Web Scraper Chrome Extensions

Pick one per job:

• One list or table, fast: Instant Data Scraper.
• A popular site someone already mapped: Data Miner, with ready-made queries, pagination and bulk runs over a list of URLs.
• A category page, then each product page: Web Scraper, with point-and-click templates (sitemaps).
• An HTML table only: Table Capture, or Google Sheets' IMPORTHTML without any extension.
• Varied layouts, described in plain words: Thunderbit, an AI extension.

All five put the data in a spreadsheet; they differ in what they collect and in what the free version allows. The exports and free terms below are as each vendor's own page states them:

What each one cannot do: Instant Data Scraper does not open detail pages; Web Scraper templates and Data Miner queries break when a site changes its layout; Table Capture reads tables only; check an AI extension's output on a sample before you trust a whole sheet.

If you only need a table from one page, you may not need an extension at all: Google Sheets' =IMPORTHTML("https://example.com/page", "table", 1) pulls the first HTML table into a sheet. See web scraping with Google Sheets and web scraping into Excel.

Some template-based extensions also sync your templates to the vendor's cloud and can run them there on a schedule. That turns them into an online scraper with the vendor's IPs and plans: see online web scrapers.

A scraper extension works on the page your browser has already loaded. It reads the page's DOM, the structure the browser built after the page's scripts ran, finds repeating elements such as product cards or table rows, and copies their text and links into a table. Because it sees what you see, it handles most JavaScript-heavy pages that a simple HTTP scraper would get empty.

To scrape more than one page, the extension clicks the site's "Next" button or scrolls down, waits for new items, and adds them to the table. Every page it loads is a normal visit from your browser, with your cookies, your session and your IP address.

Instant Data Scraper is a free Chrome extension that detects tabular data on a page without any setup. The steps and button names below follow its publisher's guide (webrobots.io/instantdata):

1. Install it from the Chrome Web Store and pin its icon to the toolbar.
2. Open the first page of the list you want, such as search results, a category page or a directory, and let it load fully.
3. Click the extension's icon. It opens a window with a preview of the data it detected.
4. Check the selection. If it picked the wrong block, click "Try another table" until the preview shows your list.
5. Set up pagination. Click "Locate 'Next' button", then click the site's next-page button or link. Set the "Crawl delay", the wait between pages: the default is 1 second, and a few seconds is kinder to the site and gives slow pages time to load.
6. Click "Start crawling". The statistics show the pages and rows collected so far.
7. Download the table as CSV or XLSX, at any point during the crawl or at the end.
8. Clean the file. Expect some unwanted columns and column names to rename.

The data stays in your browser: the publisher's guide says the extension "does not send data to Web Robots". That guide also says the extension is no longer owned, developed or supported by Web Robots, so check who publishes the version you install and whether its button names still match.

For a product list that keeps loading more results as you scroll, use the Infinite Scroll option instead of "Locate 'Next' button". Instant Data Scraper added infinite scroll in version 0.2.0, published on December 11, 2019 (release note). It scrolls down and, per the publisher's guide, detects when new data stops loading.

1. Open the listing and wait until the first product cards are visible.
2. Click the extension's icon and confirm that the preview shows the product cards (name, price, link), not the menu or the filters.
3. Turn on Infinite Scroll.
4. Set the delay to 2 to 5 seconds, so each new batch finishes loading before the extension reads it.
5. Click "Start crawling" and watch the row count grow. You do not have to stop it: the publisher's guide says the extension "automatically detects when loading new data stops".
6. Compare the row count with the number of results the site shows, such as "1,240 products". The count rises after each pause; if it stays flat for two checks, the list has ended or the delay is too short.
7. Download CSV or XLSX.
8. Check for rows that loaded too late: sort the sheet by the price column and look for blank cells.

When it goes wrong:

On a very long list, the extension keeps every row in the browser, so stop and download in parts. More on how pages load the next items: web scraping pagination.

Extensions are the quickest way to get a list out of a page, and the limits come from running inside one browser:

• Speed: they load pages one at a time in your browser, so hundreds of pages take minutes and thousands take hours.
• Your IP: every page comes from your connection, and a site that limits requests per IP will slow you down or block you.
• Your session: pages you are logged in to are scraped as you, which works for data you are entitled to, and puts your account at risk if the site forbids scraping.
• No schedule: most extensions run only while you watch; the browser has to stay open.
• Fixes by hand: when the site's layout changes, you redo the selection or the template.

When a job outgrows these limits, move to a no-code app, code, or an API: see no-code web scrapers and the best web scraping tools.

A scraper extension needs permission to "read and change all your data on all websites", because it has to read the pages you scrape. That is normal for this kind of tool, and it is also why the publisher matters. Before you install one:

• Check the publisher and the listing: the number of users, recent reviews, and the date of the last update. An extension can change hands, as Instant Data Scraper did, so check the current publisher.
• Read the privacy section of the Chrome Web Store listing: does the scraped data stay in your browser, or go to the vendor's servers?
• Keep it to a separate Chrome profile used only for scraping, without your email or banking sessions.
• Remove extensions you no longer use.

Instant Data Scraper is built for Chrome. Other Chromium-based browsers, such as Microsoft Edge, can install extensions from the Chrome Web Store, so it usually works there too. For Firefox, check addons.mozilla.org for a Firefox version of the extension you want; Chrome extensions do not install in Firefox directly. Chrome for Android does not run extensions, so on a phone, use an online scraper or run the job on a computer.