How to pick a free Amazon product research tool
Updated
Name the job first: judging a niche, estimating sales or finding keywords. Free tools usually do one of them well. Shelfverdict does the first for free, with no account and no cap on verdicts; the big suites cap their free tiers.
Free, no account, no cap on verdicts.
Decide the job first
Product research is three jobs that tools often bundle: judging a niche, estimating sales, and finding keywords. A free tool usually does one of them well. Start by naming the one you need today.
Questions to ask of any tool
- What does the free tier cap? Helium 10’s pricing page says extension access on its Free plan is limited (read on 6 October 2026). Jungle Scout says it has no free trial (same date). A cap on lookups changes how you work.
- Which Amazon sites? Shelfverdict reads amazon.com, .co.uk, .de, .it, .fr and .es.
- Where do your searches go? Some tools send each search to a server. Shelfverdict reads only the page on your screen and fetches nothing.
- Does it show its working? A score with no limits is hard to argue with. Shelfverdict shows each check with its limit.
- Does it claim too much? Sales estimates are reported to miss actual sales in the large suites (reported, read on 4 October 2026). Amazon’s own past-month sales figure is a floor, and Shelfverdict Pro marks its local estimates est.
Where Shelfverdict fits
It answers the first question, whether a search page looks winnable, for free and with no cap. It has no keyword research and no listing tools, so pair it with whatever you use for those. See how to read a verdict and what each check means.
When to pay
Pay when a free tool stops answering your questions: you want history for products you track, saved niches, or a CSV of the competitor table. Shelfverdict Pro is €39 a year or €79 once. Shelfverdict keeps growing from seller feedback, and the roadmap page takes suggestions.
Questions
What is the best free Amazon product research tool?
There is no single best one. Free tools cover different jobs. Shelfverdict covers the verdict on a search page. Suites offer limited free access, and Amazon itself shows a past-month sales figure on many listings.
Are free product research tools accurate?
Treat any estimate as a guess. Sales estimates in the big suites are reported to miss actual sales (reported, read on 4 October 2026, from search snippets on our comparison page).
What should I check before choosing a tool?
Which Amazon sites it supports, what the free tier caps, whether it sends your searches anywhere, and whether it shows its limits.
Does Shelfverdict send my searches anywhere?
No. It reads the search page on your screen and fetches nothing.
Keep reading
A free Helium 10 alternative · A free Jungle Scout alternative · Against the research suites
Helium 10 facts: its pricing page, read on 6 October 2026. Its user numbers are reported and come from our comparison, read on 4 October 2026. Jungle Scout facts: its pricing page and Catalyst plans page, read on 6 October 2026.
Shelfverdict is an independent product for Amazon sellers and is not affiliated with Amazon, Helium 10, Jungle Scout or AMZScout.