Browser automation sandboxes
A browser pointed at the open web is one of the riskiest things an agent can drive. These posts cover running Playwright and Puppeteer in isolated VMs, browser and computer-use agents, scraping at scale, and keeping sessions from bleeding into each other.
Sandboxes for browser agents26 posts
How to Sandbox a browser-use Agent
Every page a browser agent visits can address it directly. That is not an edge case in the threat model — it is the product. Here's how to run one session per microVM.
The best web scraping and crawling platforms in 2026
Scraping platform names four different products that people compare as if they were one. Sort the field into layers and most of the comparison questions answer themselves.
The Best Open-Source Browser-Agent Frameworks in 2026
Five ways to let a model drive Chrome — and the unfashionable truth that plain Playwright behind typed tools beats all of them more often than the category admits.
What Is a Headless Browser? How It Works and What It Costs to Run
It is not a different browser — it is the same engine with the window removed. The surprise is never the definition; it is that the process you thought was free costs hundreds of megabytes, needs kernel features your container blocks, and leaks until the box dies.
The 7 Best Hyperbrowser Alternatives in 2026
Every vendor in this category hands you a CDP WebSocket. The connect call is identical. What differs is who owns the isolation boundary, whether a logged-in session survives, and whether you needed a proxy pool at all.
The best Browserless alternatives in 2026
Browserless solved the boring part of headless Chrome and self-hosts cleanly. People look for alternatives for three specific reasons, and which one applies to you settles the choice quickly.
The best BrowserStack alternatives in 2026
BrowserStack's bill scales with parallel sessions, and most teams are paying for real-device breadth while using it as a Chrome grid. Here is how to tell which one you need.
How to run Puppeteer in a sandbox
Puppeteer in production fails in a small number of very repeatable ways — a missing shared library, a shared memory limit, and a browser process nobody killed. An isolated VM per session removes most of them.
The best Selenium Grid alternatives in 2026
Nobody replaces Selenium Grid because of the protocol. They replace it because a long-lived browser node accumulates state, and a flaky test is indistinguishable from a poisoned node.
More posts in this topic
- How to run Playwright tests in a sandbox
- The best platforms for running Playwright tests in 2026
- The Best Browserbase Alternatives in 2026
- Sharding a Playwright suite that has outgrown one machine
- Keeping a browser logged in without storing passwords
- Debugging a browser failure you can't reproduce
- How many browsers can one machine actually run?
- Why your visual regression tests are flaky
- AI Agents That Fill Web Forms (RPA) in a MicroVM
- Run Browser E2E Tests in Isolated MicroVMs
- Isolating AI Shopping Agents in MicroVMs
- Run AI Browser Agents in Isolated MicroVMs
- Building an ephemeral web-scraper fleet on microVMs
- Building a Headless Browser Automation Farm on MicroVMs
- A Sandbox for AI Agent Computer Use
- Sandboxed Web Scraping for AI Agents
- Browser Isolation in MicroVMs: Headless & Remote