Amazon Keyword Explorer — Free Keyword Research Tool

Worked example

One seed keyword, expanded into a full universe by this Amazon keyword research tool.

Pro tips: getting the most from the Keyword Explorer

The explorer builds keyword ideas from your seed word plus a modifier list — here’s how to turn that list into campaigns that actually spend well.

Treat Interest and Opportunity as a starting filter, not data

The Interest and Opportunity columns are honest heuristics built only from your seed word and the modifier list — they are not Amazon search volume, and the results screen says so. Use them to shortlist: start with the 5 highest-opportunity keywords as Exact match in one test campaign. Then confirm real demand with Brand Analytics or a search-term report before you scale bids.

Split exact and discovery from day one

The tool’s verdict recommends it for a reason: put your 5 best exact-match keywords in a dedicated test campaign, and the broad modifiers in a separate discovery campaign with a smaller budget. Discovery finds new terms; exact harvests them. Mixing both in one campaign lets broad match burn the budget your proven exact terms should be spending.

Test the misspelling variants as exact match

For the top 3 keywords the explorer generates common misspelling variants — doubled letters, swapped letters. Shoppers really do type these, and because fewer sellers bid on them, they often cost less per click. Add them as exact-match keywords in your discovery campaign; if one converts, promote it like any other winner.

Bank the negative candidates immediately

Every run surfaces negative candidates — free, cheap, used, refurbished, wholesale and the like. If your product can never match those intents, add them as campaign negatives before you launch, not after they’ve spent money. A $30 insulated bottle will never win a “free water bottle” search, and paying to appear there is pure waste.

Favor 3-word-plus keywords for efficiency

The opportunity heuristic scores longer keywords higher because they usually face less competition — and that matches reality. A 4-word keyword like “insulated stainless steel bottle” converts better than “bottle” because the shopper has already told you exactly what they want. Build your exact-match core from the longest relevant terms first.

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