AI Developer Tools

peek-cli

Let coding agents see your browser by capturing screenshots of open tabs via a CLI and browser extension.

What is peek-cli?

peek-cli is an open-source tool that enables AI coding agents to capture screenshots of any open browser tab. It uses a WebSocket server and a browser extension to stream screenshots securely, integrating with agents like Claude Code, Codex, and GitHub Copilot.

peek-cli vs Similar AI Tools

Pricing ModelFreeFreeCustom PricingFree, Paid
Free Credits
Key Features
  • Screenshot capture of any open browser tab
  • WebSocket-based streaming for real-time agent access
  • CLI commands for tab listing and screenshot capture
  • GitHub Pages hosting
  • Jekyll integration
  • Markdown content support
  • Workload monitoring and anomaly detection
  • Slow query identification and optimization
  • Natural language querying to SQL translation
  • Scans skills and MCP servers against ATR rules before loading
  • Real-time runtime protection against prompt injection and hijacks
  • Signed audit-ready evidence for compliance (EU AI Act, NYDFS, DORA)
Pros
  • Open source with MIT license
  • Easy setup with npm and Chrome extension
  • Free hosting with custom domain support
  • Easy setup via Git
  • Quick one-line installation and setup in 15 minutes
  • Self-hosted ensures data stays within your infrastructure
  • Open source with MIT license
  • Real-time detection and prevention
Cons
  • Requires browser extension and CLI installation
  • Must reconnect agent on every startup
  • Limited to static content
  • No server-side processing
  • Requires self-hosting and VPC setup
  • No free tier or trial mentioned
  • Enterprise features require paid tiers
  • Setup may require technical expertise
Best For
  • AI agent developers
  • Software engineers using AI coding assistants
  • Developers
  • Open source projects
  • Database administrators
  • Data engineers
  • Developers building and deploying AI agents
  • Enterprises needing audit-ready AI security

How to use peek-cli?

  1. 1Install the CLI globally: npm i -g peeked
  2. 2Start the WebSocket daemon: peeked start
  3. 3Install the Chrome extension from the Chrome Web Store
  4. 4Connect your browser to the daemon
  5. 5List available tabs: peeked list
  6. 6Capture a screenshot: peeked at <url>

peek-cli Key Features

  • Screenshot capture of any open browser tab
  • WebSocket-based streaming for real-time agent access
  • CLI commands for tab listing and screenshot capture
  • Browser extension for secure connection
  • Plugin integration with Claude Code, Codex, and Copilot
  • Open source under MIT license

peek-cli Use Cases

  • Allow AI coding agents to view web applications during development
  • Enable agents to debug browser-based UI issues
  • Provide agents with visual context from browser tabs
  • Automate screenshot capture for documentation or testing

peek-cli Pricing & Free Credits

peek-cli currently operates on a Free model.

This tool is completely free to use

Free

$0

Open source MIT license, fully free to use

peek-cli Pros & Cons

Pros

  • Open source with MIT license
  • Easy setup with npm and Chrome extension
  • Works with multiple AI coding agents
  • Secure: only screenshots, no script injection
  • Simple and focused functionality

Cons

  • Requires browser extension and CLI installation
  • Must reconnect agent on every startup
  • Limited to screenshot capture only
  • Currently supports only Chrome browser

What is peek-cli best for?

  • AI agent developers
  • Software engineers using AI coding assistants
  • Teams integrating visual feedback into agent workflows
  • Open source enthusiasts

peek-cli FAQ

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