chrome-launcher

Chrome Launcher – Node.js Tool to Start Chrome

Node.js Chrome LauncherActiveAutomation

CPU Usage

0-6%

Memory

15-60 MB

Location

node_modules/chrome-launcher

Publisher

Google LLC

Quick Answer

chrome-launcher is a Node.js utility that finds or downloads a Chrome/Chromium binary and launches it with debugging flags for automated tests and headless workflows.

Is it Safe?

✔ NO - Safe

Official npm package maintained by Google; use from npm registry and within your project.

Warning

Launcher spawns a Chrome process

Chrome-launcher manages a separate Chrome/Chromium binary instance for automation

Can I Disable?

✔ YES

Disable by not invoking chrome-launcher in your scripts or by removing chrome-launcher from dependencies

What is chrome-launcher?

chrome-launcher is a Node.js module that automates starting a Chrome/Chromium binary for testing and automation. It locates a Chrome executable or downloads one, then launches it with debugging flags for CDP connections used by Puppeteer and Playwright.

The module abstracts binary discovery and startup, supplying the caller with the launched process, port, and options. It enables headless or headed Chrome sessions and cleans up the browser when the Node process ends.

Quick Fact: chrome-launcher helps test runners quickly bootstrap Chrome without manual binary management.

Is chrome-launcher Safe?

Yes, chrome-launcher is safe when installed from the official npm registry and used as intended with legitimate scripts and projects.

Is chrome-launcher a Virus or Malware?

The real chrome-launcher npm package is not a virus. It is a legitimate tool published by Google for automating Chrome launches.

How to Tell if chrome-launcher is Legitimate

File Location:: Check that the module resides in your project at C:\Projects\MyApp\node_modules\chrome-launcher or a local workspace. Global installs appear under C:\Users\\AppData\Roaming\npm\node_modules\chrome-launcher.
Package Source:: Verify the package.json lists "name": "chrome-launcher" and the author as Google. Confirm the version matches the npm registry.
Binary Reference:: Chrome-launcher will reference C:\Program Files\Google\Chrome\Application\chrome.exe or C:\Program Files (x86)\Google\Chrome\Application\chrome.exe when launching. Ensure these binaries exist.
Integrity Check:: Cross-check the package-lock.json or npm-shrinkwrap.json integrity hashes to ensure the package contents are authentic.

Red Flags: If chrome-launcher appears outside the project workspace, or if the package.json shows unexpected authors, or if the launcher runs without a script invoking it, treat as suspicious and audit dependencies.

Why Is chrome-launcher Running on My PC?

chrome-launcher runs to start a Chrome/Chromium browser instance as part of automated tests or scripts. It is not a persistent background service by itself.

Reasons it's running:

Active Launch Request: A Node script or test runner invoked chrome-launcher to start a Chrome instance for automation.
Background Debugging Session: Chromium is started with debugging flags for remote connection via CDP (Port 9222 by default).
CI/Automation Pipelines: Continuous integration jobs run chrome-launcher to bring up a browser for tests in headless mode.
Binary Pre-Download: Launcher may download a compatible Chrome binary ahead of time to speed up startup in repeated runs.
Environment-Driven Launch: CHROME_PATH or system PATH resolution triggers a browser launch when a script requires a browser.

Can I Disable or Remove chrome-launcher?

Yes, you can disable chrome-launcher usage. It is safe to remove the launcher from your project dependencies if you no longer need automated Chrome launches.

How to Stop chrome-launcher

Remove Invocation: Stop calling chrome-launcher in your Node scripts or test runner configuration.
Remove Dependency: Run npm uninstall chrome-launcher (local) or npm uninstall -g chrome-launcher (global).
Unset Chrome Path: Clear CHROME_PATH environment variable if set.
Update Test Setup: Replace browser startup with a different launcher or remove automated Chrome usage.
CI Configuration: Remove chrome-launcher steps from CI pipelines to stop automatic Chrome launches.

How to Uninstall chrome-launcher

✔ npm uninstall chrome-launcher --save
✔ npm uninstall -g chrome-launcher
✔ Remove any code references to chrome-launcher in your scripts and configuration

Common Problems: Chrome Launcher Issues

If chrome-launcher isn’t behaving as expected, check these typical problems and fixes specific to the launcher that starts Chrome for automation.

Common Causes & Solutions

Cannot locate Chrome binary: Set CHROME_PATH to the Chrome executable path or install Chrome so the launcher can find chrome.exe.
Chrome fails to start: Ensure the Chrome binary exists at the expected location and there are no conflicting flags. Run with explicit executablePath in your script.
Network restrictions block binary download: Allow npm to reach the Chrome binary download URL or provide a local cache. Check proxy settings and update chrome-launcher accordingly.
Launcher times out: Increase startup timeout in your script or test runner; ensure resources are available and CPU usage is not blocked.
Chrome processes remain after test: Ensure proper cleanup in your tests and call chromeLauncher.kill() or ensure process exit hooks terminate.
Dependency mismatch: Update to compatible chrome-launcher and Puppeteer/Playwright versions. Run npm install to refresh package-lock integrity.

Quick Fixes:
1. Quick Fixes:
2. 1. Run npm ci to recover exact dependencies including chrome-launcher
3. Set executablePath to a known Chrome binary in your script
4. Remove and re-add chrome-launcher to refresh metadata
5. Update to the latest chrome-launcher version
6. Review CI logs for failed chrome-launcher steps

Frequently Asked Questions

What is chrome-launcher used for in automation testing?

chrome-launcher starts a Chrome/Chromium binary from Node.js for automated tests (Puppeteer/Playwright). It handles binary location, downloading, and startup flags.

How do I install chrome-launcher?

Install with npm install chrome-launcher or add it to your package.json dependencies; then require('chrome-launcher') in your test scripts.

How do I use chrome-launcher with Puppeteer?

chrome-launcher provides a launched Chrome instance that Puppeteer can connect to via CDP; pass executablePath from chrome-launcher to Puppeteer's connect option.

Can I disable chrome-launcher from running automatically?

Yes, stop invoking it in your code or remove the dependency. Ensure CI or local scripts do not launch chrome-launcher.

What if chrome-launcher cannot find Chrome?

Specify CHROME_PATH or executablePath in your script; ensure a compatible Chrome/Chromium binary is installed on your system.

Is chrome-launcher safe to use in CI environments?

Yes, when installed from npm and configured properly; verify integrity via package-lock.json and ensure only trusted pipelines run the launcher.

Related Processes

node.exe

Node.js runtime that executes chrome-launcher as part of automation scripts

powershell.exe

Windows shell environment used to run npm scripts or launch automation workflows that depend on chrome-launcher