Nanobrowser: AI Web Agent & Automation

Automate web tasks with AI! NanoBrowser is an open-source Chrome extension that lets you extract data, fill forms, and more.

As of June 2026, Nanobrowser: AI Web Agent & Automation has 50,000 users and a 3.88/5 rating from 59 reviews in the Productivity category.

Usersno change0%
50.0K
50,000
Ratingdown 2.0 percent2.0%
3.88
59 reviews
Reviewsup 11.3 percent+11.3%
59
Version
0.1.13
Manifest V3

History

5 snapshots

Tracking since Apr 18, 2026.

50.6K50.0K49.4KApr 18, 2026Jun 5, 2026
View as table
DateUsersRatingReviewsVersion
Apr 18, 202650.0K3.96530.1.13
Apr 28, 202650.0K3.93550.1.13
May 7, 202650.0K3.95560.1.13
May 15, 202650.0K3.96570.1.13
May 24, 202650.0K3.91580.1.13
Now50.0K3.88590.1.13

Permissions & access

Permissions
storagescriptingtabsactiveTabdebuggerunlimitedStoragewebNavigationsidePanel
Host access
<all_urls>

Screenshots

Nanobrowser: AI Web Agent & Automation screenshot 1Nanobrowser: AI Web Agent & Automation screenshot 2Nanobrowser: AI Web Agent & Automation screenshot 3Nanobrowser: AI Web Agent & Automation screenshot 4Nanobrowser: AI Web Agent & Automation screenshot 5

About

An open-source and local-first web automation agent that runs in your browser.

📦 Repository: https://github.com/nanobrowser/nanobrowser
⭐ Our repository has been starred by 4.7k developers in 4 weeks! 

🔥Why Nanobrowser?

1️⃣ 100% Free: No subscription fees or hidden costs. Just install and use your own API keys
2️⃣ Privacy-Focused: Agent runs in your local browser instead of cloud
3️⃣ Flexible LLM Options: Supports SOTA LLM models as well as local models
4️⃣ Fully Open Source: Complete transparency in how your browser is automated

📊Key Features:

✅ Multi-agent System: Specialized agents collaborate to accomplish complex web tasks.
✅ Interactive Side Panel: Intuitive chat interface with real-time status updates.
✅ Task Automation: Seamlessly automate repetitive tasks across websites.
✅ Follow-up Questions: Ask contextual follow-up questions about completed tasks.
✅ Conversation History: Easily access and manage your interaction history.
✅ Multiple LLM Support: Connect your preferred LLM providers and assign different models to different agents.

🌐 Browser Support

✅ Chrome
✅ Edge
❌ Firefox
❌ Safari
❌ Other Chromium variants (Opera, Arc, etc.)

⚠️ While Nanobrowser may work on some Chromium-based browsers, they are not officially tested and supported.

🚀 Quick Start

1️⃣ Click the Nanobrowser icon in your toolbar to open the sidebar.
2️⃣ Click the Settings icon (top right).
3️⃣ Add your preferred LLM API keys.
4️⃣ Choose which model to use for different agents (Navigator, Planner, Validator).
5️⃣ Send your commands to Nanobrowser

💡 Prompt Examples

1️⃣ Go to TechCrunch and extract top 10 headlines from the last 24 hours
2️⃣ Look for the trending Python repositories on GitHub with most stars
3️⃣ Find a portable Bluetooth speaker on Amazon with a water-resistant design, under $50. It should have a minimum battery life of 10 hours

🤝 Contributing

We are open source. We need your help to make Nanobrowser even better! Contributions of all kinds are welcome:
1️⃣ Share prompts & use cases in our Discord server
2️⃣ Create issues or even submit pull requests on our Github repository


❤️ Loving Nanobrowser? Leave us a review on the Chrome Web Store and help others discover this powerful extension! Your support means everything to us.

Technical

Version
0.1.13
Manifest
V3
Size
983KiB
Min Chrome
88
Languages
3
Featured
No

Metadata

ID
imbddededgmcgfhfpcjmijokokekbkal
Developer ID
u874aa2dc4226535b16f3eecbe2c50e70
Developer Email
[email protected]
Created
Mar 10, 2025
Last Updated (Store)
Nov 23, 2025
Last Scraped
Jun 5, 2026
Website
nanobrowser.ai

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Data sourced from the Chrome Web Store · last verified Jun 5, 2026.