PinchTab — High-Performance Browser Automation Bridge and Orchestrator

Introduction

PinchTab is a high-performance browser automation bridge written in Go that manages multiple Chrome DevTools Protocol (CDP) connections through a single orchestration layer. It provides a real-time dashboard for monitoring browser sessions and is designed for scenarios requiring parallel browser automation at scale.

What PinchTab Does

• Orchestrates multiple headless Chrome instances through a unified CDP bridge
• Provides a real-time web dashboard for monitoring active browser sessions
• Manages browser lifecycle including creation, pooling, and cleanup
• Supports parallel execution of automation tasks across browser instances
• Exposes a REST API and WebSocket interface for programmatic control

Architecture Overview

PinchTab runs as a Go service that sits between automation clients and Chrome instances. It manages a pool of browser processes, routes CDP commands to the appropriate instance, and collects metrics displayed on a built-in dashboard. The Go runtime provides low-latency message passing and efficient concurrent session management.

Self-Hosting & Configuration

• Deploy via Docker with a single command
• Configure browser pool size and resource limits through environment variables
• Set up session timeouts and automatic cleanup policies
• Enable the dashboard on a configurable port for monitoring
• Integrate with existing automation scripts via standard CDP protocol

Key Features

• Multi-instance browser orchestration through a single endpoint
• Real-time monitoring dashboard with session metrics
• Go-based architecture for high throughput and low latency
• Standard CDP protocol compatibility with existing automation tools
• Automatic browser lifecycle management and resource cleanup

Comparison with Similar Tools

• Browserless — managed browser API; PinchTab is self-hosted with multi-instance orchestration
• Playwright — browser automation framework; PinchTab is an infrastructure layer that manages browser pools
• Selenium Grid — distributed browser testing; PinchTab focuses on CDP-native orchestration with lower overhead
• Steel Browser — browser sandbox for AI agents; PinchTab emphasizes multi-instance management and monitoring

FAQ

Q: Does it work with Puppeteer and Playwright? A: Yes, any tool that connects via CDP can use PinchTab as its browser endpoint.

Q: How many browser instances can it manage? A: The limit depends on available system resources. It handles dozens of concurrent instances on a typical server.

Q: Is there authentication for the dashboard? A: Authentication can be configured through environment variables for production deployments.

Q: What Chrome versions are supported? A: It works with any Chromium-based browser that supports the Chrome DevTools Protocol.

Sources

• https://github.com/pinchtab/pinchtab