I am trying to debug the features of a website when users disable their JavaScript. I was wondering how do you disable JavaScript for a page from the Google Chrome DevTools?
Click the gear icon in the corner of the Developer Tools, click Settings, then under Debugger, check Disable Javascript, as shown in the following video:
Update August 2020
Developer Tools (F12)
Click the Gear icon
Should open the Preference tab
Disable Javascript option is on the far right
Original answer
Developer Tools (F12)
Three vertical dots in upper right
Settings
Under the "Preferences" tab on the left
There will be a "Debugger" section with the option (probably on far right)
Official documentation: Disable JavaScript With Chrome DevTools
There's now a command menu built into DevTools that makes it easier to disable JavaScript. This has been around as of April 2016 or so.
Open DevTools.
Press Command+Shift+P (Mac) or Control+Shift+P (Windows, Linux) to open the Command Menu. Make sure that your cursor's focus is on the DevTools window, not your browser viewport.
Type Disable JavaScript (or some version of that... it's a fuzzy search) and then press Enter.
Use the Enable JavaScript command when you want to turn it back on.
chrome://settings/content Javascript/Manage Exceptions
This extension makes it faster (I am the author) : Quick Javascript Switcher
It is open source: https://github.com/maximelebreton/quick-javascript-switcher
You can also run Chrome with JavaScript disabled by default by using the flag:
-disable-javascript
You would use this for example by running Chrome like this:
C:\Documents and Settings\%username%\Local Settings\Application Data\Google\Chrome" -disable-javascript
The quickest way is problably this one:
F12 to open the dev console
ctrl + shift + p to open the command tool (windows)
Type 'disable javascript' and hit enter
On OSX, I had to click the triple vertical dots, and uncheck a box in the settings section. Which can also be opened with f1
Using only the keyboard at least for Windows 10:
F12, shows Developer Tools
F1, shows Settings
tab, moves to the "Disable Javascript" check box
space, toggles the option
esc, hides Settings
The fast way:
1) just click on CTRL + SHIFT + P
2) fill the field by the 3 letters dis and will appear this box and select the item Disable Javascript
.
that's all folks!
On Mac OS X:
Preferences
Show advanced settings
Press the "content settings" button
Scroll to the "JavaScript" section
Check the checkbox in front of "Do not allow any site to run JavaScript"
The Chrome Quick JavaScript Switcher extension is a lot easier though :-)
Go to options (Windows: three vertical dots in the top right) -> Settings, or hit F1.
In the General section you find "disable JavaScript"
The gear icon is no longer part of developer tools. Since Chome 30.0 it is not even possible to bring it back (In Google Chrome Developer Tools, the toolbar icons disappeared. What gives?)
To temporarily block JavaScript on a domain :
Click on the Button left to the address on the address bar (which says View site information)
In the drop-down next to JavaScript, select Always block on this site
Reload Page
Click the ⋮ menu in the corner of the Developer Tools, click Settings
Click on Advanced at the bottom
Click on Content Settings
Click on JavaScript
Switch off
Full and fast instructions for Chrome browsers (Opera incl.)
The first way
If Developer Tools aren't open then press F12 key on keyboard to show the Developer Tools. In Opera browser you have to use key combination Ctrl + Shift + i on keyboard to open it.
To show the settings just press F1 key on keyboard. The Developer Tools window must be focused when you are doing it. Or if you want to open the settings with the mouse then you have to click on ⋮ button in the top right corner of the Developer Tools, then click Settings in the menu.
Then you have to scroll down the settings window to bottom and then you will see the checkbox for disabling JavaScript like follows:
Just click on this checkbox and push esc key on keyboard for hide the settings. If you want to enable it then you have to do the same way again.
The second way
If Developer Tools aren't open then open it like in the first way is described.
Press the key combination Ctrl + Shift + P (for Windows or Linux) or Cmd (⌘) + Shift + P (for Mac) to open the Command Menu. Be sure that the focus is on the DevTools window.
Type there "Disable JavaScript" and then press Enter or click it with the mouse. If you want to turn back the enanled JS then open the Command Menu again and type there "Enable JavaScript" and then press Enter or click it with the mouse. You could also write just only "JavaScript" or "Java" there and then choose it with the mouse.
If all this does not work
For some reason it is possible that it does not work. I this case open a new empty site in "Incognito Mode" and do all this there.
The quickest way
In Chrome Web Store or on Opera Addon site you can find and install extensions which do it per one click. Just search "Javascript Switcher":
For Chrome browser
For Opera browser
Press F8 for temporarily freezing / unfreezing JS (with DevTools open).
This is very useful for debugging UI issues on elements that may lose focus if you click or press anything outside of that element. (Chrome 71.0.3578.98, Ubuntu 18.10)
Paste it: chrome://settings/content
Go to "Javascript" section and disable it.
Chrome://chrome/settings/Privacy/Content settings/JavaScript
and there you can PASTE your website's URL in Manage exceptions.. and change the JavaScript priority from ALLOW to BLOCK.
This is the latest setting for the windows
Settings > Advanced > Privacy and security > Site Settings > Javascript > Blocked then get switch on and off
good question, i try so many way, but it is curry and boring, until i find shortcut.
alt + cmd + i, this open dev tools, unless you use pocket, that need set other shortcut.
shift + cmd + p, then input: javascript
only two shortcut, but i think safari is more convenient for that.
There's a settings in chrome
open the menu from chrome,
click settings > type in "javascript" in the search bar > click site settings > click javascript.
from here you can toggle javascript specifically to a site using their url.
or just click the big button to allow/block it to all sites.
I arrived here simply wanting to know how to disable javascript in chrome:
Right click on the website
Click "inspect"
Hit keys: ctrl + shift + p
Type: "Java"
Click "disable JavaScript"
Refresh page
It's from here
Related
I'm just moved to windows 10.
And have latest version of Google Chrome on it.
But whenever I tried to access developer’s tool it shows nothing.
I have tried,
1) Right Click + Inspect element.
2) F12.
3) Right corner tab on Google chrome + more tools + developers tool.
But none of them working.
Please help.....
I don't know what is missing.
I had the same issue but in my scenario I was on a Virtual Machine with some complex display settings. The procedure here worked for me in other contexts:
You should see the process in the Windows bar on the bottom of your screen.
When you click on it, nothing is shown.
Bring back in the viewport
If the conditions above apply, then the window is simply displayed out of the display viewport. TO bring it back, do the following:
Make sure you have selected the window in the Windows bar.
Hit ALT + SPACE to show the menu
Select "Maximize".
The window should appear in one of your monitors.
Drag it around and resize it.
You should try also Ctrl+Shift+I for windows as written on the following doc
https://developers.google.com/web/tools/chrome-devtools/
I fixed this of this way
Open chrome dev tools
using the chrome page that you need debug press Win + "<" (left arrow)
windows ask you which window you want to the right and select chrome dev tool icon, but click should be in the icon instead of the rectangle of the windows
Just had the same problem. The window is apparently minimized.
On windows, hold the mouse on the chrome icon in the taskbar, when the thumb shows up, right click on it and select maximize window.
First thing i would try is closing all processes and restarting Chrome and if that doesn't work i would uninstall and reinstall chrome
I know this isn't really an answer but hope it might help
Goodluck!
Chrome -> Setting -> Extensions (Side Menu) -> Turn on Developer Mode
Had the same issue, The thing is just minimized. Hover over the side of the options at the bottom and drag to top and you will see the options.
see following image and hover over ht area highlighted in yellow
Your dev-tool might be on your second monitor, which you are not looking at but connect with your PC.
Disclaimer: Please try this at your own risk, I'm not fully aware of its consequences. It apparently clears chrome's local storage for all websites
All the solutions I saw didn't work for me, but this one did:
I deleted this folder:
// AppData\Local\Google\Chrome\User Data\Default\Local Storage\leveldb
If you enter a command in Chrome Dev tools (which could be one big block of code) and hit enter, is there a way to "undo" changes made to the DOM? Or do you simply have to refresh the page?
I too was looking for an answer to this question beyond "refresh the page"... Stumbled across this solution:
Enter Chrome dev tools (CMD + Shift + I on Mac)
Click the three dots aligned vertically to get the settings menu
Hover over "More Tools" then go to "Changes"
On the changes window you can see all the changes made during your current DOM editing session - to revert them all, simply click the
undo arrow in the bottom left...
See the visual below
Reset all changes made in Chrome dev tools
Depends on what that code actually does. For example if you change something in the style (css) or structure (html), if you refresh it will show the original page. But if that code changes a cookie value, refreshing is not enough, or even closing the browser and opening again.
While debugging a web page in Chrome, my finger slipped and I pressed a combination of something (around the F12 key) on the keyboard. I got this screen:
Which is incredibly handy for developing mobile pages and actually something I've been looking for. Now I can't figure out how I got this.
So, how do I get back to this screen.
That's the emulation screen, press F12 then click on the mobile in the top left corner.
Simple, press F12 to open up the developer console.
Then, to show the device choice options:
Ctrl + Shift + M in Windows/Linux
Cmd + Shift + M in Mac
To show the ruler, go to:
Under Settings > General > Show rulers a ruler can be enabled which
will be displayed when you hover over or select an element in the
Elements panel.
All keyboard shortcuts for Chrome can be found here:
https://developer.chrome.com/devtools/docs/shortcuts
I am using Internet Explorer 8, by choice. I need to debug a script in it. However, no matter how many times I click the Developer Tools Icon, under Tools or when I click F12 it will not show up. Sometimes, I can see that it is minimized in the taskbar but when I actually go to click it. It will not show up...
You may do Alt+Spacebar, then hit ‘m’ and start using your arrow keys to move the window around. And also check that link
When using Google Chrome, I want to debug some JavaScript code. How can I do that?
Try adding this to your source:
debugger;
It works in most, if not all browsers. Just place it somewhere in your code, and it will act like a breakpoint.
Windows: CTRL-SHIFT-J OR F12
Mac: ⌥-⌘-J
Also available through the wrench menu (Tools > JavaScript Console):
Windows and Linux:
Ctrl + Shift + I keys to open Developer Tools
Ctrl + Shift + J to open Developer Tools and bring focus to the Console.
Ctrl + Shift + C to toggle Inspect Element mode.
Mac:
⌥ + ⌘ + I keys to open Developer Tools
⌥ + ⌘ + J to open Developer Tools and bring focus to the Console.
⌥ + ⌘ + C to toggle Inspect Element mode.
Source
Other shortcuts
Press the F12 function key in the Chrome browser to launch the JavaScript debugger and then click "Scripts".
Choose the JavaScript file on top and place the breakpoint to the debugger for the JavaScript code.
Ctrl + Shift + J opens Developer Tools.
In Chrome 8.0.552 on a Mac, you can find this under menu View/Developer/JavaScript Console ... or you can use Alt+CMD+J.
Here, you can find the shortcuts to access the developer tools.
https://developer.chrome.com/devtools/docs/shortcuts
Shift + Control + I opens the Developer tool window. From bottom-left second image (that looks like the following) will open/hide the console for you:
To open the dedicated ‘Console’ panel, either:
Use the keyboard shortcuts
On Windows and Linux: Ctrl + Shift + J
On Mac: Cmd + Option + J
Select the Chrome Menu icon, menu -> More Tools -> JavaScript Console. Or if the Chrome Developer Tools are already open, press the ‘Console’ tab.
Please refer here
Now google chrome has introduce new feature. By Using this feature You can edit you code in chrome browse. (Permanent change on code location)
For that Press F12 --> Source Tab -- (right side) --> File System - in that please select your location of code. and then chrome browser
will ask you permission and after that code will be sink with green color. and you can modify your code and it will also reflect on you code location (It means it will Permanent change)
Thanks
For Mac users, go to Google Chrome --> menu View --> Developer --> JavaScript Console.
The most efficient way I have found to get to the javascript debugger is by running this:
chrome://inspect
F12
opens the developer panel
CTRL + SHIFT + C
Will open the hover-to-inspect tool where it highlights elements as you hover and you can click to show it in the elements tab.
CTRL + SHIFT + I
Opens the developer panel with console tab
RIGHT-CLICK > Inspect
Right click any element, and click "inspect" to select it in the Elements tab of the Developer panel.
ESC
If you right-click and inspect element or similar and end up in the "Elements" tab looking at the DOM, you can press ESC to toggle the console up and down, which can be a nice way to use both.
These are the tools you see
Press the F12
From the console in Chrome, you can do console.log(data_to_be_displayed).