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1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesPuppeteer can configure whether a browser context allows page-triggered downloads and where allowed files are saved, but its Files guide says Puppeteer does not provide a programmatic API to handle downloaded files. Set the context’s download behavior, trigger the download in the page, then use your runtime’s filesystem tools to check the resulting file if your browser setup supports that workflow.
What Puppeteer does—and does not—provide for downloads
The Puppeteer Files guide states: “Currently, Puppeteer does not offer a way to handle file downloads in a programmatic way.” That means there is no documented Puppeteer method here that returns a downloaded file or manages it as a file object. Puppeteer documents file uploads separately: an automation script can locate a file input and call ElementHandle.uploadFile. Upload support is not download support. Puppeteer: Files
The download-related API configures browser-context behavior. It does not, by itself, provide a download-completion callback or a way to read the file’s contents. After configuring the browser, the page still has to initiate a download, and any verification or file processing is an implementation pattern using filesystem facilities available in your runtime and browser setup.
Configure the browser context’s download behavior
Puppeteer’s API reference defines a downloadBehavior option for browser-context options. Its behavior object has a policy and an optional downloadPath. A writable destination path is required when the policy is allow or allowAndName. With allowAndName, the browser names downloads according to their download GUIDs rather than their original filenames. DownloadBehavior API · BrowserContextOptions API
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Choose a policy
| Policy | Effect | Path requirement |
|---|---|---|
deny |
Disallow downloads. | None stated. |
allow |
Allow downloads, using the browser’s normal naming behavior. | Set downloadPath. |
allowAndName |
Allow downloads and name files using their download GUIDs. | Set downloadPath. |
default |
Use the browser’s default download behavior. | None stated. |
The policy values are documented in Puppeteer’s DownloadPolicy API. If you leave downloadBehavior unset, the browser’s default behavior applies. BrowserContextOptions API
Example with browser-context options
This example shows the documented BrowserContextOptions shape. It illustrates configuration only: it does not wait for completion or return the downloaded file. The current API references surfaced for this guide identify Puppeteer 25.12.0; check the documentation for your installed version and browser/protocol before using it.
import puppeteer from 'puppeteer';
const browser = await puppeteer.launch();
const context = await browser.createBrowserContext({
downloadBehavior: {
policy: 'allow',
downloadPath: '/tmp/puppeteer-downloads',
},
});
const page = await context.newPage();
await page.goto('https://example.com/report', { waitUntil: 'domcontentloaded' });
// Replace this with the action that starts a download on your page.
await page.click('a[href="/report.csv"]');
// Puppeteer does not provide a documented download-completion API here.
// Use filesystem facilities appropriate to your runtime and browser setup
// if you need to inspect the resulting file.
await browser.close();Create the destination directory first and ensure the process running the browser can write to it. The code deliberately does not claim that clicking the link means the file has finished downloading.
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Configuration when connecting to a browser
ConnectOptions also documents a downloadBehavior option that sets behavior for the context. That is a separate configuration route for a connected-browser setup; follow the API reference for the version and connection mode you use rather than assuming identical behavior across browsers or protocols. ConnectOptions API
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Puppeteer’s Files guide does not establish a built-in download-finished event or a universal file workflow. Treat completion detection as something your own runtime and browser setup must supply, not as a Puppeteer download API.
- Set
policy: 'allow'orpolicy: 'allowAndName'and provide a writabledownloadPath. - Trigger the site’s download action, such as clicking its download link or submitting the relevant form.
- Use filesystem facilities in your environment to check for the expected file. For a completion check, avoid treating a file’s first appearance as proof that writing is finished; determine completion using a method supported by your particular setup.
- Validate the result for your use case—for example, check that the file exists, is non-empty, and can be parsed as the expected format.
Step 3 is an implementation pattern, not a promise that Puppeteer itself reports completion. If your test requires dependable completion signaling, use a browser/protocol-specific mechanism only after confirming it is supported by your installed Puppeteer and browser versions.
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Or skip the browser setup
If the task is to capture a page as an image or PDF rather than download a file generated by the page, ScreenshotNeo provides a website screenshot API and MCP server. One GET request can return a screenshot or PDF; it is not a replacement for automating arbitrary page downloads.
For example, this cURL request saves a WebP screenshot of a URL. See the ScreenshotNeo API documentation for parameters and formats.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webp- Cookie banners and consent prompts, newsletter popups, and chat widgets are removed before capture; each cleanup step can be turned off.
- Bot checks or CAPTCHAs, blank pages, timeouts, failed loads, and cache hits are not billed; responses identify page verdict and billing status in headers.
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Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Common problems and fixes
The file does not appear
- Check that the page action actually starts a download rather than opening a preview or navigating to another page.
- Confirm that the context uses an allowing policy and that
downloadPathpoints to a writable directory. - Check the browser process’s permissions and the filesystem path as seen by that process, especially if the browser runs in a container or remote environment.
The downloaded filename is unexpected
With allowAndName, GUID-based filenames are expected. Use allow if you need the browser’s normal naming behavior, while remembering the API does not promise a Puppeteer method to retrieve or manage the resulting file.
The script continues before the download finishes
A click completing only confirms that Puppeteer completed the click action; it does not establish that the file download is complete. The documented download behavior option supplies policy and path configuration, not a completion callback. Add completion detection using facilities supported by your particular runtime and browser setup.
The API option is missing or behaves differently
Check the API reference for the installed Puppeteer version and how the browser was launched or connected. The documented context and connection options describe configuration, but do not establish identical behavior for every browser or protocol.
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Do not confuse page downloads with installing Chrome
Installing Puppeteer can download a browser binary, but that is separate from a website downloading a file during automation. The puppeteer package downloads a compatible Chrome for Testing binary during installation. Starting with Puppeteer v19.0.0, the documented default cache is $HOME/.cache/puppeteer. By contrast, puppeteer-core does not download Chrome and is intended for cases where you connect to a remote browser or manage browser installation yourself. Puppeteer: Installation
Frequently Asked Questions
Can Puppeteer return the downloaded file as a buffer?
The Files guide does not document an API that returns a downloaded file or handles it as a file object.
Does setting downloadPath make Puppeteer wait for the download?
No. The documented option configures browser-context behavior and destination; it does not provide a completion callback.
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