🧩 Chrome Web Store Scraper

Chrome Web Store Scraper is a free and open-source scraper that gets you unlimited detailed Chrome Web Store data for free.

✨ What Can I Get?

• 🧩 Full details on 300K+ extensions & themes — users, rating, version, size, permissions, privacy practices & the full manifest
• 📇 Developer contacts for B2B leads — email, phone, address, legal name, DUNS number & every extension a publisher ships
• ⭐ Up to 20,000 reviews per extension — full text, stars, version, language & the developer's reply, in 4 sort orders
• 📈 Top charts, 30 categories & 100+ curated collections — plus a direct .crx download link for any extension

🎥 Example: A Full Chrome Web Store Extension

{
  "id": "kbfnbcaeplbcioakkpcpgfkobkghlhen",
  "name": "Grammarly: AI Writing Assistant and Grammar Checker App",
  "link": "https://chromewebstore.google.com/detail/grammarly-ai-writing-assi/kbfnbcaeplbcioakkpcpgfkobkghlhen",
  "summary": "Grammarly for Chrome helps you write with confidence. Get AI support for grammar, clarity, and tone, from first draft to final edit.",
  "rating": 3.87,
  "rating_count": 43166,
  "users": 40000000,
  "category": { "id": 3, "slug": "productivity/communication", "name": "Communication" },
  "is_featured": true,
  "is_established_publisher": true,
  "version": "14.1346.0",
  "updated_at": "2026-11-09T16:20:22Z",
  "size": "19.03MiB",
  "permissions": ["scripting", "sidePanel", "offscreen"],
  "host_permissions": ["http://*/*", "https://*/*"],
  "developer": {
    "legal_name": "Grammarly, Inc.",
    "email": "support@grammarly.com",
    "phone": "+16282338294",
    "address": "548 Market St Ste 35410\nSan Francisco, CA 94104-5401\nUS",
    "duns_number": "031633083",
    "is_trader": true,
    "publisher": { "id": "u7431803589585a11dd7aea578e1005d0", "name": "Grammarly", "link": "https://chromewebstore.google.com/publisher/grammarly/u7431803589585a11dd7aea578e1005d0" }
  },
  "privacy": {
    "policy_link": "https://www.grammarly.com/privacy-policy",
    "collects_data": true,
    "data_collected": ["personally_identifiable_information", "personal_communications", "location"]
  },
  "related": [
    { "id": "kdfieneakcjfaiglcfcgkidlkmlijjnh", "name": "AI Grammar and Spell Checker by Ginger", "rating": 4.03, "users": 500000 }
  ]
}

Trimmed for readability.

🚀 Unlimited Free Chrome Web Store Data — Get It in 60 Seconds

1️⃣ Clone and install:

git clone https://github.com/omkarcloud/chrome-web-store-scraper
cd chrome-web-store-scraper
python -m pip install -r requirements.txt

2️⃣ Start the API:

python run.py

3️⃣ Get your first data:

curl "http://localhost:8000/extensions/details?extension=kbfnbcaeplbcioakkpcpgfkobkghlhen"

{
  "id": "kbfnbcaeplbcioakkpcpgfkobkghlhen",
  "name": "Grammarly: AI Writing Assistant and Grammar Checker App",
  "link": "https://chromewebstore.google.com/detail/grammarly-ai-writing-assi/kbfnbcaeplbcioakkpcpgfkobkghlhen",
  "rating": 3.87,
  "rating_count": 43166,
  "users": 40000000,
  "category": { "id": 3, "slug": "productivity/communication", "name": "Communication" },
  "version": "14.1346.0",
  "updated_at": "2026-11-09T16:20:22Z",
  "size": "19.03MiB",
  "permissions": ["scripting", "sidePanel", "offscreen", "tabs", "notifications", "cookies", "identity", "storage"],
  "developer": {
    "legal_name": "Grammarly, Inc.",
    "email": "support@grammarly.com",
    "phone": "+16282338294",
    "duns_number": "031633083"
  },
  "privacy": {
    "collects_data": true,
    "data_collected": ["personally_identifiable_information", "personal_communications", "location", "user_activity", "website_content"]
  }
}

All 10 endpoints are now live at http://localhost:8000.

📚 Endpoints

10 endpoints cover everything you need.

Endpoint	Path	Returns
Extension Details	/extensions/details	Everything about one extension: users, rating, contacts, privacy, manifest
Search Extensions	/extensions/search	50 extensions or themes per page, filtered by rating and badges
Extension Reviews	/extensions/reviews	Full-text reviews, 100 per page, with the developer's reply
Download Extension	/extensions/download	Latest version, size, SHA-256 and a direct .crx download link
Publisher Details	/publishers/details	Publisher email, phone, address, DUNS and every extension they publish
Top Charts	/charts/list	The store's 25 most popular, trending or new and notable
Categories	/categories/list	All 30 categories with slugs, ready for Category Extensions
Category Extensions	/categories/extensions	One category, 50 per page, ranked by relevance, rating, newest or trending
Collections	/collections/list	100+ curated collections with titles and descriptions
Collection Extensions	/collections/extensions	Every extension in one curated collection, in the store's order

🔍 Exploring Parameters

The same API is published on RapidAPI, and its playground is the easiest place to try parameters and see raw responses. Once a request looks right, run it locally for unlimited free data.

1. Subscribe to the free plan — 1,000 calls/month, no credit card.
2. Try the endpoints in the playground — every param is pre-filled, so you see real data in one click.
3. Copy the generated code and replace https://best-chrome-web-store-scraper-free-1000-calls.p.rapidapi.com with http://localhost:8000. It will now run against your local API.

import requests

# generated by the playground, host swapped for the local API
response = requests.get(
    "http://localhost:8000/extensions/reviews",
    params={"extension": "kbfnbcaeplbcioakkpcpgfkobkghlhen", "sort": "lowest"},
)
print(response.json())

💬 Have Questions? We Have Answers.

You're a developer — we know how hard completing a project can be. So we offer full support: just message us and we'll reply ✅ with a solution within 1 working day.

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