BrowserKing: Open-Source Chrome Extension for Browser Control via Claude and Other Models
BrowserKing is a free, open-source Chrome extension that turns Claude and other AI models into full browser agents. It operates from a side panel and requires no account or subscription—just your Anthropic API key.
Key Features
- Supports Claude and 15+ other AI models
- Takes screenshots of the current browser screen and sends them to the selected model
- Acts on the model's decisions to perform browser actions
- Each provider gets its own theme color, with the UI adapting visually when switching models
Browser Control Capabilities
- Clicking buttons
- Filling forms
- Scrolling
- Navigating tabs
The developer notes that Claude handles the vision + tool call combination particularly well compared to other providers tested. The extension is available on GitHub under the MIT license.
This type of tool is useful for automating browser-based tasks through natural language instructions, potentially reducing manual interaction with repetitive web interfaces.
📖 Read the full source: r/ClaudeAI
👀 See Also
Smriti: A Git-like system for managing LLM reasoning state to prevent conversation drift
Smriti is an open-source tool that lets developers save, restore, branch, and compare reasoning states in LLM conversations to prevent drift. It treats interactions as state rather than chat history, allowing clean rollbacks and alternative exploration without contamination.
Ory Lumen: Open Source Local Semantic Search Plugin for Claude Code
Ory Lumen is a Claude Code plugin that indexes codebases using Ollama with a code embedding model and SQLite-vec for semantic search, addressing Claude Code's performance issues with large codebases. The tool is free, local-only, and includes a SWE-style benchmark test harness for reproducible results.
Mouser: Open-source alternative to Logitech Options+ for MX Master 3S
Mouser is a lightweight, open-source tool that remaps buttons on the Logitech MX Master 3S mouse without requiring Logitech's proprietary software. It runs fully locally with no telemetry, supports per-application profiles, and includes DPI control and battery monitoring.
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