Nanobrowser: AI Web Agent & Automation icon

Nanobrowser: AI Web Agent & Automation

by Alex Chen

v0.1.13 Updated Nov 23, 2025 983KiB
CWS
50K
Users
β˜… 3.96
53 reviews
#562
of 49.1K
tools
#98 of 12.2K
⚠️Requests 1 sensitive permission

Description

An open-source and local-first web automation agent that runs in your browser. πŸ“¦ Repository: https://github.com/nanobrowser/nanobrowser ⭐ Our repository has been starred by 4.7k developers in 4 weeks! πŸ”₯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 πŸ“ŠKey Features: βœ… Multi-agent System: Specialized agents collaborate to accomplish complex web tasks. βœ… Interactive Side Panel: Intuitive chat interface with real-time status updates. βœ… Task Automation: Seamlessly automate repetitive tasks across websites. βœ… Follow-up Questions: Ask contextual follow-up questions about completed tasks. βœ… Conversation History: Easily access and manage your interaction history. βœ… Multiple LLM Support: Connect your preferred LLM providers and assign different models to different agents. 🌐 Browser Support βœ… Chrome βœ… 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. πŸš€ 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 πŸ’‘ 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.
Nanobrowser: AI Web Agent & Automation screenshot 1Nanobrowser: AI Web Agent & Automation screenshot 2Nanobrowser: AI Web Agent & Automation screenshot 3Nanobrowser: AI Web Agent & Automation screenshot 4

Reviews (13 cached)

β˜…β˜†β˜†β˜†β˜†2025-12-28
Dennis Yu

Tried it twice and it errored out both times. Maybe in latter versions it will be ready for prime time.

β˜…β˜†β˜†β˜†β˜†2025-12-08
VinΓ­cius gil

openmanus seems less acephalous

β˜…β˜†β˜†β˜†β˜†2025-11-04
jadi zadi

Failed in its first task: ``` User Write a random sentence in google translate to be translated in Spanish 12:41 AM Planner Planner Navigate to Google Search and search for "Google Translate". 12:41 AM Navigator Navigator Input a random sentence into the source text area 12:42 AM Failed to input text into element: [object Object]. Error: Element: [object Object] not found 12:42 AM Ensure Spanish is selected as the target language 12:42 AM Element no longer available with index 17 - most likely the page changed 12:42 AM Input a random sentence into the source text area 12:42 AM Failed to input text into element: [object Object]. Error: Element: [object Object] not found 12:42 AM Ensure Spanish is selected as the target language 12:42 AM Element no longer available with index 17 - most likely the page changed ```

β˜…β˜†β˜†β˜†β˜†2025-07-24
ВячСслав Π›Π°ΠΉΠΊ

Doesn't work for me. Always error: System Task failed: Planner API Authentication failed. Please verify your API key. But my API key is ok.

β˜…β˜†β˜†β˜†β˜†2025-06-10
Artur Bodera

Doesn't work at all on Arc :\

β˜…β˜†β˜†β˜†β˜†2025-04-04
skyler

so confusing, not very user friendly and doesnt even work

β˜…β˜…β˜†β˜†β˜†2025-06-11
Mandy Flores

Installs fine on Opera One(version: 119.0.5497.70) but when clicking on the toolbar icon the sidebar never opens to start using the extension. :(

β˜…β˜…β˜†β˜†β˜†2025-06-09
Adrian Geantă

Not working on opera GX browser.

β˜…β˜…β˜†β˜†β˜†2025-05-13
Gaspard van Ko

Looks promising but I keep getting: Navigation failed: Cannot access a chrome-extension:// URL of different extension

β˜…β˜…β˜…β˜†β˜†2025-08-18
Farhan

not work in chromonium browser based, i used arc browser that panel for promting not shown

β˜…β˜…β˜…β˜†β˜†2025-06-22
ahmed ahmed

still need a lot of work to be perfect, i have tried that : but he has failed to do it: open gimini and write three prompts one for generate cat pic and wait until gimini genrate it,then write the second for genreate dog pic and wait until gimini genrate it,then write the third for genrate horse, and in the end try to download the three pics

β˜…β˜…β˜…β˜†β˜†2025-06-22
Mohamed Hamouda

The extension works on Chrome browser only. Use Arc browser and it does not work.

β˜…β˜…β˜…β˜†β˜†2025-06-15
Dev Basu

It works great on my desktop chrome but for some reason continues to give navigation failed cannot attach to this target on my laptop chrome which is the same version. if it would work all across then would give it a 5/5, happy to give 5/5 if this issue resolves. User User click on welcome 12:29 AM Planner Planner 1. Analyze the current webpage to locate the element with the text 'welcome'. 2. Click on the 'welcome' element. 12:29 AM Navigator Navigator Navigation failed: Cannot attach to this target. 12:29 AM Navigation failed: Cannot attach to this target. 12:29 AM Navigation failed: Cannot attach to this target. 12:29 A

Permissions (8)

Permissions

activeTabβ„Ή Can access the current tab when you click the extension debuggerβ„Ή Can use Chrome's debugging protocol on other tabs scriptingβ„Ή Can inject scripts into web pages sidePanel storageβ„Ή Can store data locally in your browser tabsβ„Ή Can see your open tabs and their URLs unlimitedStorage webNavigationβ„Ή Can monitor navigation events

Details

Version 0.1.13
Updated Nov 23, 2025
Size 983KiB
First Seen Mar 23, 2026