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Listen for the page’s console event, then call text() on the event’s ConsoleMessage argument:
page.on('console', msg => {
console.log(msg.text());
});msg is not a string; it is a ConsoleMessage object. Its text() method returns the message text as a string.
Get console text from a Puppeteer page
Attach the listener to the Puppeteer Page you want to monitor. Register it before navigating or triggering the page code whose messages you need to capture:
page.on('console', msg => {
console.log(msg.text());
});The event callback receives a ConsoleMessage. Use msg.text() for its text representation; the result is a string. See the Puppeteer ConsoleMessage.text() reference.
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Capture messages in a runnable script
This CommonJS example starts a browser, subscribes to console messages, visits a page, and closes the browser even if navigation fails:
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
try {
const page = await browser.newPage();
page.on('console', msg => {
console.log(msg.text());
});
await page.goto('https://example.com');
} finally {
await browser.close();
}
})();Install Puppeteer in the project before running the script. Replace the example URL with the page you need to inspect. Listening before page.goto() ensures the handler is in place for messages emitted during navigation.
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Choose the right ConsoleMessage accessor
Text, original arguments, and metadata are separate pieces of information. Use the accessor that matches what your code needs:
| Need | Use | What it provides |
|---|---|---|
| A readable text string | msg.text() |
The console message text. |
| Individual values logged by the page | msg.args() |
The arguments passed to the console call, useful when the page logs multiple values or objects. |
| Message category | msg.type() |
The console message type. |
| Where the message originated | msg.location() or msg.stackTrace() |
Location or stack-trace information. |
For example, if page code calls console.log('count', 3), use text() when one text representation is sufficient. Use args() when you need to handle the logged values separately rather than treat the text as a structured array.
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Puppeteer’s console event covers page JavaScript console API calls and can also represent warnings or page errors. If your handler needs to distinguish categories, inspect msg.type() rather than inferring the type from the text:
page.on('console', msg => {
console.log(`[${msg.type()}] ${msg.text()}`);
});The event payload is the message object to consume. Do not construct a ConsoleMessage yourself: Puppeteer documents its constructor as internal and says third-party code should not call it. See the ConsoleMessage class reference and the PageEvent documentation.
Troubleshoot missing or unexpected output
- No message appears: Confirm the listener is attached to the same
Pagethat runs the code, and register it before navigation or the action that emits the message. - Your callback value has no
text()method: The event provides aConsoleMessage, not a string. Callmsg.text()inside the callback. - You need separate values or an object: Use
msg.args();text()provides text, not a structured argument list. - You need to distinguish warnings or errors: Inspect
msg.type()and, if needed, uselocation()orstackTrace()for origin details.
Or skip the browser setup
If your goal is to get a screenshot or PDF rather than inspect Puppeteer’s console events, ScreenshotNeo provides a website screenshot API and MCP server. A single GET request can return a screenshot or PDF; its capture options include viewport and full-page shots, element selection, PDF settings, waits, and custom headers or cookies. For API details and the available parameters, see the ScreenshotNeo documentation.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://example.com -o shot.webpScreenshotNeo accepts cookie banners before capture and removes more than 60 known consent platforms, newsletter popups, and chat widgets; each step can be turned off. Bot checks, blank pages, timeouts, failed loads, and cache hits are not billed, and response headers identify the page verdict and billing status. Its MCP server lets AI agents use take_screenshot, get_page_info, and capture_pdf. The Free plan includes 1,000 screenshots per month with no card; paid plans start at $5 for 3,000.
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