
- Frequent small dips in the pink line suggest the product's price moves often, so a modest, realistic threshold will trigger sooner than an aggressive one
- A sudden spike right before a "sale" is a common way listings inflate a reference price so the discount looks bigger than it is, the chart makes this visible where a snapshot price on the page wouldn't
Spend a minute looking at the shape of the graph as Amazon price history before deciding on your target price. A product that dips below your target every few weeks is a very different tracking situation from one that has only touched that price once in the last year.
Step 4: Set Up Your Price Alert
Once you've reviewed the history and picked a price you're comfortable with, it's time to set personalized price drop alerts after reviewing the chart.
- Click "Track Product", found just below the Keepa chart
- In the window that opens, set your custom threshold for the alert (for example, set price alerts for when it drops below $800)
- Choose whether you want alerts for new listings, used listings, or both
- Specify whether you only want alerts for items sold by Amazon directly, by third-party sellers, or either
- Choose how long to track the item, options typically range from one month to indefinitely
- Click "Start Tracking"
That's it. Keepa allows users to set personalized price drop alerts, and it will monitor the product's price and send price drop alerts when your custom threshold is met.
Step 5: Manage Your Alerts
If you're tracking more than a handful of items, or want to adjust an alert later, managing them centrally is straightforward:
- Go to Keepa.com and log into your account
- Click "Track" in the top menu
- You'll see every product you're tracking, along with its current price and the alert method set for that item, so you can confirm how you'll receive notifications
- From here you can edit thresholds, pause tracking, or remove trackers you no longer need
This view is worth checking periodically even without a new alert, since it doubles as a quick snapshot of where all your watched products currently sit and helps verify which alerts will send price-drop notifications by email or push notifications.
Step 6: Choose How You Get Notified
Keepa offers various notification channels for price alerts, and picking the right one matters more than it sounds, especially if you're tracking time-sensitive deals:
- Email alerts — the default, reliable but not always instant if your inbox is busy
- Browser push notifications — useful for instant alerts for price drops when speed matters, but only work while your browser is open
- Telegram and other messaging app integrations — sends alerts straight to your phone, which is the most reliable option for catching short-lived price drops
You can adjust these under "Notification Settings" in your Keepa account. If you're chasing fast-moving deals like Lightning Deals, set up drop alerts on a channel that reaches your phone instead of relying on email alone.
Advanced Features Worth Knowing
Basic price alerts cover most casual use, but Keepa has a few features that go further, particularly useful for sellers and frequent deal hunters.
Track prices across different countries
If you buy or sell internationally, Keepa lets you track the same product across different Amazon marketplaces, such as Amazon UK versus Amazon Germany. This is useful both for shoppers looking for the best regional price and for sellers evaluating cross-marketplace opportunities, since price gaps between country marketplaces are common and often short-lived.
Monitor Lightning Deals
Lightning Deals are time-limited and can sell out fast. Keepa lets you set alerts specifically for these by selecting the Lightning Deals tracking option, so you find out the moment one goes live rather than stumbling onto it after the stock is gone.
Import your wishlist
If you already keep a long Amazon wishlist, you don't need to add each item to Keepa individually. Keepa can import your entire wishlist in one action and let you set alerts across every item at once, which is a meaningful time-saver if your list runs into dozens of products.
Sales rank tracking
For sellers, especially those using Fulfillment by Amazon, sales rank history is one of the more useful signals Keepa provides. Rank isn't a precise sales number, but tracking Keepa sales rank data over time helps gauge product demand and gives a rough sense of demand trends and product performance for a given ASIN and category.
Sellers also use Keepa data to identify pricing trends before sourcing or repricing inventory.
Buy Box and offer-count tracking
This is particularly relevant for anyone doing arbitrage or reselling: Keepa can show how many sellers are on a listing and how the Buy Box price has moved as competition changed. A listing that jumped from a handful of sellers to over a hundred in a short window is a signal that a deal has been widely spotted and margins are likely compressing.
Product Finder
Keepa's Product Finder lets you filter across its entire product database using dozens of criteria at once (price range, sales rank, category, discount percentage, and more), which is a faster way to surface opportunities than browsing individual listings.
Free vs. Pro: What You Actually Get
Keepa's core price tracking is free, and for most everyday shoppers, the free version is genuinely enough because Keepa offers a limited free tier with basic tracking functionalities. Where it gets more nuanced is for sellers who need deeper data.
As of 2026, Keepa Pro is reported at roughly €29 per month, or €290 per year (about €24/month, a 17% saving on paying monthly), based on multiple third-party trackers of Keepa's checkout, since Keepa's own pricing page loads dynamically and isn't directly scrapable. Older reviews sometimes cite a €19/month figure, but that appears to reflect a previous, since-changed price point, so treat anything below €29/month as outdated. For the current number, check Keepa's pricing page directly before subscribing, since pricing can change.
API access, aimed at developers building on top of Keepa's data rather than at typical sellers or shoppers, is sold separately starting from roughly €49/month on a token-based system.
For most people chasing deals on personal purchases, the free tier's charts and alerts are enough. Amazon sellers relying on sales rank trends, Buy Box history, or bulk product research are usually the ones who get value from the deeper paid analytics.
Common Mistakes to Avoid
A few habits separate people who get real value from Keepa from those who set an alert once and forget about it:
- Setting the threshold too aggressively. If you set an alert for a price the product has only hit once in two years, you may wait indefinitely. Use the chart's history to set a realistic target, not a wishful one.
- Ignoring which line you're tracking. An alert on the lowest third-party offer isn't the same as an alert on the Buy Box price, and the difference matters if you care about who's actually shipping the item.
- Relying only on email. Fast-moving deals, especially Lightning Deals, can come and go before a busy inbox surfaces the alert. A push or messaging-app notification closes that gap.
- Not checking the shape of the graph before buying, even after an alert fires. A price that dropped because of a genuine sale looks different on the chart from one that dropped because a single third-party seller is offloading old stock. Glance at the chart before completing the purchase.
- Forgetting to prune old trackers. Alerts on products you no longer care about clutter your tracking list and make it easier to miss the ones that matter. A quick pass through the Track page every so often keeps it useful.
Frequently Asked Questions
Can I track multiple products at once?
Yes. Both the free and Pro versions let you track more than one product; the free tier simply caps the number of active trackers, while Pro raises that limit.
How often does Keepa update prices?
Keepa refreshes pricing data frequently throughout the day across supported Amazon marketplaces, though the exact interval can vary by product and marketplace.
Is there a mobile app?
Keepa doesn't offer a dedicated native mobile app in the way the browser extension works on desktop, but its notification system supports mobile-friendly channels like Telegram and browser push, and the site itself is usable from a mobile browser.
Do I need to pay to use Keepa at all?
No. The price history charts, the browser extension, and basic price and availability alerts are free. Payment only becomes relevant if you want sales rank data, Buy Box tracking, Product Finder, or API access.
Does Keepa work outside the US?
Yes. Keepa supports a wide range of country-specific Amazon marketplaces, and you can track the same product across several of them to compare regional pricing.
Will an alert notify me the instant a price changes?
Not quite instantly, since Keepa checks prices on a refresh cycle rather than in true real time, but for most price-tracking purposes the delay is short enough not to matter. For genuinely time-critical deals like Lightning Deals, use push or messaging-app notifications rather than email to minimize the gap.
Final Thoughts
Setting up a Keepa alert takes a couple of minutes, and once it's running, it removes the need to manually recheck a product page hoping for a discount. Install the extension, learn to read the chart rather than just glancing at the price, set realistic thresholds based on real history, and pick a notification channel that will actually reach you in time.
Whether you're a shopper waiting for the right moment to buy or a seller watching sourcing opportunities across marketplaces, that's really all Keepa is: a way to let the price watch itself, so you don't have to.
