Top 7 Amazon Keyword Research Tools (Free) to Skyrocket Your Product Rankings
When it comes to selling on Amazon, keywords are the lifeblood of visibility. But what if you’re just starting out and don’t want to invest hundreds of dollars in premium tools? Good news: There are powerful Amazon keyword research tools available for free—and many sellers don’t even know about them.
In this post, we’ll uncover the top 7 Amazon keyword research tools (free) you can start using today to improve product discovery, boost organic rankings, and scale your Amazon FBA business without breaking the bank.
Amazon Keyword Research Tools
Why Keyword Research Is Non-Negotiable
Before diving into tools, let’s clarify something: keyword research is not optional.
If you want to:
- Appear in Amazon search results
- Get organic clicks
- Lower your ACoS on ads
- Increase conversion rate
…then keyword research is the first step. Without it, even the best product won’t be found.
👉 You can also explore our guide on how to optimize Amazon listings for SEO, which walks you through on-page optimization using your keyword research.
Top 7 Amazon Keyword Research Tools Free
1. Amazon Search Bar (Autocomplete)
This tool is hiding in plain sight. Start typing a product keyword into Amazon’s search bar, and you’ll see auto-suggested long-tail keywords.
These suggestions come directly from real buyer behavior.
💡 Example: Type “kitchen knife” and get “kitchen knife set with block,” “kitchen knife for meat,” etc.
2. Helium 10 – Free Plan
Helium 10 is a premium tool, but their free plan offers access to:
- Magnet (Keyword suggestions)
- Cerebro (Reverse ASIN lookup)
You get limited usage per month, but enough to conduct basic research.
3. Google Keyword Planner
While not Amazon-specific, Google Keyword Planner is excellent for discovering buyer intent phrases.
You can filter for high-volume, low-competition terms and cross-reference them with Amazon.
Pro tip: Combine this with Helium 10’s Cerebro for a complete picture.
4. Keyword Tool (keywordtool.io/amazon)
Keyword Tool scrapes Amazon’s autocomplete suggestions, giving you long-tail phrases.
The free version hides search volumes, but the keyword list alone can spark great ideas.
5. AMZ Suggestion Expander (Chrome Extension)
This is a free Chrome plugin that expands Amazon’s auto-suggestions by giving you:
- Prefix keywords
- Suffix keywords
- Long-tail combinations
It’s fast, free, and very helpful for discovering untapped keyword opportunities.
6. Sonar by Sellics
Sonar used to be one of the go-to tools for free Amazon keyword research. While it’s now partially integrated with Sellics, its free keyword database is still usable.
You can reverse lookup ASINs or search keywords directly.
7. DataDive (Free Trial)
If you want to test advanced keyword clustering and competitor analysis, DataDive offers a limited free trial to dive into keyword intelligence used by 7-figure sellers.
How to Use These Keywords in Your Listings
After collecting keywords, make sure to insert them:
- In your product title
- Across bullet points
- In the product description
- In your backend search terms
Avoid keyword stuffing. Use natural, readable formats. Want to go deeper into long-tail keyword strategy? Check out our long tail keywords Amazon listing guide.
Combine Keyword Research With External Traffic
Free tools are great for keyword discovery, but pairing your listings with external traffic sources like Google Ads or TikTok can increase your listing’s visibility and sales velocity.
🔗 Learn about external traffic & Amazon ranking
Mistakes to Avoid
❌ Copy-pasting competitor titles without editing
❌ Ignoring backend search terms
❌ Not using long-tail variations
❌ Overusing broad keywords with high competition
Focus on relevance, search intent, and readability.
You don’t need to spend a fortune on tools to win at Amazon SEO. These free Amazon keyword research tools give you everything you need to:
- Find winning keywords
- Rank organically
- Boost your sales without depending on ads
📞 Want Help With Amazon Keyword Research or Listing Optimization?
If you’re unsure which keywords to prioritize or how to structure your listings, I can help.
👉 Book a FREE 1-on-1 strategy session here
We’ll dive into your product niche, find the best free tools for your case, and create a winning keyword map.
🚀 Spots are limited—lock in your free call now and stop guessing what keywords to use.
