How to disable selenium logs AND run the browser in headless mode

Question

This is my code as of now:

from selenium import webdriver

from webdriver_manager.chrome import ChromeDriverManager
from selenium.webdriver.chrome.service import Service

options = webdriver.ChromeOptions()
options.add_experimental_option("excludeSwitches", ["enable-logging"])

if not("-dhl" in sys.argv or "--disable-headless" in sys.argv):
    options.add_argument("--headless=new")

self.driver = webdriver.Chrome(
    service=Service(ChromeDriverManager().install()),
    options=options
)

driver.get("https://google.com")

The problem is only 1 of them will work at the same time, meaning if I try to run the browser without headless mode (run with the --disable-headless flag) the logs are turned off but if I don't do that the browser will run in headless mode but still display logs.

I've already tried using options.headless = True, disabling logs through logging module and setting it to logging.CRITICAL through the logging module and even through the selenium logging, changing the order of these 2 sections to ensure the settings aren't being overwritten but none of them seems to be the issue.

In short, I can't do both things simultaneously for some unknown reason.

This question is similar to: How to run headless Chrome with Selenium in Python?. If you believe it’s different, please edit the question, make it clear how it’s different and/or how the answers on that question are not helpful for your problem. — Gerwerus
– Gerwerus, Commented Aug 19 at 19:35
Yes but only that's 1 part of the question my problem is I can't do both simultaneously, only one of them works at a time — Ahmad
– Ahmad, Commented Aug 19 at 19:47
Unrelated to the question, but you should stop using webdriver_manager. It is outdated and unsupported. Selenium itself provides everything you need for downloading and managing drivers: selenium.dev/documentation/selenium_manager — Corey Goldberg
– Corey Goldberg, Commented Aug 20 at 15:27

0ro2 · Accepted Answer · 2025-08-20 18:41:46Z

4

You need to direct ChromeDriver logs to os.devnull:

service = Service(
    ChromeDriverManager().install(),
    log_output=os.devnull
)

Then suppress the urllib3, selenium, WDM, and webdriver-manager logs, two ways to do this:

The normal way:

logging.getLogger("selenium").setLevel(logging.CRITICAL)
logging.getLogger("urllib3").setLevel(logging.CRITICAL)
logging.getLogger("WDM").setLevel(logging.CRITICAL)
logging.getLogger("webdriver_manager").setLevel(logging.CRITICAL)

If you want something more aggressive (filter all logs besides CRITICAL and FATAL)
```
logging.getLogger().setLevel(logging.CRITICAL)
```

Also turn down Chrome's logging

options.add_argument("--log-level=3")

This should help!

edited Aug 20 at 18:41

answered Aug 19 at 20:11

0ro2

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5 Comments

Ahmad Aug 19 at 21:56

Thank very much that actually works wonderfully well out of all the answers I've tried, most of the logs are hidden now and only these 2 are left

DevTools listening on ws://127.0.0.1:62248/devtools/browser/ed14dacf-69dc-46a1-866e-4b62c52801fa  WARNING: All log messages before absl::InitializeLog() is called are written to STDERR  I0000 00:00:1755640509.419023    6492 voice_transcription.cc:58] Registering VoiceTranscriptionCapability

that I think I can bear them, would've been nice if they were to hide too tho ;)

0ro2 Aug 19 at 23:35

Try sys.stderr = open(os.devnull, 'w'), now this most likely could suppress important error messages later on so you are warned. Also add options.add_argument("--disable-dev-shm-usage"), again the same, you have been warned. Glad to help!

Corey Goldberg Aug 20 at 15:11

@Ahmad, you essentially can't disable the "DevTools listening..." messages at the moment. I hope to have that fixed soon: github.com/SeleniumHQ/selenium/issues/16117

Corey Goldberg Aug 20 at 15:25

@Oro, I edited your answer. The log_path arg was replaced with log_output several years ago.

0ro2 Aug 20 at 15:29

Woops, okay, I looked at the documentation and you are right. selenium.dev/documentation/webdriver/browsers/chrome/…

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