Last updated September 2026: Sellics, Sonar and Viral Launch — three tools from our original list — no longer exist. This edition adds their current replacements and fresh pricing for everything else.
Keywords still decide who sells on Amazon. The retailer remains the leading ecommerce platform by a wide margin, and its search box is where most purchase journeys start. If your listing doesn't carry the words shoppers actually type, you're invisible no matter how good your product is.
I manage Amazon listings for client brands, and I keep coming back to the same handful of keyword tools. Some are free, some cost over $100 a month, and two names we recommended two years ago are gone entirely. Here are the ten tools worth your time in 2026.
Quick Answer
The best Amazon keyword research tool in 2026 is Helium 10's Magnet for most sellers — Jungle Scout if you also need product research, SellerSprite if you're on a tight budget, and Amazon's free Search Query Performance report if you're brand registered. Prices below were checked in September 2026.
Why keyword research still decides your Amazon sales
Amazon's A9 algorithm matches search terms against your title, bullets, description and backend keywords. Rank for the wrong terms and you collect impressions that never convert; miss the right terms and a competitor takes the sale. If you want the full mechanics, read our guide to mastering the Amazon A9 algorithm — keyword choice feeds directly into it.
Done properly, keyword research does three things:
- Finds demand before you stock inventory. Search volume tells you whether a product idea has buyers at all.
- Improves ranking sustainably. The same relevance-first discipline behind improving your business search rankings on Google applies on Amazon.
- Feeds your PPC campaigns. Exact-match keywords discovered through research are the cheapest ones to advertise.
The most common Amazon FBA mistake I see isn't bad pricing — it's skipping keyword research entirely, then wondering why a listing with great photos gets no traffic.
What happened to Sellics, Sonar and Viral Launch?
Three tools from our 2024 list are gone, and I'd rather tell you outright than leave dead recommendations on the page:
- Sellics was acquired by Perpetua in 2022 and folded into what is now an enterprise advertising platform under Omnicom. It no longer sells a standalone keyword tool.
- Sonar, Sellics' popular free keyword tool, was shut down along with it — the old sonar-tool.com address no longer works.
- Viral Launch closed its doors in January 2026 after more than a decade in the space.
Their 2026 replacements — Jungle Scout, SellerSprite and Amazon's own Search Query Performance — are covered below.
How the 10 tools compare
| Tool | Best for | Amazon-native data | Free option | Price from |
|---|---|---|---|---|
| Helium 10 | All-round keyword research | Yes | Limited free plan | ~$99/month (annual billing) |
| Jungle Scout | Product + keyword research | Yes | No | $49/month |
| SellerSprite | Budget sellers | Yes | 3-day trial | ~$19/month |
| Search Query Performance | Official first-party data | Yes | Completely free | Free |
| Keyword Tool | Quick autocomplete ideas | Yes | Yes | Free / Pro paid |
| MerchantWords | Deep keyword database | Yes | No | ~$35/month |
| Semrush | Demand beyond Amazon | No | Limited free | $139.95/month |
| Ahrefs | Competitor research | No | Webmaster Tools | $29/month |
| KWFinder (Mangools) | Easy long-tail keywords | No | Free trial | $19.90/month (annual) |
| Google Keyword Planner | Free Google-side validation | No | Yes | Free |
1. Helium 10 (Magnet + Cerebro) — best overall
Magnet pulls suggestions from one of the largest Amazon keyword databases around, and Cerebro reverse-engineers competitors: paste a rival ASIN and it shows the keywords that listing ranks for. That combination — find the demand, then verify it against a competitor — covers most of what a private-label seller needs. There's a limited free plan, and paid plans start around $99/month billed annually.
Verdict — best for: serious private-label sellers who want one tool that does everything.
2. Jungle Scout (Keyword Scout) — best all-in-one alternative
Jungle Scout built its name on product research, and Keyword Scout is the keyword half: search volume, suggested terms and estimated PPC bid costs before you spend on ads. The 2026 lineup runs from the $49/month Starter plan to the $149/month Brand Owner plan, with annual billing discounts. Keyword Scout's volume estimates run slightly more conservative than Helium 10's in my experience — treat exact numbers as directional on any tool.
Verdict — best for: sellers who want product research and keyword research in a single subscription.
3. SellerSprite — best budget pick
SellerSprite is the newest name on this list and the one I recommend to cost-conscious sellers, especially outside the US — it's strong on Asian and European marketplaces where some American tools are thin. The 3-day free trial needs no credit card, paid plans start around $19/month, and the free browser extension includes a usable keyword checker. The database is smaller than Helium 10's, but for the price it isn't close.
Verdict — best for: new sellers and non-US marketplaces on a budget.
4. Amazon Search Query Performance — best free data
If you're enrolled in Brand Registry, open Search Query Performance in Seller Central before anything else on this list. It's Amazon's own first-party data: real impressions, clicks, cart adds and purchases per search term — not an estimate. You see which queries drive your category and how much of that demand your ASINs actually capture. The catch: it only covers your own brand's terms, so you still need a third-party tool for competitor research.
Verdict — best for: brand-registered sellers who want free, non-estimated data.
5. Keyword Tool (keywordtool.io) — best free quick start
Keyword Tool works off Amazon's autocomplete: type a seed keyword and it returns the long-tail variations shoppers actually finish typing. The free version caps how many suggestions you see per search, with paid plans unlocking the full lists along with volume data. No account needed — it's the fastest way to gather raw keyword ideas in five minutes.
Verdict — best for: building a starter keyword list for free.
6. MerchantWords — deepest keyword database
MerchantWords has been collecting Amazon search data for over a decade, and it shows in the long-tail depth and multi-marketplace coverage that autocomplete tools can't match. Plans start around $35/month for 500 US searches, or $79 for 1,000. It's keyword-only — no product research, no PPC management — and at that price it's fair to call it a specialist tool. I still reach for it when I need to go deep on a single marketplace.
Verdict — best for: deep keyword work in specific marketplaces.
7. Semrush — best for demand beyond Amazon
Semrush is a Google SEO suite, not an Amazon tool, and that's exactly why it earns a slot: it shows how people research your product category before they hit Amazon. The Pro plan runs $139.95/month (about $117 billed annually). I use it to catch category language — "portable blender" versus "personal blender" — that Amazon-only tools never surface.
Verdict — best for: sellers running their own store or content alongside Amazon.
8. Ahrefs — best for competitor context
Ahrefs' Keyword Explorer gives difficulty scores and volume, and Site Explorer shows which pages link to a competitor's storefront or review blog. Amazon's own Amazon SEO guidance explains how listing quality shapes rankings; Ahrefs covers the web-side half of that equation. The $29/month Starter plan and the free Webmaster Tools tier make it easy to try before committing.
Verdict — best for: off-Amazon competitive research.
9. KWFinder by Mangools — easiest long-tail finder
KWFinder is still the friendliest keyword-difficulty tool out there: colour-coded difficulty scores, clean SERP views, and filters that make low-competition long-tails obvious. It's Google data, so use it the same way as Semrush — for off-Amazon demand. Mangools sells it inside a five-tool suite from $19.90/month (annual billing), with a free trial. If you also run a store, the same subscription powers an effective link building campaign through its LinkMiner tool.
Verdict — best for: beginners who want simple difficulty scores.
10. Google Keyword Planner — best free validation
Free inside any Google Ads account, Keyword Planner gives volume ranges and CPC estimates for Google search. The numbers differ from Amazon's marketplace, but they confirm whether a category has real demand before you commit inventory budget. I run every new product idea through it before opening a paid tool.
Verdict — best for: free demand validation before investing.
How to choose
Match the tool to your stage. Validating a product idea: Google Keyword Planner plus SellerSprite's free trial. Launching: Helium 10 or Jungle Scout. Scaling a registered brand: layer in Search Query Performance. And whatever your stage, the FBA tasks you can outsource multiply what these tools tell you — a virtual assistant can run weekly rank tracking while you handle strategy.
FAQ
Which Amazon keyword research tool is best in 2026?
For most sellers, Helium 10: Magnet and Cerebro cover keyword discovery and competitor reverse-engineering with one of the largest Amazon databases available. Jungle Scout is a close all-in-one alternative, SellerSprite is the best value under $20/month, and brand-registered sellers should add Amazon's free Search Query Performance report.
Is there a free Amazon keyword research tool?
Several. Amazon's Search Query Performance is free for brand-registered sellers and uses first-party purchase data. Keyword Tool's Amazon version gives free autocomplete suggestions, and Helium 10 has a limited free plan. For Google-side demand, Google Keyword Planner is completely free inside a Google Ads account.
What happened to Sellics, Sonar and Viral Launch?
Sellics was acquired and folded into Perpetua's enterprise advertising platform in 2022, and its free Sonar tool was shut down with it. Viral Launch closed in January 2026. All three have been replaced on this list by Jungle Scout, SellerSprite and Amazon's Search Query Performance.
Do I need keyword research if I run Amazon PPC?
Yes — the two feed each other. Keyword research finds the exact terms worth bidding on, which lowers your cost per click, and terms that convert in PPC are the ones you build into your title and backend keywords. Skipping research usually means paying more for the same sales.
How many keywords should an Amazon listing target?
Put your most important keywords in the title and bullets naturally, then use backend search terms (a limit of roughly 250 bytes on most marketplaces) for the remaining variations. Aim to index for every relevant term rather than repeating variations — Amazon matches words, not repetitions.
Final thoughts
The best tool is the one you'll actually open every week. Pick one paid tool that fits your budget, add the free ones, and re-check your rankings monthly. Keywords are one piece of the listing puzzle — product photography, pricing and reviews move conversion just as much, and sloppy listing data or policy slips can escalate to an Amazon seller suspension faster than you'd think.
I've used every tool on this list across client accounts — ask me anything in the comments.
Related reading
- Mastering the Amazon A9 algorithm for higher rankings
- Best Amazon product photography options for sellers
- 15 FBA tasks to outsource to Amazon virtual assistant services
- Tips for improving your business search rankings
—
Author's bio: Jayce is the managing director of Seller Interactive, a company designed to help brands grow their business online. As an expert in content marketing, Jayce has worked with top brands such as GoDaddy and Toyota. Whether you need a hand with Amazon listing optimization and Amazon PPC management, Jayce is the team that gets results.
