Simulate limited bandwidth from within Chrome

Question

Is there a way I can simulate various connection speeds from within Chrome   I need to be able to check http   localhost with varying speeds   I know there are standalone applications that can do this  but I d rather do this inside Chrome

User · Answer

As suggested on the Chrome Mobile Emulation page  you can use Clumsy on Windows  Network Link Conditioner on Mac OS X and dummynet on Linux

User · Answer

I don t think what you ask can be done by chrome alone   The closest I could find was this  which isn t what you want   I getting a chrome plugin to do it would be Hard   A web proxy running on your local machine could achieve the effect you want   A search for  throttling proxy  came up with this  for example

User · Answer

As Michael said  the Chrome extension API doesn t offer a reliable way of doing this  On the other hand  there s a software I ve been using myself for quite some time   Try Sloppy  a Java application that simulates low bandwidth  It s browser independent  it s very easy to use and  best of all  it s free

User · Answer

Starting with Chrome 38 you can do this without any plugins  Just click inspect element  or F12 hotkey   then click on toggle device mod  the phone button     and you will see something like this     Among many other features it allows you to simulate specific internet connection  3G  GPRS

User · Answer

In Chrome Canary now you can limit the network throughput  This can be done in the  quot Network quot  options of the  quot Emulation quot  tab of the Console in the Dev Tools  You might need to activate the Chrome flag  quot Enable Developer Tools experiments quot   chrome   flags  enable-devtools-experiments   chrome   flags  to see this new feature  You can simulate some low bandwidth  GSM  GPRS  EDGE  3G  for mobile connections

User · Answer

As of today you can throttle your connection natively in Google Chrome Canary 46 0 2489 0  Simply open up Dev Tools and head over to the Network tab

User · Answer

If you are running Linux  the following command is really useful for this   trickle -s -d 50 -w 100 firefox   The -s tells the command to run standalone  the -d 50 tells it to limit bandwidth to 50 KB s  the -w 100 set the peak detection window size to 100 KB  firefox tells the command to start firefox with all of this rate limiting applied to any sites it attempts to load   Update  Chrome 38 is out now and includes throttling  To find it  bring up the Developer Tools  Ctrl Shift I does it on my machine  otherwise Menu- More Tools- Developer Tools will bring you there   Then Toggle Device Mode by clicking the phone in the upper left of the Developer Tools Panel  see the tooltip below      Then activate throttling like so     If you find this a bit clunky  my suggestion above works for both Chrome and Firefox

User · Answer

Original article  https   helpdeskgeek com networking simulate-slow-internet-connection-testing   Simulate Slow Connection using Chrome Go ahead and install Chrome if you don   t already have it installed on your system  Once you do  open a new tab and then press CTRL   SHIFT   I to open the developer tools window or click on the hamburger icon  then More tools and then Developer tools     This will bring up the Developer Tools window  which will probably be docked on the right side of the screen  I prefer it docked at the bottom of the screen since you can see more data  To do this  click on the three vertical dots and then click on the middle dock position     Now go ahead and click on the Network tab  On the right  you should see a label called No Throttling     If you click on that  you   ll get a dropdown list of a pre-configured speed that you can use to simulate a slow connection     The choices range from Offline to WiFi and the numbers are shown as Latency  Download  Upload  The slowest is GPRS followed by Regular 2G  then Good 2G  then Regular 3G  Good 3G  Regular 4G  DSL and then WiFi  Pick one of the options and then reload the page you are on or type in another URL in the address bar  Just make sure you are in the same tab where the developer tools are being displayed  The throttling only works for the tab you have it enabled for   If you want to use your own specific values  you can click the Add button under Custom  Click on the Add Custom Profile button to add a new profile     When using GPRS  it took www google com a whopping 16 seconds to load  Overall  this is a great tool that is built right into Chrome that you can use for testing your website load time on slower connections  If you have any questions  feel free to comment  Enjoy

User · Answer

I d recommend Charles Proxy - you can choose to slowdown individual sites  also has a whole bunch of HTTP inspection tools   Edit   As of June 2014  Chrome now has the ability to do this natively in DevTools - you ll need Chrome 38 though   The option is accessible from the Network tab via a drop down at the end of the toolbar

User · Answer

If you are on a Mac  the Chrome dev team recommend the  Network Link Conditioner Tool   Either   Xcode  gt  Open Developer Tool  gt  More Developer Tools  gt  Hardware IO Tools for Xcode   Or if you don t want to install Xcode   Go to the Apple Download Center and search for Hardware IO Tools   https   developer apple com downloads index action

User · Answer

if you re not familiar with Fiddler - please do  It s a great debugging tool for HTTP  You also have the option to limit the bandwidth

User · Answer

If you are using OSX  you can use  Network Link Conditioner    Here you can select different profiles ie  100  Loss  3G  DSL etc    Please find the below link to download Network Link Conditioner here

User · Answer

Note  do not use Chrome s built in Speed Tester  it will show you unthrottled speed   Instead use another site  like Fast com  That will show you properly throttled speeds   Also  the throttling settings might be hidden and can be accessed from the network bar by clicking the tiny down arrow

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