Forums/Documentation/Zendesk basics

Zendesk system requirements

Anton de Young
posted this on May 30, 2012 14:16

Zendesk is a Web-based SaaS (software as a service) application that runs in a Web browser. We support the following Web browsers running in Windows or Mac OS X.

For the agent/administrator user interface:

  • Google Chrome v. 30 and higher
  • Mozilla Firefox v. 18 and higher
  • Apple Safari v. 6.1 and higher
  • Microsoft Internet Explorer v. 9 and higher

For the end-user Web Portal (Zendesk Classic) and Help Center (new Zendesk):

  • Google Chrome v. 19 and higher
  • Mozilla Firefox v. 10 and higher
  • Apple Safari v. 5 and higher
  • Microsoft Internet Explorer 8 and higher
  • Partial support for IE7. It's usable but not pixel-perfect.

For the mobile version:

  • Apple iOS 4 and higher

  • Google Android 2.3 and higher

Note: Our testing suggests that Google Chrome provides the best performance when running Zendesk.

Your browser must be a stable release version, not an Alpha/Beta/Nightly/Development build. This applies to all browsers, regardless of operating system.

Make sure your computer meets or exceeds the minimum hardware requirements for your operating system (Windows or Mac OS X). See the Microsoft or Apple website for the requirements.



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Dafna Sivan


Can you please send me details about the latest version name, and it's features? (for Enterprise) I can't find it anywhere.


April 29, 2013 10:35
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Jennifer Rowe

Hi Dafna,

We do automatic updates/releases almost every week. You can read about the latest features and enhancements here:

We do have two versions of our agent interface, Classic Zendesk and new Zendesk. All of our documentation describes how to use the features in both interfaces. If you are a new customer you are most likely using the new version of the UI.

The new version of Zendesk looks like this:


And Classic Zendesk looks like this:


April 29, 2013 10:45
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Ricardo Alfaro

End Users are having problems viewing our Zendesk "Submit a Request" page in IE9. I have to go to developer tools (F12) and change the Browser Mode to IE9 Compatibility View for the "submit a request" page to look right. Here is what the page looks like without changing this setting.

Notice only Attachment(s) and Screencast(s) is showing...

Is this a known issue?


August 16, 2013 06:59
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Laura D.


Not that I'm aware of but I'm still investigating. Do you happen to know if anything was recently changed with Javascript or CSS widgets in the Extensions area? 

August 19, 2013 14:06
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Ricardo Alfaro

We do have some custom Javascript widgets, but they haven't changed since we implemented them about 3 months ago. It seems to work on most now that we are looking into it more. There are a couple of our customers that are experiencing the problem so I wonder if they are missing some sort of update or received one recently that caused the issue. 

I'll open a ticket if I see it happen more often. Thanks for the response!

August 19, 2013 17:05
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Laura D.

Sure thing! I'm glad it's not affecting too many users, if you do see it come up more or notice a pattern definitely let us know.

August 20, 2013 17:02
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Chrome caches too much of dynamically downloaded content thus not refreshing what has been changed.
This behaviour is very annoying because it forces agent to reload whole webpage to see the effect (CTRL+F5 works best in such a case).
It is visible especially when creating, editing or merging oranizations or endusers.
There is no setting within Chrome browser to disable the cache.
IE works better in such cases.

September 24, 2013 01:11
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Taras Savchuk

Add Hardware requirements, please for normal user experience.

You support tech just told me in ticket ( that it's not good configuration for new Zendesk UI:

HW: Core i3-2350M 2.3Ghz/4Gb/120Gb SSD

OS: Win 8 x64 Pro

Can't believe I need a better PC to run ticketing software! :(

September 24, 2013 11:18
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Itsuya Kosaka
  • Microsoft Internet Explorer 7 and higher

Are you sure? Our web-portal looks like CSS-disabled with IE 8.

September 30, 2013 22:47
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Jake Holman
Product Manager

@Taras: Sorry, I don't think the agent in that ticket had meant it quite that literally. 4GB should be enough for Zendesk.

However, 4GB is generally low for a heavy 64 bit operating system, as Windows will basically need 2GB straight off. This leaves 2GB for everything else, which unfortunately just isn't all that much these days. That said, that works out for some people just fine, it truly depends on many other factors.

@Itsuya: Would you mind going ahead and submitting a ticket? Let us know where we can access your web portal and we should be able to help. For what it's worth, nothing looks that good in IE7 or 8 due to their incredibly outdated support for CSS and HTML.

October 01, 2013 09:48
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Richard Aspinall


Further to the above, I can see the hardware discussion, but I need clarification.

I am just looking into slowness with some colleagues machines when using Zendesk.

They are using pretty rubbish machines, but still need to make sure before we upgrade. 

-Atom 1.79 GHz D525 processor

-4 GB Ram (3 Usable due to 32 Bit)

Two other users run fine using i5 machines etc so I am putting it down to hardware.

Please post recommended requirements for heavy users.



October 23, 2013 16:14
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Jake Holman
Product Manager

@Richard: Is that 32-bit Windows Vista?

October 23, 2013 16:23
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Richard Aspinall

Hi Jake,

Windows 7 Professional 32-Bit


October 23, 2013 16:28
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Jake Holman
Product Manager

@Richard: Ah, it's possible the Atom chip is bottlenecking you, do you know if it's the "S1" series of Atoms? I think an upgrade would help you out here.

October 23, 2013 17:38
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Richard Aspinall

Not sure on what series but its time to upgrade, cheers for that Jake!


October 23, 2013 18:22
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Maria Nørgaard

We continuously experience problems when agents use Zendesk in IE11.

Will these bugs be fixed?

January 21, 2014 06:27
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Hi Maria, 

I've created a support ticket to troubleshoot what you've experienced and I'll see you in that ticket shortly!

January 21, 2014 10:11