Choose for your workflow

Bruster vs Playwright
and Puppeteer.

A native webview controller, a cross-browser testing platform, and a browser automation library solve different problems. Here is where each fits.

Browser automation, three approaches

If you are evaluating Playwright alternatives or looking for a lightweight browser automation CLI, start with the interface and browser behavior your application needs. A small controller binary is only one part of the runtime footprint.

Scroll horizontally on smaller screens to compare all three tools.

Capabilities and trade-offs of Bruster, Playwright, and Puppeteer
Your requirement	Bruster	Playwright	Puppeteer
Main interface	JSON lines over stdio; MCP built into the executable.	Language APIs, Playwright Test, and separate CLI / MCP tooling.	JavaScript / TypeScript library; Puppeteer-based MCP tooling is available.
Browser engines	WKWebView on macOS, WebKitGTK on Linux, WebView2 on Windows.	Chromium, Firefox, and WebKit, selectable independently of the platform’s webview.	Chrome and Firefox, controlled through browser automation protocols.
Application languages	Any language that can start a process and exchange JSON lines.	JavaScript / TypeScript, Python, Java, and .NET bindings.	JavaScript / TypeScript.
Testing workflow	Bring your own assertions, runner, fixtures, and reporting.	Playwright Test includes assertions, isolation, parallelism, tracing, and reporting.	Integrate the browser library with a test runner or your own scripts.
Input and frames	Synthetic DOM events; same-origin frames and open shadow roots. Cross-origin frames are unsupported.	Browser-level input and frame automation.	Browser-level input and frame automation.
Linux without a desktop	WebKitGTK requires a display or Xvfb, including hidden mode.	Headless browser support.	Headless browser support; headless is the default.
Runtime installation	Compiled Rust controller plus the platform’s native runtime and helper processes. No Node.js required by bruster.	Language tooling and compatible browsers; requirements depend on the chosen binding.	JavaScript runtime and compatible browser. `puppeteer-core` can use a separately managed browser.

WebView2 is Chromium-based. “Native webview” describes how bruster integrates with the platform; it does not mean every platform uses a non-Chromium engine.

Choose the tool that matches the job

Consider bruster when…

You want a language-neutral, line-oriented interface for scripts and smoke tests.
Your workflow can use the platform’s native webview.
You want a built-in MCP server in a Rust executable.
You can work within synthetic-input and same-origin-frame boundaries.

Consider Playwright when…

You need a full end-to-end testing system.
Your CI needs multiple browser engines and isolated contexts.
Tracing, test generation, parallel execution, and web-first assertions are important.
Your application depends on browser-level input or cross-origin frame interaction.

Where Puppeteer fits

Puppeteer is a useful choice when your application is already JavaScript-based and you want a high-level API for Chrome or Firefox. It runs headless by default and integrates with your existing scripts or test runner. Use puppeteer-core if you manage the browser installation yourself.

What about agent-browser?

agent-browser provides a CLI designed for AI agents, compact snapshots, and a broad browser command surface. Its current documentation describes a native Rust implementation and multiple engine options. Our benchmark suite measures the exact agent-browser package and full-Chrome configuration recorded in each run; that measurement does not describe every supported engine or installation mode.

Try the workflow before choosing.

Use the Python smoke-test example or MCP setup guide against your own application. Check the behavior you need, including authentication, iframes, and input handling.

Compare performance with the context attached

“Which browser automation tool uses less memory?” depends on the engine, workload, process accounting, and environment. Bruster’s public benchmarks run five configurations: Bruster / WebKitGTK, Playwright / Headless Shell, Playwright / full Chrome, Puppeteer / full Chrome, and agent-browser / full Chrome.

Startup: ready time, first navigation, and combined launch-to-first-page time.
Repeated work: navigation, matching DOM extraction, and PNG screenshots.
Memory: the owned process tree, with Xvfb included in Bruster’s total PSS.
Runtime footprint: installed-file lower bounds, rather than controller-binary size alone.
Reliability: fault probes, recovery attempts, and cleanup failures.

Timings include controller round trips. Results show medians and observed ranges from localhost workloads on a Linux runner. They are not a guarantee for every website, operating system, or deployment. Compare configurations within one run and read the recorded versions and methodology.

Read the live benchmark results Review the methodology →

Sources and further reading

Capability descriptions were checked against the projects’ documentation on 28 October 2026. Benchmark pages include the exact versions used for each measurement.