Review Harvest for Amazon

Review Harvest for Amazon turns an Amazon search results page into a CSV of product reviews. You stay signed in to your own Amazon account, pick filters in a small popup, and get a single CSV in your Downloads folder.

No sign-up, no API key, no account tied to the extension. Everything runs locally in your browser.

How we're different

Other Amazon review scrapers on the Chrome Web Store have one of two problems: they scrape only one product at a time (you have to open each product page manually), or they gate real usage behind a paywall that caps you at 10 to 100 reviews per day. Review Harvest for Amazon is built the other way around.

One run, dozens of products. Point it at an Amazon search results page and it collects reviews for up to 50 products automatically. Competitors still make you visit each product page.

Free while in beta. No credit card, no paywall. You export everything you ask for. When we add paid tiers, the email signup (optional, post-first-run) is how you'll find out.

Uses your own Amazon session. Credentials are never stored or transmitted.

A typical run takes a few minutes to harvest all reviews.

What it does

Reads products directly from the Amazon search or browse page you are viewing. Filters by star rating, verified purchases, and sort order (most recent or most helpful). Saves one CSV to your Downloads folder when the run finishes and shows a desktop notification. Keeps a list of recent runs so you can re-download past scrapes without re-running them.

How to use

1. Install the extension and pin it to your toolbar.
2. Sign in to amazon.com as you normally would.
3. Run an Amazon search.
4. Click the Review Harvest for Amazon toolbar icon.
5. Set filters: number of products to scrape (1 to 50), star ratings, reviews per product (10 to 50), verified purchases only, and sort order.
6. Click Scrape. A progress bar shows progress. You can click Cancel any time — the extension still saves a CSV of what it has so far.
7. When the run completes, Chrome saves the CSV to your Downloads folder and shows a notification.
8. To re-download a past result, switch to the Recent tab and click re-download.

A run takes a few minutes to harvest all reviews. Don't run multiple scrapes in parallel.

What you get

Each run produces a single CSV saved as amazon-reviews-<query>-<YYYY-MM-DD>.csv. The file opens cleanly in Excel, Sheets, and any spreadsheet tool.

Columns:

asin — the product's Amazon ASIN.
brand — the brand as shown on the product page (best effort; empty string if not detected).
productTitle — the product title from the search results card.
stars — integer 1 to 5.
title — the review's headline.
body — the review text.
date — as Amazon displays it, for example "Reviewed in the United States on March 26, 2026".
verified — true if Amazon marks the review as a Verified Purchase, otherwise false.
helpful — number of helpful votes on the review, or 0 if none shown.
reviewerName — the public display name shown next to the review.
error — populated only when an entire product fails to scrape. Normal review rows leave this blank.

Strings that could be misread as a formula by Excel or Sheets are escaped, so opening the CSV can't trigger anything.

Privacy

Everything stays on your machine. The extension does not handle, store, or transmit your Amazon credentials. No telemetry, no analytics. The CSV is written directly to your Downloads folder. The list of recent runs is stored in Chrome's local extension storage on your device. You can clear it from the Recent tab.

Requirements

Desktop Chrome. An Amazon account, signed in at amazon.com in the same browser profile. The active tab must be an Amazon search or browse page when you open the popup.

Not in scope

This extension is scoped to amazon.com (the US marketplace). Other Amazon marketplaces (amazon.co.uk, amazon.de, amazon.co.jp, etc.) are not supported. It does not include product research, ranking analysis, review sentiment classification, cross-run deduplication, or seller-side analytics.

Frequently asked questions

Will using this extension get my Amazon account banned?
No. The extension uses your normal signed-in session. Your Amazon credentials are never transmitted, read, or stored.

Why does it need me to be signed into Amazon?
Amazon only shows reviews to signed-in users. The extension doesn't add that requirement — Amazon does.

What's the real review limit per product?
Amazon itself caps its review listings at around 100 reviews per product. That's a platform limit, not ours. A mode that can raise the practical ceiling to roughly 500 per product is on the roadmap — sign up for updates via the post-scrape banner if you want it.

Is it really free? What's the catch?
While we're in beta, yes — completely free, no cap, no credit card, no subscription. When we add paid tiers (likely: Google Sheets export, scheduled scrapes, cross-run deduplication), anyone who opted into the email list will get notified first. Opting in is optional.

Why does it take a few minutes?
A full run across dozens of products collects hundreds of reviews, which takes a bit of time. You can close the popup and switch tabs — the run continues in the background.

Does it work on amazon.co.uk / .de / .ca / other country stores?
Not yet. Today the extension is scoped to amazon.com. Multi-marketplace support is on the roadmap.

Do you collect or store the reviews I scrape?
No. Every review is written to a CSV on your own computer. It doesn't pass through our servers. The only thing we store, and only if you explicitly opt in via the email banner, is your email address — nothing else.

What data does the extension collect?
Two things, both explicit opt-in: (1) the email you type in the post-scrape signup banner, if you use it at all; (2) an anonymous install UUID, sent only with that email submission. Nothing else. Full details in the privacy policy.

What if I see duplicate reviews in the CSV?
You shouldn't. If you do, that's a bug — please email [email protected] with the ASIN and we'll fix it.

What if the extension says "0 reviews" but the product clearly has reviews?
Amazon occasionally changes their page structure. We ship fixes quickly — update the extension or wait a day. If it persists, contact us.