7 Best Amazon Keyword Research Tools for 2026, Plus 6 Free Options

Helium 10 is the best Amazon keyword research tool, but only on its $279 Diamond plan. The $99 Platinum plan now includes just 100 keyword searches a month and no rank tracking. Jungle Scout Growth Accelerator is the best value at $49 a month billed yearly, with 500 tracked keywords. I checked every plan page and free tool on October 1, 2026.

• Best overall: Helium 10 Diamond, for full Cerebro and Magnet access plus rank tracking.
• Best value: Jungle Scout Growth Accelerator, with 250 searches and 500 tracked keywords.
• Best for listing keywords: Data Dive, which merges your top competitors into one keyword list.
• Best budget: ZonGuru Researcher, about $23 a month with our lifetime discount.
• Best free option: Amazon Brand Analytics, if you are brand registered.

1. Helium 10: Best Overall on the Diamond Plan

Helium 10 is the deepest Amazon keyword research tool on this list. Its Diamond plan costs $279 a month billed yearly. Cerebro reverse-searches any competitor ASIN. Magnet turns one seed keyword into thousands of related terms. The cheaper Platinum plan now stops at 100 keyword searches a month, with no rank tracking.

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Who it fits: brands that live in keyword data and run their own PPC. Helium 10 aims Diamond at sellers doing $100,000 to $10 million a year.

Pricing and limits: Platinum costs $129 a month, or $99 a month billed yearly. It includes 100 keyword searches a month across reverse ASIN and seed lookups, plus keyword sales data, but no rank tracking. The Diamond plan costs $359 a month, or $279 billed yearly, and adds full keyword research, rank tracking and long-term keyword trends. Extra keyword tracking is also sold as an add-on from $19 a month.

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Standout feature: Cerebro lists every keyword a competitor ASIN ranks for, with estimated search volume and keyword sales. Magnet covers the seed side. Connect Brand Analytics and Magnet also shows click share and conversion share from Amazon's own data.

Say you sell silicone baking mats. You run Cerebro on your 3 strongest competitors and keep only the keywords where 2 of them rank on page one. You export about 150 terms for your listing and launch campaign. On Platinum, each of those lookups counts against your 100 monthly searches, which is why heavy users move to Diamond.

My Helium 10 review covers the rest of the suite. The current code is on the Helium 10 coupon page.

2. Data Dive: Best for Building a Master Keyword List

Data Dive is built for one job: turning your top competitors into a single master keyword list. Its Starter plan costs $39 a month, or $32 billed yearly, and covers 100 Dive ASINs. Rank Radar then tracks 25 keywords on Starter and 1,000 on Standard.

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Who it fits: private-label sellers who are writing or rewriting a listing and want relevance scores instead of a raw keyword dump.

Pricing and limits: Starter is $39 a month ($32 yearly) with 100 Dive ASINs and 25 Rank Radar keywords. Standard is $149 ($124 yearly) with 1,000 of each. Enterprise is $490 ($408 yearly) with 4,000 Dive ASINs and 12,000 tracked keywords. Our link adds a 14-day free trial and 10% off for 6 months.

Standout feature: the Master Keyword List scores each keyword's relevance across the competitors you pick. It then shows which terms belong in your title, bullets and backend fields. Rank Radar tracks organic and sponsored rank in the same view. Data Dive draws its keyword data from Jungle Scout's API, a link the Jungle Scout vs Data Dive comparison breaks down.

Say you are launching a garlic press. You add the 10 strongest competitors, and Data Dive merges their keywords into one list ranked by relevance. You copy the top terms into your listing, then put 25 of them on Rank Radar to watch the launch.

Read the full Data Dive review, or grab the code from the Data Dive coupon page.

3. Jungle Scout: Best Value for Keyword Research and Tracking

Jungle Scout gives you the most keyword tracking per dollar. Growth Accelerator costs $49 a month billed yearly. It includes 250 Keyword Scout searches, 500 tracked keywords and 1 year of keyword history. The $29 Starter plan stops at 50 searches a month and has no rank tracker.

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Who it fits: new and growing sellers who want product research and keyword research in one subscription.

Pricing and limits: Starter is $49 a month or $29 billed yearly, with 50 Keyword Scout searches, 1 month of keyword history and no Rank Tracker. Growth Accelerator is $79 or $49 yearly, with 250 searches, 1 year of history and 500 tracked keywords. Brand Owner is $149 or $129 yearly, with full Keyword Scout access, 2 years of history and 5,000 tracked keywords. There is no free trial, but every plan has a 7-day money-back guarantee. The full Jungle Scout plan breakdown lists every other limit.

Standout feature: Keyword Scout works from a seed keyword or a competitor ASIN. It shows search volume next to sponsored bid estimates, so it doubles as a PPC planning tool. Our partner page takes up to 50% off.

Say you track 40 keywords for each of 3 products. That is 120 tracked keywords, well inside Growth Accelerator's 500. On Starter you could not track any of them.

See my Jungle Scout review, or how it stacks up in Helium 10 vs Jungle Scout. The Jungle Scout discount page explains the partner pricing.

4. SmartScout: Best for Keyword and Brand Research Together

SmartScout's Essentials plan adds unlimited keyword research and tracking to its brand database. It costs $119 a month, or $99 billed yearly. The $49 Basic plan includes only limited keyword research. Keyword Detective, the Relevancy Quadrant and the Keyword Map sit on the $299 Business plan.

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Who it fits: wholesale and brand-focused sellers who already want SmartScout's brand data and would rather not pay for a second keyword tool.

Pricing and limits: Basic is $49 ($29 yearly), Essentials is $119 ($99 yearly) and Business is $299 ($239 yearly). Rank Maker tracking and search trends start on Essentials. There is no free trial, only a 7-day money-back guarantee. Our partner link takes 25% off the first 3 months, so Essentials costs $89.25 a month for those months. SmartScout's plan breakdown has the rest.

Standout feature: the Search Terms Database comes with every plan, and Essentials adds Rank Maker with no cap on tracked keywords. My SmartScout keyword research guide walks through the full workflow.

Say you resell 40 brands. Essentials lets you check the keywords behind each brand and track the terms you care about without counting searches.

The SmartScout review covers its brand and seller tools in depth.

5. ZonGuru: Best Budget Pick for Listing Keywords

ZonGuru bundles Keywords on Fire and its Listing Optimizer into the Researcher plan. Researcher costs $49 a month, or $29 billed yearly. Our link takes 20% off for life, which brings yearly billing to about $23 a month. Keyword tracking sits on the Seller plan instead.

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Who it fits: sellers who mainly need listing keywords and want the lowest steady monthly price.

Pricing and limits: Researcher is $49 a month or $29 yearly and includes Keywords on Fire. The Seller plan adds the Keyword Tracker and starts at $79 a month, or $49 yearly, for 1 to 20 SKUs. Keywords on Fire is also sold alone for $19 a month (45 sessions). Every plan starts with a 7-day free trial, and the current ZonGuru discount stacks with yearly billing.

Standout feature: Keywords on Fire ranks a niche's keywords by search volume and shows which competitor listings pull the most traffic. A free Lite version runs in the browser with no plan at all.

Say you sell one product line with 8 SKUs. Researcher covers your listing keywords for about $23 a month with our link. You move to Seller only when you want daily keyword tracking.

My ZonGuru review explains the SKU-based Seller pricing.

6. SellerSprite: Best Low-Cost Keyword Suite

SellerSprite's Basic plan costs $39 a month, tied with Data Dive for the lowest monthly price here. It covers keyword mining, reverse ASIN lookups and Brand Analytics rank filters. One catch: monthly Basic includes zero keyword trackers. Yearly Basic, at $390, includes 250.

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Who it fits: sellers on a tight budget who still want filters such as purchase rate and title density.

Pricing and limits: Basic is $39, Standard $79, Advanced $129 and VIP $189 a month. Yearly billing takes about 16% off. Monthly Basic, Standard and Advanced include 0, 500 and 1,000 keyword trackers. Exports are capped at 50 a day per user. Every monthly plan has a 3-day free trial, and the SellerSprite pricing guide covers the yearly perks.

Standout feature: Keyword Mining filters by ABA monthly rank, monthly searches, purchase rate, clicks and title density. Reverse ASIN and multi-ASIN lookups sit in the same menu.

Say you need 200 tracked keywords. Yearly Basic covers that for $32.50 a month. Monthly Basic would cover none, so the yearly plan is the real budget option.

Read the SellerSprite review, or check the SellerSprite coupon first.

7. AMZScout: Best for Simple Keyword Research in a Product Bundle

AMZScout puts its keyword tools inside one AI bundle with product research. The bundle costs $59.99 a month, or $399.99 a year, which works out to $33.33 a month. It includes Product Keywords Lookup for reverse ASIN searches, Keyword Search and a Keyword Tracker. A 10-day money-back guarantee applies.

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Who it fits: beginners who want product ideas and a starter keyword list in one simple tool.

Standout feature: Keyword Search shows estimated monthly search volume, trend and CPC for a seed term. That is enough to write a first listing and set up a starter PPC campaign.

Say you are choosing between 3 product ideas. AMZScout lets you check demand and pull a starter keyword list for each one without paying for a second subscription.

The AMZScout review covers the product research side, and the AMZScout coupons page lists current offers.

Best Free Amazon Keyword Research Tools

You can do useful Amazon keyword research for $0 if you accept limits. Amazon's own search bar and Brand Analytics cost nothing. Keyword Tool Dominator allows 2 free searches per day per source. Helium 10, keywordtool.io and ZonGuru each offer a cut-down free tool. None replaces a paid plan for tracking.

Brand Analytics is the most reliable free source because the numbers come from Amazon itself. Its Search Query Performance dashboard shows how many shoppers searched a term, and how many clicked, added to cart and bought your products. If you are brand registered, check it before paying for any tool.

The autocomplete tools are good for idea lists, not for demand. A suggestion list or a relative Popularity Score tells you a phrase exists, not how many people search it each month.

Amazon Keyword Research Tools Compared

The real difference between these tools is what the entry plan includes. Helium 10's entry plan caps keyword searches at 100 a month, and Jungle Scout's caps them at 50. SmartScout Essentials and Helium 10 Diamond lift most limits but cost more. The table lines up entry prices, limits and the upgrade you would actually need.

How to Choose an Amazon Keyword Research Tool

Pick a keyword tool by the job, not the brand. Listing writers need relevance scoring across competitors. PPC managers need sponsored bid data and rank tracking. Brand owners already have free Amazon data in Brand Analytics. Check the search and tracking limits on the plan you can afford, not the top plan's feature list.

• Writing or fixing a listing: Data Dive, or Helium 10 Diamond if you also want Cerebro.
• Running PPC: Jungle Scout Growth Accelerator, for bid estimates and 500 tracked keywords.
• Researching brands for wholesale: SmartScout Essentials.
• Spending as little as possible: ZonGuru Researcher with our lifetime discount, or SellerSprite on yearly Basic.
• Brand registered and spending nothing: Brand Analytics first, then a free autocomplete tool.

Also check where the numbers come from. Data Dive draws its keyword data from Jungle Scout's API, while Brand Analytics is Amazon's own data. Use Brand Analytics to sanity-check any third-party estimate.

If your main need is competitor keywords, the reverse ASIN tools roundup goes deeper. For writing the listing itself, see the best Amazon listing optimization tools, and for ad keywords, the Amazon PPC software roundup.

The Verdict

Helium 10 Diamond is the best Amazon keyword research tool when budget is not the constraint. Jungle Scout Growth Accelerator is the best value at $49 a month billed yearly. Data Dive is the specialist pick for listing keywords. Brand-registered sellers should open Brand Analytics before paying for anything.

• Choose Helium 10 if: you want Cerebro and Magnet at full strength and can pay $279 a month.
• Choose Jungle Scout if: you want keyword tracking and product research for $49 a month.
• Choose Data Dive if: your main job is writing listings that rank.