---
title: "Discussion on \"Headless browsers in 2026: Playwright vs Puppeteer vs Selenium, and where they should run\" | Hashnode"
description: "Discussion on \"Headless browsers in 2026: Playwright vs Puppeteer vs Selenium, and where they should run\". Headless browsers in 2026. Playwright vs Puppeteer vs Selenium, when local Chromium stops scaling, how cloud browsers fit, and what MCP changes."
url: "https://hashnode.com/posts/playwright-vs-puppeteer-vs-selenium-2026/69ea046816b084c06816f881"
---

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Discussion

# [Headless browsers in 2026: Playwright vs Puppeteer vs Selenium, and where they should run](https://hashnode.com/blog/playwright-vs-puppeteer-vs-selenium-2026?utm_source=hashnode&utm_medium=feed)

Headless browsers in 2026. Playwright vs Puppeteer vs Selenium, when local Chromium stops scaling, how cloud browsers fit, and what MCP changes.

Apr 23 · 9 min read · hashnode.com  
Updated Jul 28  
Read the article

-   [#playwright](https://hashnode.com/tag/playwright)
-   [#puppeteer](https://hashnode.com/tag/puppeteer)
-   [#selenium](https://hashnode.com/tag/selenium)
-   [#browser-automation](https://hashnode.com/tag/browser-automation)
-   [#cloud-browser](https://hashnode.com/tag/cloud-browser)
-   [#web-scraping](https://hashnode.com/tag/web-scraping)
-   [#ai-agents](https://hashnode.com/tag/ai-agents)
-   [#quality](https://hashnode.com/tag/quality)

## Written by

[Syed Fazle Rahman](https://hashnode.com/@fazlerocks)

@fazlerocks · San Francisco, USA

  
[View profile](https://hashnode.com/@fazlerocks)

Co-founder, Hashnode and currently building Buildful and Bug0.

Co-founder and CEO at Hashnode

## Responses 2

Markdown supported · ⌘↵ to post

[Priya Sharma](https://hashnode.com/@priya_codes)

[Apr 23](https://hashnode.com/posts/playwright-vs-puppeteer-vs-selenium-2026/69ea046816b084c06816f881/comment/69ea07be2e2c2c3d5a68da97)

Good one. the stagehand lock-in point is underrated. teams pick it because the AI layer looks magical in a demo, then six months later they're stuck because half their agent logic is written against a proprietary API. plain CDP ages better.

[Jake Morrison](https://hashnode.com/@jakebuilds)

[Apr 23](https://hashnode.com/posts/playwright-vs-puppeteer-vs-selenium-2026/69ea046816b084c06816f881/comment/69ea074f2e2c2c3d5a65feea)

the local chromium ceiling section is exactly what we hit last year. started with 3-4 parallel workers on a self-hosted runner, everything fine. scaled to 15 and tests started timing out randomly. spent two weeks debugging "flaky selectors" before realizing the runner was just OOMing silently.

the one-line swap from launch to connectOverCDP is the part i wish someone had told me earlier. in my head "moving to cloud browsers" sounded like a weekend migration project. ended up being a 30 minute change.

one question though - for long-running agent loops, how are folks handling session cleanup when the agent crashes mid-run? curious if providers auto-terminate or if you eat the idle time until timeout.