Selenium
Depends
Confidence: Medium
Buy if you have engineers to write and maintain browser test suites at scale . it's the free industry standard.
Comparison
Selenium vs Puppeteer
Selenium and Puppeteer both land on Depends.
Puppeteer
Depends
Confidence: Medium
Buy it (it's free) only if you have JavaScript developers automating Chrome . scraping, screenshots, PDFs, tests.
| Compare | Selenium | Puppeteer |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | QA teams with coding skills | JavaScript dev teams |
| Who it's not for | Teams without engineers . tests are code and break constantly | Non-technical buyers wanting no-code scraping |
| Privacy | Multiple public CVEs, mostly Selenium Grid; a critical flaw in an old Docker hub image and in-the-wild cryptomining abuse of exposed Grids.⁸ | Google-maintained open-source library; Snyk tracks known npm vulnerabilities.15 |
| Support quality | Community and sponsorship only; no vendor support | Community and GitHub issues only; no SLA |
| Public sentiment | Users value its free flexibility but consistently flag coding demands, brittle tests, and heavy maintenance.³ | Developer chatter treats Puppeteer as a staple for Chrome automation, with gripes centered on Chrome-only limits and self-hosting overhead. |
| Biggest gotcha | Free tool, expensive operation: you pay for Grid hosting, CI infrastructure, and engineers' time.⁵ | Publicly exposed Puppeteer-rendering services are a known attack target |
Pick Selenium when
- QA teams with coding skills
- Cross-browser regression suites
- Distributed testing via Grid
- Automating repetitive web admin tasks
When Selenium is not a fit
- Teams without engineers . tests are code and break constantly
- Small startups wanting quick automation; use Playwright or Cypress
- Buyers needing vendor support or SLAs; there is no company to call
- Anyone unwilling to self-host and secure a Grid
Pick Puppeteer when
- JavaScript dev teams
- Screenshot and PDF generation pipelines
- Web scraping workflows
- Chrome-only test automation
When Puppeteer is not a fit
- Non-technical buyers wanting no-code scraping
- Firefox/Safari-first QA teams
- Anyone needing vendor support or SLAs
- One-off scrapes . overkill; use a hosted scraper
Sources
- Selenium official siteselenium.devofficial
official
review
review
news
- Playwright vs Selenium 2026: The $216K Maintenance Taxgetautonoma.comnews
security
- CVE-2022-28109 . Selenium Grid 4.0.0 (NVD)nvd.nist.govsecurity
security
news
- Companies that use Selenium (84,379) . TheirStacktheirstack.comnews
- Puppeteer official sitepptr.devofficial
- Puppeteer API referencepptr.devofficial
- Puppeteer - Chrome for Developersdeveloper.chrome.comofficial
- puppeteer - Snyk Security Databasesecurity.snyk.iosecurity
security