Best free Amazon listing checker? 11 tools compared.

How we compiled this

This page is published by Listimo. Every fact comes from the vendors' official pages, read on 9 November 2026; we did not test the tools. “Not stated” means the vendor's page says nothing about it. Listimo is listed by the same criteria as the others.

The tools one by one

Amazon Seller Central: Listing Quality Dashboard

The dashboard sits in your seller account; Amazon says to open it via Improve Listing Quality under Catalog. It recommends missing product information, for example to show up in search filters or reduce returns. It is the only source here with Amazon's own data on your listings, including whether a listing is suppressed. It cannot check competitors.

Listimo Listing Check

You enter an ASIN, an Amazon link or the texts by hand in the listing checker. The score has 100 points across seven areas: title 22, bullet points 18, images and video 16, search terms 14, compliance 12, A+ 10, description 8. For title, bullet points, search terms and description, fixed rules count 60% and the AI rating 40%; a clear guideline breach caps the score at 59. You also get a live comparison with the top 10 search results and measured search volumes. Limits: without an account you see the score and first findings; the full analysis needs a free account. Without Seller Central access, Listimo sees neither backend search terms nor suppression reasons.

SellerSonar Listing Quality Checker

SellerSonar takes an ASIN or URL, checks images, video, copy, A+, ratings and restricted words, and returns a Listing Quality Score. According to the vendor, basic checks need no account. The page does not say which marketplaces the checker covers; the selector showed amazon.com.

Trellis Listing Quality Checker

Trellis rates an ASIN with a score and two sub-scores: searchability (including title, price, main image) and buyability (images, videos, bullets, A+, reviews). So price and ratings count too. The page does not state marketplaces, scale or limits.

Thunderbit Amazon Listing Quality Checker

Thunderbit runs as a Chrome extension with a free account. Besides a URL it accepts files (PDF, DOCX, TXT, CSV) and pasted text, so it also works for drafts. The report flags compliance risks such as unsubstantiated superlatives and gives a five point action plan. Supported Amazon domains are not named.

UNITIX Listing Audit

UNITIX is an Amazon advertising and growth agency; the audit is a free tool on its website. It scores an ASIN or URL from 0 to 100 without sign-up, competitors included, and factors in reviews and the Buy Box. It covers eight marketplaces, including the US, the UK and Germany, with up to ten checks per hour.

Keywords.am Listing Audit

Keywords.am grades an ASIN from A+ to F with a prioritized fix list, including backend search terms and limits. The free plan includes three reports per month; paid plans start at 39 US dollars per month, billed yearly. It mentions 21 marketplaces without listing them.

Helium 10 Listing Analyzer

You see the full report after signing up. According to the Helium 10 blog (as of 2023), it takes one ASIN or up to ten as a group, compares against competitors and shows keywords with rank and search volume. The selector showed amazon.com, amazon.ca and Mexico; others were not visible.

AMZ Advertise Listing-Analyse

AMZ Advertise, an Amazon Ads agency in Flensburg, Germany, offers the analysis free on its German-language site. You upload the Seller Central category report and get a score from 0 to 100 per product for the whole catalog, processed in your browser according to the page. Access requires a contact form, and competitors' listings cannot be checked.

Listvaro Amazon Listing Audit

Listvaro checks pasted text, CSV files with up to 500 rows, or fields imported via bookmarklet against limits such as 75 title characters and 250 bytes of backend search terms, without sign-up and in your browser. According to the page it does not check images or A+, and the only category listed so far is Home & Kitchen.

Listora Amazon Listing Grader

Listora scores an ASIN, link or pasted text from 0 to 100 without sign-up, covering copy, image count, video, A+, prohibited terms, health claims and character limits on eleven Amazon sites. The page does not say how many free checks you get per day or whether rules or AI do the scoring.

Frequently asked questions

Which free Amazon listing checkers work without signing up?

According to the vendors' pages (November 2026), UNITIX, Listora and Listvaro work without sign-up, as do SellerSonar's basic check and Keywords.am's basic report. Listimo shows the score and first findings without sign-up. Thunderbit and Helium 10 need an account.

Can an external tool tell me why Amazon suppressed my listing?

Not with certainty. External listing checkers read the public product page or the text you enter. Whether Amazon has suppressed a listing, and why, only Seller Central shows. External checkers help you catch common triggers such as overlong titles or prohibited terms in advance.

Do listing checkers check backend search terms?

Backend search terms are not visible on the product page. They can be checked reliably when you enter or upload them yourself, for example in Listvaro, Thunderbit or AMZ Advertise. Keywords.am also lists them as a check; UNITIX does not score them for listings you do not own.

Are scores from different listing checkers comparable?

No. Trellis includes price and ratings, UNITIX also the Buy Box, Listimo only rates content you control, and Keywords.am gives letter grades. Only compare a score with earlier results from the same tool.

Which listing checkers name amazon.co.uk and amazon.de?

Listimo (12 marketplaces), Listora (11) and UNITIX (8) name both; Listvaro names rules up to amazon.de. Keywords.am mentions 21 marketplaces without a list. For SellerSonar, Trellis, Thunderbit, Helium 10 and AMZ Advertise, the tool pages did not name them (November 2026).

Can I check an Amazon listing before uploading it?

Yes, if the tool accepts text or files: Thunderbit takes text and files, Listvaro text and CSV, and Listora and Listimo accept texts entered by hand. Tools that only accept an ASIN need a published listing.

More free tools: check which Amazon reviews you can get removed, Rufus checker for the questions buyers ask Amazon's AI, Amazon FBA calculator for the UK and Europe, Amazon FBA calculator for amazon.com, FNSKU label generator, UPC code generator with how to get real UPCs, EAN and UPC check digit calculator, Amazon image requirements checker, A+ content image sizes for every module, AI image label checker for Amazon, GPSR checklist for Amazon, Amazon Brand Registry checklist with trademark fees, unit price calculator for the German Grundpreis, ACOS and ROAS calculator for your ads, search terms byte counter for backend keywords and titles, product description formatter with line breaks, listing checker with a score from 0 to 100. All in one place: free Amazon seller tools. Numbers from over 1,200 checked listings: Amazon Listing Study 2026.