WebBrain

Open-source AI browser agent — chat with pages, automate tasks, multi-provider LLM support.

As of June 2026, WebBrain has 141 users and a 3.00/5 rating from 2 reviews in the Productivity category.

Usersno change0%
141
141
Ratingno change0%
3.00
2 reviews
Reviewsno change0%
2
Version
12.0.4
Manifest V3
90-day change · In the last 90 days this extension 5 version updates, changed permissions.

History

10 snapshots

Tracking since Apr 16, 2026.

151.7274-3.719999999999999Apr 16, 2026Jun 13, 2026
View as table
DateUsersRatingReviewsVersion
Apr 16, 20261.6.7
Apr 22, 20261.6.7
Apr 29, 202674.0.0
May 6, 2026164.0.0
May 11, 2026495.0.1
May 17, 2026796.0.0
May 23, 2026856.0.0
May 30, 20261151.0016.0.0
Jun 5, 20261281.0016.0.0
Jun 13, 20261213.0028.5.0
Now1413.00212.0.4

Changelog

  • Jun 5, 2026
    description
    WebBrain is a free, open-source browser extension that brings AI agent capabilities to Chrome and Firefox. Read pages, extract data, and automate web tasks — powered by your choice of LLM. The self-hostable alternative to proprietary browser AI plugins.
    
    Key Features:
    - Page Understanding: Reads and comprehends any web page — articles, docs, dashboards, forms
    - Full Browser Agent: Click, type, scroll, navigate, and interact with pages on your behalf
    - Data Extraction: Extract structured data from any page — tables, lists, links, forms
    - Multi-Provider LLM: Works with local llama.cpp, OpenAI, Anthropic Claude, and OpenRouter
    - Privacy First: Your data stays yours. Run with a local LLM for zero data leakage
    - Smart Context: Automatic context management prevents token overflow
    
    LLM Providers Supported:
    - llama.cpp (Local)
    - OpenAI
    - Anthropic Claude
    - OpenRouter
    
    Interaction Modes:
    - Ask Mode: Read-only questions about current page
    - Act Mode: Full agent with browser control for automation
    
    License: MIT License
    Developer: Emre Sokullu
    GitHub: https://github.com/esokullu/webbrain
    
    Categories: Productivity, Developer Tools, AI/Machine Learning
    WebBrain is a free, open-source browser extension that brings AI agent capabilities to Chrome. Read pages, extract data, and automate web tasks — powered by your choice of LLM. The self-hostable alternative to proprietary browser AI plugins.
    
    Key Features:
    - Page Understanding: Reads and comprehends any web page — articles, docs, dashboards, forms
    - Full Browser Agent: Click, type, scroll, navigate, and interact with pages on your behalf
    - Data Extraction: Extract structured data from any page — tables, lists, links, forms
    - Multi-Provider LLM: Works with local LLMs (LM Studio, Ollama, llama.cpp) and leading cloud providers (OpenAI, Anthropic Claude, Gemini, OpenRouter, etc.).
    - Privacy First: Your data stays yours. Run with a local LLM for zero data leakage
    - Smart Context: Automatic context management prevents token overflow
    
    Interaction Modes:
    - Ask Mode: Read-only questions about current page
    - Act Mode: Full agent with browser control for automation
    
    License: MIT License
    Developer: Emre Sokullu
    GitHub: https://github.com/esokullu/webbrain
    
    Categories: Productivity, Developer Tools, AI/Machine Learning
    
    What's new in version 8.5.0
    
    * Onboarding Flow: New guided setup to help you configure API keys quickly.
    * Enhanced Capabilities: Improved social media downloads and PDF reading.
    * Expanded Support: New AI providers added for broader model compatibility.
  • Jun 5, 2026
    permissions
    sidePanel, activeTab, tabs, tabGroups, scripting, storage, webNavigation, debugger, downloads, unlimitedStorage, offscreen, privateNetworkAccess
    sidePanel, activeTab, tabs, tabGroups, scripting, storage, webNavigation, debugger, downloads, unlimitedStorage, offscreen, privateNetworkAccess, tabCapture, clipboardWrite, clipboardRead
  • May 11, 2026
    permissions
    sidePanel, activeTab, scripting, storage, webNavigation, debugger, downloads, unlimitedStorage, offscreen, privateNetworkAccess
    sidePanel, activeTab, tabs, tabGroups, scripting, storage, webNavigation, debugger, downloads, unlimitedStorage, offscreen, privateNetworkAccess
  • Apr 22, 2026
    host_permissions
    <all_urls>
    <all_urls>, http://localhost/*, http://127.0.0.1/*, http://*/*
  • Apr 22, 2026
    permissions
    sidePanel, activeTab, scripting, storage, webNavigation, debugger, downloads
    sidePanel, activeTab, scripting, storage, webNavigation, debugger, downloads, unlimitedStorage, offscreen, privateNetworkAccess

Permissions & access

Permissions
sidePanelactiveTabtabstabGroupsscriptingstoragewebNavigationdebuggerdownloadsunlimitedStorageoffscreenprivateNetworkAccesstabCaptureclipboardWriteclipboardRead
Host access
<all_urls>, http://localhost/*, http://127.0.0.1/*, http://*/*

Screenshots

WebBrain screenshot 1WebBrain screenshot 2WebBrain screenshot 3WebBrain screenshot 4WebBrain screenshot 5WebBrain screenshot 6

About

WebBrain is a free, open-source browser extension that brings AI agent capabilities to Chrome. Read pages, extract data, and automate web tasks — powered by your choice of LLM. The self-hostable alternative to proprietary browser AI plugins.

Key Features:
- Page Understanding: Reads and comprehends any web page — articles, docs, dashboards, forms
- Full Browser Agent: Click, type, scroll, navigate, and interact with pages on your behalf
- Data Extraction: Extract structured data from any page — tables, lists, links, forms
- Multi-Provider LLM: Works with local LLMs (LM Studio, Ollama, llama.cpp) and leading cloud providers (OpenAI, Anthropic Claude, Gemini, OpenRouter, etc.).
- Privacy First: Your data stays yours. Run with a local LLM for zero data leakage
- Smart Context: Automatic context management prevents token overflow

Interaction Modes:
- Ask Mode: Read-only questions about current page
- Act Mode: Full agent with browser control for automation

License: MIT License
Developer: Emre Sokullu
GitHub: https://github.com/esokullu/webbrain

Categories: Productivity, Developer Tools, AI/Machine Learning

What's new in version 8.5.0

* Onboarding Flow: New guided setup to help you configure API keys quickly.
* Enhanced Capabilities: Improved social media downloads and PDF reading.
* Expanded Support: New AI providers added for broader model compatibility.

Technical

Version
12.0.4
Manifest
V3
Size
1.72MiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
ljhijonmfahplgbbacgcfnaihbjljhhb
Developer ID
ue2197e01350ebf0de43cb5c6d19fb92e
Developer Email
[email protected]
Created
Apr 14, 2026
Last Updated (Store)
Jun 10, 2026
Last Scraped
Jun 13, 2026
Website
webbrain.one
Support URL

Data sourced from the Chrome Web Store · last verified Jun 13, 2026.