lightpanda-browser

仓库: aradotso/trending-skills
安装量: 105
排名: #8045

安装

npx skills add https://github.com/aradotso/trending-skills --skill lightpanda-browser

Lightpanda — Headless Browser for AI & Automation Skill by ara.so — Daily 2026 Skills collection Lightpanda is a headless browser built from scratch in Zig, designed for AI agents, web scraping, and automation. It uses 9x less memory and runs 11x faster than Chrome headless. Key facts: Not based on Chromium, Blink, or WebKit — clean-slate Zig implementation JavaScript execution via V8 engine CDP (Chrome DevTools Protocol) compatible — works with Playwright, Puppeteer, chromedp Respects robots.txt via --obey_robots flag Beta status, actively developed License: AGPL-3.0 Installation macOS (Apple Silicon) curl -L -o lightpanda https://github.com/lightpanda-io/browser/releases/download/nightly/lightpanda-aarch64-macos chmod a+x ./lightpanda Linux (x86_64) curl -L -o lightpanda https://github.com/lightpanda-io/browser/releases/download/nightly/lightpanda-x86_64-linux chmod a+x ./lightpanda Docker

Supports amd64 and arm64

docker run -d --name lightpanda -p 9222 :9222 lightpanda/browser:nightly CLI Usage Fetch a URL (dump rendered HTML) ./lightpanda fetch --obey_robots --log_format pretty --log_level info https://example.com Start CDP Server ./lightpanda serve --obey_robots --log_format pretty --log_level info --host 127.0 .0.1 --port 9222 This launches a WebSocket-based CDP server for programmatic control. CLI Flags Flag Description --obey_robots Respect robots.txt rules --log_format pretty Human-readable log output --log_level info Log verbosity: debug , info , warn , error --host 127.0.0.1 Bind address for CDP server --port 9222 Port for CDP server --insecure_disable_tls_host_verification Disable TLS verification (testing only) Playwright Integration Start the CDP server, then connect Playwright to it: import { chromium } from 'playwright-core' ; const browser = await chromium . connectOverCDP ( 'http://127.0.0.1:9222' ) ; const context = await browser . contexts ( ) [ 0 ] || await browser . newContext ( ) ; const page = await context . newPage ( ) ; await page . goto ( 'https://example.com' , { waitUntil : 'networkidle' } ) ; const title = await page . title ( ) ; const content = await page . content ( ) ; console . log ( Title: ${ title } ) ; console . log ( HTML length: ${ content . length } ) ; await browser . close ( ) ; Puppeteer Integration import puppeteer from 'puppeteer-core' ; const browser = await puppeteer . connect ( { browserWSEndpoint : 'ws://127.0.0.1:9222' , } ) ; const context = await browser . createBrowserContext ( ) ; const page = await context . newPage ( ) ; await page . goto ( 'https://example.com' , { waitUntil : 'networkidle0' } ) ; const title = await page . title ( ) ; const text = await page . evaluate ( ( ) => document . body . innerText ) ; console . log ( Title: ${ title } ) ; console . log ( Body text: ${ text . substring ( 0 , 200 ) } ) ; await page . close ( ) ; await browser . close ( ) ; Go (chromedp) Integration package main import ( "context" "fmt" "log" "github.com/chromedp/chromedp" ) func main ( ) { allocCtx , cancel := chromedp . NewRemoteAllocator ( context . Background ( ) , "ws://127.0.0.1:9222" ) defer cancel ( ) ctx , cancel := chromedp . NewContext ( allocCtx ) defer cancel ( ) var title string err := chromedp . Run ( ctx , chromedp . Navigate ( "https://example.com" ) , chromedp . Title ( & title ) , ) if err != nil { log . Fatal ( err ) } fmt . Println ( "Title:" , title ) } Python Integration import asyncio from playwright . async_api import async_playwright async def main ( ) : async with async_playwright ( ) as p : browser = await p . chromium . connect_over_cdp ( "http://127.0.0.1:9222" ) context = browser . contexts [ 0 ] if browser . contexts else await browser . new_context ( ) page = await context . new_page ( ) await page . goto ( "https://example.com" , wait_until = "networkidle" ) title = await page . title ( ) content = await page . content ( ) print ( f"Title: { title } " ) print ( f"HTML length: { len ( content ) } " ) await browser . close ( ) asyncio . run ( main ( ) ) Web Scraping Patterns Batch Page Fetching import { chromium } from 'playwright-core' ; const browser = await chromium . connectOverCDP ( 'http://127.0.0.1:9222' ) ; const context = await browser . newContext ( ) ; const urls = [ 'https://example.com/page1' , 'https://example.com/page2' , 'https://example.com/page3' , ] ; for ( const url of urls ) { const page = await context . newPage ( ) ; await page . goto ( url , { waitUntil : 'networkidle' } ) ; const data = await page . evaluate ( ( ) => ( { title : document . title , text : document . body . innerText , links : [ ... document . querySelectorAll ( 'a[href]' ) ] . map ( a => a . href ) , } ) ) ; console . log ( JSON . stringify ( data , null , 2 ) ) ; await page . close ( ) ; } await browser . close ( ) ; Extract Structured Data const data = await page . evaluate ( ( ) => { const items = document . querySelectorAll ( '.product-card' ) ; return [ ... items ] . map ( item => ( { name : item . querySelector ( 'h2' ) ?. textContent ?. trim ( ) , price : item . querySelector ( '.price' ) ?. textContent ?. trim ( ) , link : item . querySelector ( 'a' ) ?. href , } ) ) ; } ) ; Docker Compose (with your app) services : lightpanda : image : lightpanda/browser : nightly ports : - "9222:9222" restart : unless - stopped scraper : build : . depends_on : - lightpanda environment : - BROWSER_WS_ENDPOINT=ws : //lightpanda : 9222 Supported Web APIs Lightpanda supports (partial, expanding): DOM tree manipulation and querying JavaScript execution (V8) XMLHttpRequest (XHR) Fetch API Cookie management Network interception Proxy support Configuration Environment Variable Description LIGHTPANDA_DISABLE_TELEMETRY Set to true to opt out of usage metrics Performance Comparison Metric Lightpanda Chrome Headless Memory ~9x less Baseline Speed ~11x faster Baseline Binary size Small (Zig) Large (Chromium) Rendering No visual rendering Full rendering engine When to Use Lightpanda Use Lightpanda when: Running AI agents that need to browse the web Batch scraping at scale (memory/CPU savings matter) Automating form submissions and data extraction Running in containers where resources are limited You need CDP compatibility but not full visual rendering Use Chrome/Playwright instead when: You need pixel-perfect screenshots or PDF generation You need full Web API coverage (Lightpanda is still partial) Visual regression testing Testing browser-specific rendering behavior Building from Source Requires: Zig 0.15.2, Rust, CMake, system dependencies.

Ubuntu/Debian dependencies

sudo apt install xz-utils ca-certificates pkg-config libglib2.0-dev clang make curl

Build

git clone https://github.com/lightpanda-io/browser.git cd browser zig build

Optional: pre-build V8 snapshot for faster startup

zig build snapshot_creator -- src/snapshot.bin zig build -Dsnapshot_path = .. / .. /snapshot.bin Troubleshooting Connection refused on port 9222: Ensure ./lightpanda serve is running Check --host 0.0.0.0 if connecting from Docker/remote Playwright script breaks after update: Lightpanda is beta — Playwright's capability detection may behave differently across versions Pin your Lightpanda version or use nightly consistently Missing Web API support: Check the zig-js-runtime repo for current API coverage File issues at lightpanda-io/browser Links GitHub: https://github.com/lightpanda-io/browser Runtime APIs: https://github.com/lightpanda-io/zig-js-runtime

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