Cheerio vs Puppeteer: HTML parser or real browser?
Compare parsing received HTML with executing client-rendered content, using a complete inline example and a practical extraction checklist.
Puppeteer.Guide
Practical tutorials for browser automation with Puppeteer, from installation and reliable waits to scraping, screenshots, forms, and PDF generation.
Diagnose and fix Puppeteer errors
Find where a Puppeteer script failed, use the error reference, and fix the cause without hiding failures or repeating actions accidentally.
Download and upload files with Puppeteer: paths and completion
Select files through real inputs and configure browser downloads with an owned directory, exact-byte completion checks and finite deadlines.
Submit forms with Puppeteer and verify the actual result
Fill real controls, distinguish native navigation from AJAX submission, start waits before actions, and avoid duplicate side effects after uncertain outcomes.
Install Puppeteer and fix browser executable/cache problems
Choose puppeteer or puppeteer-core, manage the matching browser, handle blocked install scripts, and diagnose runtime-user, architecture and path failures safely.
Generate PDFs from HTML with Puppeteer
Create a two-page PDF from inline HTML, with print CSS, page breaks, margins, page numbers and practical font/header/footer troubleshooting.