AmzCompanion — Amazon Stock Checker by AmzCompanion
See every Amazon seller's stock, FBA/FBM split, and price on any product page. 14-day trial — no credit card.
Some features may require paymentSome features may require payment
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About this extension
Know who you're really competing with — without leaving the Amazon listing.
AmzCompanion is a Chrome extension for Amazon sellers who need to size up competition before they source, price, or list. It overlays live seller and inventory intelligence directly on any Amazon product page — so you get the answer in 2 seconds instead of 20 minutes of manual checking.
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WHAT YOU SEE ON EVERY LISTING
No CSV uploads. No dashboards. No pasting ASINs into a research tool. It's just there, on the page you're already looking at.
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WHAT SELLERS USE IT FOR
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WHY IT'S DIFFERENT
Most Amazon seller tools (Jungle Scout, Helium 10, Keepa) pull you into a separate dashboard and ask you to paste in ASINs or upload files. AmzCompanion runs inline, on the product page itself — because that's where you already are when you're making a sourcing or pricing call.
It's a focused tool that does one thing well. Not a suite. Not a subscription you'll only use 10% of.
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TRIAL & PRICING
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WORKS ON
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PRIVACY
AmzCompanion only reads the information on Amazon product pages it needs to calculate inventory insights. It does not:
If you have an active subscription, the extension contacts our servers to verify your license status. That's it.
Full privacy policy: https://amzcompanion.com/privacy
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SUPPORT
Questions, feature requests, or bugs — open the extension, click Help → Contact support. Or email support@amzcompanion.com.
Built by Amazon sellers, for Amazon sellers.
AmzCompanion is a Chrome extension for Amazon sellers who need to size up competition before they source, price, or list. It overlays live seller and inventory intelligence directly on any Amazon product page — so you get the answer in 2 seconds instead of 20 minutes of manual checking.
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WHAT YOU SEE ON EVERY LISTING
- Every seller on the ASIN, with their estimated stock count
- FBA vs FBM vs Amazon-direct split (both as counts and percentages)
- Price, condition, Prime eligibility, and delivery estimate per seller
- Filters for price range, seller type, condition, and stock
- The total number of offers counted and the real-stock total
No CSV uploads. No dashboards. No pasting ASINs into a research tool. It's just there, on the page you're already looking at.
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WHAT SELLERS USE IT FOR
- Arbitrage & wholesale sellers — Spot low-stock competitors before they restock, so you can time your listing entry to capture the buy box.
- Private-label sellers — Check whether any third-party sellers have piggybacked your listing and how much inventory they actually hold.
- Agencies & VAs — Screen dozens of source-lead ASINs in the time it used to take to check one.
- Anyone doing product research — Answer "is this listing worth entering?" from the seller distribution alone.
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WHY IT'S DIFFERENT
Most Amazon seller tools (Jungle Scout, Helium 10, Keepa) pull you into a separate dashboard and ask you to paste in ASINs or upload files. AmzCompanion runs inline, on the product page itself — because that's where you already are when you're making a sourcing or pricing call.
It's a focused tool that does one thing well. Not a suite. Not a subscription you'll only use 10% of.
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TRIAL & PRICING
- Free to install.
- 14-day trial of all features — no credit card required.
- Paid plans from US$12/month. Solo (1 seat), Plus (2 seats), Scale (5 seats).
- Cancel anytime.
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WORKS ON
- Every Amazon marketplace worldwide — including amazon.com, .co.uk, .com.au, .ca, .de, .fr, .it, .es, .co.jp, .in, .com.mx, .com.br, .nl, .sg, .ae, .sa, .se, .pl, and .com.tr.
- Any Amazon product listing page with visible offer data.
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PRIVACY
AmzCompanion only reads the information on Amazon product pages it needs to calculate inventory insights. It does not:
- Read your Amazon Seller Central data
- Read any personal email, documents, or non-Amazon browsing
- Sell or share your personal information
- Track you across other sites
If you have an active subscription, the extension contacts our servers to verify your license status. That's it.
Full privacy policy: https://amzcompanion.com/privacy
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SUPPORT
Questions, feature requests, or bugs — open the extension, click Help → Contact support. Or email support@amzcompanion.com.
Built by Amazon sellers, for Amazon sellers.
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Access your data for www.amazon.ae
- Access your data for www.amazon.com
- Access your data for www.amazon.co.uk
- Access your data for www.amazon.es
- Access your data for www.amazon.nl
- Access your data for www.amazon.mx
- Access your data for www.amazon.it
- Access your data for www.amazon.in
- Access your data for www.amazon.de
- Access your data for www.amazon.fr
- Access your data for www.amazon.cn
- Access your data for www.amazon.ca
- Access your data for www.amazon.com.au
- Access your data for www.amazon.com.br
- Access your data for www.amazon.com.mx
- Access your data for www.amazon.com.tr
- Access your data for www.amazon.co.jp
- Access your data for www.amazon.pl
- Access your data for www.amazon.sa
- Access your data for www.amazon.se
- Access your data for www.amazon.sg
Optional permissions:
- Access your data for api.amzcompanion.com
- Access your data for www.amazon.ae
- Access your data for www.amazon.com
- Access your data for www.amazon.co.uk
- Access your data for www.amazon.es
- Access your data for www.amazon.nl
- Access your data for www.amazon.mx
- Access your data for www.amazon.it
- Access your data for www.amazon.in
- Access your data for www.amazon.de
- Access your data for www.amazon.fr
- Access your data for www.amazon.cn
- Access your data for www.amazon.ca
- Access your data for www.amazon.com.au
- Access your data for www.amazon.com.br
- Access your data for www.amazon.com.mx
- Access your data for www.amazon.com.tr
- Access your data for www.amazon.co.jp
- Access your data for www.amazon.pl
- Access your data for www.amazon.sa
- Access your data for www.amazon.se
- Access your data for www.amazon.sg
Required data collection, according to the developer:
- Authentication information
- Website activity
- Website content
Optional data collection, according to the developer:
- Personally identifying information
- Technical and interaction data
More information
- Add-on Links
- Version
- 1.10.0
- Size
- 344.56 KB
- Last updated
- 2 months ago (Mar 10, 2026)
- Related Categories
- License
- All Rights Reserved
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection