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Expert skill for Lightpanda — the headless browser built in Zig for AI agents and automation. 9x less memory, 11x faster than Chrome. Installation, CLI, CDP server, Playwright/Puppeteer integration, and web scraping.
npx skill4agent add adisinghstudent/ara.so lightpanda-browserSkill by ara.so — Daily 2026 Skills collection
robots.txt--obey_robotscurl -L -o lightpanda https://github.com/lightpanda-io/browser/releases/download/nightly/lightpanda-aarch64-macos
chmod a+x ./lightpandacurl -L -o lightpanda https://github.com/lightpanda-io/browser/releases/download/nightly/lightpanda-x86_64-linux
chmod a+x ./lightpanda# Supports amd64 and arm64
docker run -d --name lightpanda -p 9222:9222 lightpanda/browser:nightly./lightpanda fetch --obey_robots --log_format pretty --log_level info https://example.com./lightpanda serve --obey_robots --log_format pretty --log_level info --host 127.0.0.1 --port 9222| Flag | Description |
|---|---|
| Respect robots.txt rules |
| Human-readable log output |
| Log verbosity: |
| Bind address for CDP server |
| Port for CDP server |
| Disable TLS verification (testing only) |
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();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();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)
}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())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();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,
}));
});services:
lightpanda:
image: lightpanda/browser:nightly
ports:
- "9222:9222"
restart: unless-stopped
scraper:
build: .
depends_on:
- lightpanda
environment:
- BROWSER_WS_ENDPOINT=ws://lightpanda:9222| Environment Variable | Description |
|---|---|
| Set to |
| 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 |
# 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./lightpanda serve--host 0.0.0.0