webbrain: Open-source AI browser agent for Chrome and Firefox (monorepo)

by webbrain-one · Agent Tool · ★ 1.7k

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

Featured in: browser-use, Playwright MCP & AI Browser Agents

How to install webbrain

git clone https://github.com/webbrain-one/webbrain.git

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 68/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

ai-agentai-agentsai-toolsbrowser-aibrowser-automationbrowser-extensionchrome-aichrome-devtoolschrome-extensionchrome-extensions

Quick Facts

Stars1,674
Forks210
LanguageJavaScript
CategoryAgent Tool
Quality Score68/100
Open Issues6
Last Updated2026-11-07
Created2026-04-06
Platformsbrowser, node
Est. Tokens~18k

About webbrain

WebBrain Open-source AI browser agent for Chrome and Firefox. Chat with any web page, automate browser tasks, and run multi-step agent workflows — powered by your choice of LLM. Features Page Reading — Extracts text, links, forms, tables, and interactive elements from any page Browser Actions — Click, type, scroll, navigate, and interact with page elements Ask / Act Modes — Read-only mode by...

Compatible Skills

These tools work well together with webbrain for enhanced workflows:

  • codex-overleaf-link — semantic(0.30)+complementary+rare_topics+same_lang+similar_pop+shared_platform (65%)
  • real-browser-mcp — semantic(0.38)+complementary+same_lang+similar_pop+shared_platform (63%)

webbrain alternative? Top 6 similar tools

Looking for a webbrain alternative? If you're comparing webbrain with other agent tool tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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