Chrome Web Store Scraper - Extensions, Ratings & Permissions

Get Chrome Web Store extension data in one clean table: users, rating, rating count, version, last update date, size, languages, developer, support and privacy-policy URLs, plus every extension's permissions and host permissions with a simple risk score. Scrape a category, a search or a list of extension URLs/IDs, discover more extensions through related extensions, and track new versions of any extension.

No login, no API key, no browser. Polite rate, honest User-Agent.

What you get

• Listing data: name, URL, short and long description, category, users, rating, rating count, icon and screenshots.
• Release data: version, last update date, size, supported languages, minimum Chrome version, Manifest V2/V3.
• Developer: developer/publisher name, support URL, privacy-policy URL.
• Security: permissions, host permissions, optional permissions, content-script match patterns, the risky ones (all sites, tabs, cookies, history, webRequest, debugger, proxy...) and a 0-10 risk score.
• Discovery: related extension IDs, and optional crawling of related extensions to map a whole niche.
• Only-new mode: get each extension once, or get it again whenever it publishes a new version.

Use cases

• Market research: the biggest and fastest-growing extensions in any niche (SEO, AI, coupons, LinkedIn, productivity), with users and ratings.
• Competitor tracking: get notified when a competitor ships a new version.
• Security and IT teams: audit which extensions request access to all websites, cookies or browsing history.
• Lead generation (B2B): companies that build extensions in your niche, with their support and website links.
• Product ideas: find niches with many users but low ratings.

Input examples

Top extensions in a category:

{ "mode": "category", "categories": ["productivity/tools"] }

All categories, only extensions with 10k+ users:

{ "mode": "category", "categories": ["all"], "minUsers": 10000, "maxItems": 2000 }

Search and map the niche through related extensions:

{ "mode": "search", "searchQueries": ["seo", "chatgpt"], "relatedLimit": 300, "maxItems": 500 }

Daily alert when competitors publish an update:

{ "mode": "extensions", "extensions": ["ddkjiahejlhfcafbddmgiahcphecmpfh"], "onlyNew": true, "onlyNewTracks": "new_versions" }

Output example

{
  "id": "ddkjiahejlhfcafbddmgiahcphecmpfh",
  "name": "uBlock Origin Lite",
  "url": "https://chromewebstore.google.com/detail/ublock-origin-lite/ddkjiahejlhfcafbddmgiahcphecmpfh",
  "category": "make_chrome_yours/privacy",
  "users": 22000000,
  "rating": 4.532,
  "ratingCount": 3772,
  "version": "2026.1026.1812",
  "updatedAt": "2026-10-27T00:44:43Z",
  "size": "8.59MiB",
  "developer": "Raymond Hill (gorhill)",
  "manifestVersion": 3,
  "permissions": ["activeTab", "alarms", "declarativeNetRequest", "scripting", "storage"],
  "hostPermissions": ["<all_urls>"],
  "riskyPermissions": ["<all_urls>", "scripting"],
  "riskScore": 5
}

Pricing

$1.00 per 1,000 extensions.

Notes

• A category page lists about 32 extensions per sort order. Use relatedLimit or search to go further.
• The Chrome Web Store rounds user counts for large extensions (for example 22,000,000).
• Developer e-mail addresses are intentionally not collected.
• RUN_SUMMARY in the key-value store shows counts, IDs not found and the last error.