Lightpanda Browser

Active

GitHub Zig AGPL-3.0

Description

A lightweight browser runtime designed for automation and scraping scenarios, offering lower overhead than traditional browsers for headless tasks.

Key Features

Built from scratch — Not a Chromium/WebKit fork; headless browser written entirely in Zig
Ultra-low resource usage — 123MB peak memory vs Chrome's 2GB; 5s for 100 pages vs Chrome's 46s (9x faster)
CDP compatible — Chrome DevTools Protocol support; works directly with Puppeteer and Playwright
Native MCP server — Built-in MCP JSON-RPC 2.0 server for AI agent browser tool integration
URL fetch & Markdown conversion — --dump html/markdown mode to fetch pages and convert directly to Markdown
robots.txt compliance — --obey-robots flag to respect website crawling rules

Use Cases

💡 Large-scale web crawling and data collection, replacing Chrome to reduce resource consumption

💡 Provide browser tools for AI agents via MCP protocol to enable web browsing capabilities

💡 Automated testing with Puppeteer/Playwright using a lighter browser backend

💡 Extract structured data from web pages for training data preparation or information aggregation

💡 Run browser automation tasks in resource-constrained environments like edge devices

Strengths & Limitations

✅ Strengths

• Actively maintained, recent updates
• High community interest (33.9k stars)
• Established track record (3 years in production)
• Responsive to issues, low backlog

⚠️ Limitations

• Restrictive license (AGPL-3.0)

Quick Start

# macOS install
brew install lightpanda-io/browser/lightpanda

# Fetch a page and convert to Markdown
lightpanda fetch --dump markdown https://example.com

# Start CDP server
lightpanda serve --host 127.0.0.1 --port 9222

Visit GitHub

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