Prerender CLI Conxulta

CLI for prerendering JavaScript-based webpages into static, offline-ready snapshots.

A command-line tool for prerendering JavaScript-based web pages into fully offline snapshots. Useful for SEO, archiving, audits, and providing lightweight static fallbacks.

Features

• Render single URLs or sitemap-based multi-page scans
• Generate the following formats:
  • html: rendered version of the page
  • html-embedded: full HTML with all images, CSS, and icons inlined (offline-ready)
  • screenshot: full-page PNG rendered with scroll and optional width
  • pdf: export as print-friendly PDF
  • text: extract readable body content only
• Auto scroll to activate lazy-loaded or scroll-triggered elements
• Set custom viewport width using --width (default: 1024px)
• Output file names suffixed by width (e.g. _1024px.png)
• Supports cookie injection via CLI or config (useful for GDPR banners)
• Metadata and timing saved as dati.json and tempi.csv
• HTML snapshots include timestamp comment at top
• Help examples available via -h config
• Version display via -v or --version

Example config.default.json

{
  "url": "https://www.example.com/sitemap.xml",
  "formats": ["html-embedded", "screenshot", "pdf"],
  "output": "./output",
  "width": 1024,
  "csv": true,
  "cookies": {
    "gdpr": "true"
  }
}

CLI Usage

# Using a config file
prerender -c config.default.json --debug

# Manual configuration from CLI
prerender -u https://example.com -f html,screenshot -w 1440 --cookies '{"gdpr":"true"}'

Help

prerender -h
prerender -h config
prerender -v

© Francesco Saverio Giudice – Conxulta CLI Tools