Chrome Web Store Scraper - Full Catalogue & Dev Emails

Extract structured data for any Chrome Web Store extension: rating, weekly users, category, developer name and email, version, size, last-updated date, supported languages, description and user reviews. Scrape specific extensions by URL, discover extensions by keyword, or crawl the entire ~320,000-extension catalogue.

Why use this scraper

The Chrome Web Store has no public API for extension metadata, developer contact details or reviews, yet it is the main distribution channel for every browser extension business: productivity tools, ad blockers, scrapers, AI assistants and thousands of niche utilities. Anyone doing competitor research, sourcing leads for extension developers, or tracking how a category of extensions is trending needs a way to pull hundreds or thousands of listings into one structured dataset instead of opening each extension page by hand.

Extension data also shifts constantly: user counts grow, new versions ship, new competitors launch. Running this actor on a schedule against the same keyword or category keeps a dataset current without anyone manually re-checking the store.

Overview

Give the actor specific extension URLs or IDs, one or more search keywords, or set scrapeAllApps to crawl the whole store via its own sitemap, and it returns one record per extension with every public field the store exposes, including the developer's contact email when they chose to publish one. A 50-extension keyword search finishes in under two minutes. Cost is $0.005 per extension actually scraped; failed or empty pages are never charged.

Supported inputs

• Specific extensions (extensionUrls) - full detail-page URLs or raw 32-character extension IDs. The fastest mode, since no search or crawl is needed.
• Keyword search (queries) - one or more search terms (e.g. "ad blocker", "password manager"); every matching extension is discovered and then fully scraped.
• Full catalogue (scrapeAllApps: true) - crawls every extension in the store via its sitemap, capped by maxItems; sitemapShardLimit lets you sample a fraction of the ~33 sitemap shards instead of the whole store.
• Reviews (includeReviews: true, with maxReviewsPerExtension and reviewsLanguage) - adds a reviews array to each extension, and works with any of the three modes above.

Use cases

• Competitor and market research - pull every extension in a category or matching a keyword to see how many competitors exist, their user counts and their ratings.
• Developer-lead generation - crawl a category or keyword and collect developerEmail for outreach to extension makers (agencies, acquirers, ad networks).
• Extension due diligence - before acquiring or partnering with an extension, pull its full profile and recent reviews in one call.
• Trend tracking - run the same keyword or category on a schedule and compare users and ratingCount over time to see which extensions are growing.
• Review mining - attach reviews to a list of extensions to analyse complaints, feature requests or sentiment at scale.

How it works

Extension detail pages and the sitemap are read directly over HTTP, which keeps those modes fast. Keyword search uses a real browser because the store's search results are rendered client-side; once the matching extensions are identified, their detail pages are then read the same way as the other modes. Reviews are paged from the store's own review endpoint in batches of 10 up to maxReviewsPerExtension.

Input configuration

Mode 1: specific extensions by ID

{
  "extensionUrls": ["cjpalhdlnbpafiamejdnhcphjbkeiagm", "ublock-origin"],
  "maxItems": 10
}

Mode 2: keyword search with reviews

{
  "queries": ["ad blocker"],
  "maxItems": 50,
  "includeReviews": true,
  "maxReviewsPerExtension": 20
}

Mode 3: sample of the full catalogue

{
  "scrapeAllApps": true,
  "maxItems": 500,
  "sitemapShardLimit": 2
}

Output sample

Real output from a keyword search for "upwork scraper" (trimmed to the main fields):

{
  "id": "aahgcabppapofkelkchbdhkemingdemg",
  "name": "Upwork Email Scraper",
  "url": "https://chromewebstore.google.com/detail/aahgcabppapofkelkchbdhkemingdemg",
  "rating": 1,
  "ratingCount": 1,
  "users": 224,
  "category": "Tools",
  "categorySlug": "tools",
  "version": "1.0.1",
  "size": "1.29MiB",
  "lastUpdated": "2024-08-26T04:57:12.000Z",
  "developer": "LetsFaster",
  "developerEmail": "help@letsfaster.com",
  "tagline": "One-click scrape emails from Upwork specific profile from search engine based on your keyword as Excel/CSV/JSON/HTML/XML file.",
  "languageCount": 48,
  "websiteUrl": "https://soleads.ai/",
  "query": "upwork scraper",
  "searchPosition": 3
}

Key output fields

Field	Type	Description
id	String	32-character extension ID
name / tagline / description	String	Extension name, short summary and full description
url / iconUrl	String	Detail page and icon image URL
rating / ratingCount	Number	Average rating and number of ratings
users	Number	Weekly user count as shown on the store
category / categorySlug	String	Store category
version / size / lastUpdated	String	Current version, package size, last-update date
developer	String	Developer or publisher name
developerEmail	String	Contact email, only present when the developer published one
languages / languageCount	Array / Number	Supported interface languages
websiteUrl / privacyPolicyUrl	String	Developer links, when present
query / searchPosition	String / Number	The keyword that found this extension and its rank in the results (keyword-search mode)
reviews	Array	{ author, rating, text, postedAt, version, language } per review, only when includeReviews is on

Pricing

Event	Price
Extension scraped	$0.005

Pay-per-event. Only successfully scraped extensions are charged; failed or empty pages cost nothing. Reviews are included in the same per-extension charge when includeReviews is on, there is no separate per-review fee.

What makes this richer than the competition

• automation-lab/chrome-web-store-reviews-scraper (19 users/30d) covers reviews only, not the extension's own profile (rating, users, category, developer, email), and charges per review on top of a run fee.
• tugelbay/chrome-web-store-intelligence (11 users/30d) covers similar extension and search data, but charges a separate event per search keyword in addition to per-extension pricing.

This actor returns the full extension profile, including the developer's contact email when published, in every mode, and includes reviews in the same flat per-extension price with no extra review charge. It is also one of the few in the Store that can crawl the entire catalogue via the sitemap rather than being limited to search results or a fixed list, which matters for lead-generation and market-sizing use cases where the goal is coverage of a whole category, not just the top few results a keyword search happens to surface.

Notes & limitations

• developerEmail is null when the developer did not publish a contact address on their profile; the actor never guesses one.
• Keyword search surfaces whatever the store's own search returns for that term, the same extensions a person typing the keyword into the store would see.
• Full-catalogue mode (scrapeAllApps) can return a very large number of extensions; use maxItems or sitemapShardLimit to cap a run before scraping the whole store.
• users reflects the weekly user count the store displays at scrape time; it is not a historical series, run the actor again later to track changes.

FAQ

Does it need a Google or developer account? No, all data is read from public extension and store pages.

Can I scrape by category instead of keyword? Not directly, there is no category input. Use a keyword that matches the category (e.g. "password manager") or sample the full catalogue and filter the output by category yourself.

Why is developerEmail sometimes empty? Because the developer did not list a public contact email on their Chrome Web Store profile. The actor reports exactly what the store shows.

How big can a full-catalogue run get? The catalogue has roughly 320,000 extensions across about 33 sitemap shards. Always set maxItems (or sitemapShardLimit to sample fewer shards) unless you intend to scrape the whole store.

Are reviews charged separately? No, includeReviews adds the reviews array to the same extension record at no extra cost, you only pay the per-extension price.

Can I combine specific extensions and a keyword search in one run? Yes, provide both extensionUrls and queries; the actor scrapes the specific extensions and the keyword matches together, deduplicated by ID.

For AI Agents & LLM Apps

This actor is callable from any MCP-compatible AI assistant through the Apify MCP server, and directly from code through the Apify API.

Via MCP (mcp.apify.com): add the Apify MCP server to your AI assistant (Claude, ChatGPT, or any MCP client) and call the gio21/chrome-web-store-scraper actor by name with queries or extensionUrls. The assistant gets back structured JSON it can reason over directly.

Via API (run-sync-get-dataset-items), for a synchronous call that returns the dataset items in the same request:

curl "https://api.apify.com/v2/acts/gio21~chrome-web-store-scraper/run-sync-get-dataset-items?token=<APIFY_TOKEN>" \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"queries": ["ad blocker"], "maxItems": 50}'

Disclaimer

This Actor is an independent tool and is not affiliated with, endorsed by, or sponsored by Google or the Chrome Web Store. All trademarks mentioned are the property of their respective owners.

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