The best free eBay product research tool is eBay’s own Product Research, formerly called Terapeak, built into Seller Hub. eBay says it’s free to all sellers, and has been since April 2021. It shows the last 3 years of eBay sales data for millions of items, including average sold price, price range, shipping costs, sell-through rate and how many sellers have sold an item. A second free method is eBay’s completed listings search, which shows items sold in the last 90 days. Business sellers with a Basic Store subscription or higher also get Sourcing Insights at no extra cost, which highlights high-demand, low-supply categories. Paid tools like ZIK Analytics add competitor research on top.
Below I explain each free method, how to read the numbers, and when a paid tool makes sense.
eBay’s free product research tools at a glance
| Tool | Cost | Data range | Best for |
|---|---|---|---|
| Product Research (Terapeak) | Free for sellers with Seller Hub | Up to 3 years | Pricing, demand and sell-through on specific items |
| Completed and sold listings search | Free for anyone | Last 90 days | Quick price checks |
| Sourcing Insights | Free with a Basic Store or higher | Category-level | Finding high-demand, low-inventory categories |
| Price guidance when listing | Free | Recent sales | Setting a starting price |
| ZIK Analytics (paid) | From $39.9/month, or $14/month billed yearly | Its own data | Competitor and category research |
How to use eBay Product Research
eBay says sellers with access to Seller Hub can use Product Research, from the Research tab in Seller Hub or in the eBay mobile apps.
- Open Seller Hub and select the Research tab.
- Enter a keyword, product name or identifier.
- Choose the date range. eBay allows anything from one day to 3 years.
- Filter by condition, format, category or location if needed.
- Review the results and the individual sold listings.
eBay’s results are specific. A sale only counts if it matches your keywords exactly, so try a few variations of the product name.
What the numbers mean
eBay lists the metrics Product Research shows:
| Metric | What it tells you |
|---|---|
| Average sales price | What buyers actually paid on average |
| Sold price range | The spread from cheapest to most expensive sale |
| Average shipping cost | What buyers pay for shipping, and how many listings offer it free |
| Sell-through rate | How much of the listed stock sold (for searches of items sold 90 days ago or less) |
| Total sellers | How many sellers have sold the item |
| Selling format | Auction vs fixed price |
| Trends | Whether demand is rising or falling |
Product Research shows the actual sold price even when a Best Offer was accepted. That’s valuable, because the listed price and the real price often differ.
How I’d read them together:
- High sell-through, few sellers: strong demand, light competition. Worth testing.
- High sell-through, many sellers: demand is real, but you’ll compete on price or presentation.
- Low sell-through: lots of listings, few sales. Usually a pass.
- Wide price range: condition, bundles or presentation drive price. Study the top sellers.
Sell-through rate is the single metric I’d watch most closely. A product people search for but rarely buy is a trap, however busy its listings look.
The free 90-day method: completed listings
eBay’s pricing help suggests checking completed listings to see what items like yours have sold for. Use Advanced Search and select completed listings. eBay notes that completed listings only include items that ended in the previous 90 days.
This works for anyone, even without a seller account, and it’s quick. Bookmark the search with your filters saved, and checking a new idea takes under a minute. The limit is the 90-day window: seasonal products can look better or worse than they really are. For anything seasonal, I’d use Product Research’s longer range instead.
Sourcing Insights for store subscribers
If you have a Basic Store subscription or higher, eBay gives you Sourcing Insights at no extra cost. It covers category research for high-demand, low-inventory categories, flags “Great Opportunity” categories, and shows which item specifics get the most impressions and clicks.
That last point is underrated. Item specifics drive eBay search, so knowing which ones buyers use helps every listing you write. Brand, size, color, model and condition are typical examples. Fill in every relevant one, accurately, because a listing missing the specifics buyers filter by can quietly drop out of their results.
Price guidance in the listing flow
When you list some items, eBay may show a price recommendation based on similar items recently sold. It includes the median sold price, sold price range and counts of sellers, listings and sold listings. It’s a useful sanity check, though I’d still confirm with Product Research before setting a price on anything important.
When a paid eBay research tool is worth it
eBay’s free tools answer “what sells and for how much”. Paid tools add competitor tracking and broader discovery.
ZIK Analytics, for example, lists eBay PRO at $39.9 a month ($14 a month billed yearly) and PRO+ at $59.9 a month, with product, competitor and category research and a Chrome extension. It offers a low-cost trial.
I’d pay for a tool like this when:
- you’re researching dozens of products a week;
- you want to track specific competitors’ listings over time;
- you’re sourcing for eBay dropshipping and need to scan categories quickly.
For a seller testing a few products, eBay’s own tools are enough. Honestly, most people underuse the free data long before they need a subscription. Start there, get comfortable reading sell-through and price ranges, and only pay once you hit a real limit.
A simple research routine
- Brainstorm 20 product ideas from what you know or can source.
- Check each in Product Research over 1 year.
- Shortlist items with good sell-through and a healthy average price.
- Study the top 5 sold listings for each: title, photos, price, shipping, item specifics.
- Estimate profit after eBay fees, shipping and your cost.
- Test a small quantity before buying in volume.
In my view, step 4 teaches more than any metric. The best sold listings show you exactly what buyers responded to.
Keep a simple research log as you go. One row per product: search terms used, date range, average price, sell-through, seller count and your verdict. After a month, patterns appear. You’ll notice which categories keep producing winners, which keywords hide extra sales, and which ideas looked good once but never held up. That log becomes your own private research tool, and it costs nothing.
A worked example (illustrative)
Here’s how I’d research one idea, step by step. The numbers are made up to show the reasoning, not real eBay data.
Say you’re considering vintage film cameras. You open Product Research and search a specific model over one year. Suppose the results show an average sold price of $140, a sold range from $60 to $260, and a strong sell-through rate with a modest number of sellers.
That wide range is the interesting part. Open the top sold listings and you’ll usually find the reason: tested working units with clear photos sell high, while “untested” units sell low. Shipping matters too. Free-shipping listings may sell faster, but you’ll pay for it out of margin.
Now the decision. If you can buy tested units for around $70, then after eBay’s fees, shipping and packaging, there may be room for profit. If you can only find untested units, the numbers look very different. The research hasn’t told you what to buy. It has told you what buyers pay for, which is more useful.
Then I’d check the trend line. If prices are sliding, I’d buy fewer units and sell faster. If they’re rising, I’d hold a little more stock.
Research beyond eBay’s own data
eBay’s tools show what happened on eBay. Before committing, I’d cross-check a couple of outside signals:
- Google Trends for whether interest in the product is rising or seasonal.
- Other marketplaces to see whether the same item sells for much less elsewhere, which can drag eBay prices down.
- Your sourcing cost in writing, from a supplier or a real purchase, not an estimate.
In practice, a product that looks strong on eBay and weak everywhere else is often a short-lived trend. A product that’s steady across sources is a safer bet.
Mistakes in eBay product research
- Using active listings instead of sold data. Asking prices aren’t selling prices.
- Searching one keyword only. Exact matching means you’ll miss sales under other names.
- Ignoring shipping. A cheap item with heavy shipping can lose money.
- Trusting short windows for seasonal items. Use the 3-year range.
- Skipping fees. Always calculate profit after eBay’s fees.
- Falling for one lucky sale. A single high sold price can be an outlier. Look at the whole range and the average before you trust a number.
For more on eBay selling, see our guides to viewing sold items older than 90 days, a good sales conversion rate on eBay and eBay inventory management software. If you’d like expert help with your eBay store, that’s our eBay consultancy service.
FAQ
What is the best free eBay product research tool?
eBay’s own Product Research (formerly Terapeak) in Seller Hub. eBay says it’s free to all sellers and shows up to 3 years of sales data.
Is Terapeak free on eBay?
Yes. eBay made Terapeak Product Research free from April 2021, so sellers no longer need a separate or Store subscription to use it.
How far back does eBay Product Research go?
Up to 3 years. You can set date ranges from one day to 3 years.
How do I see sold items on eBay for free?
Use Advanced Search and select completed listings, which shows items that ended in the last 90 days, or use Product Research in Seller Hub for longer history.
What is sell-through rate on eBay?
It’s the share of listed items that sold. eBay shows it in Product Research for searches of items sold 90 days ago or less.
Can I use eBay Product Research without selling?
eBay says Product Research is available to sellers with access to Seller Hub. If you’re not set up as a seller yet, the completed listings search still shows recent sold prices for free.
How often should I research products on eBay?
Before every new product, and again every few months for your best sellers. Prices and competition shift, especially for seasonal and trending items.
What is eBay Sourcing Insights?
A research feature included at no extra cost for business sellers with a Basic Store subscription or higher. It highlights high-demand, low-inventory categories.
Last updated: October 10, 2026. Sources: eBay Help, product research; eBay Seller Center, research tools; eBay, Terapeak news; eBay Help, pricing your items; ZIK Analytics pricing.
