Free Zendesk Help Center themes: what to look for and how to install one

Every Help Center starts with a free theme: Copenhagen, the one Zendesk ships. Others are free too, from vendors and open repositories. They differ a lot in how current and how careful they are. Five checks separate a theme you can run for years from one you will replace within a year.

Start with Copenhagen

Copenhagen is free with your plan and kept up by Zendesk. If you only change values in the Settings panel, it stays a standard theme. If you edit its code, it becomes a custom theme, and from then on you carry the maintenance. Any other free theme is a custom theme from day one. Whoever wrote it decides if it keeps up.

Copenhagen is a fair default. It is plain, widely used and has the fewest surprises. It has one palette, one header and no dark mode. If you need more, look at a free theme from a vendor, with the checks below.

What to check in a free theme

1. Templating API v4

Zendesk is retiring Templating API v1, v2 and v3. New accounts can no longer import those themes, and all accounts are blocked from 2027. A theme still on v3 is a theme you will have to replace. Open the theme's manifest.json and look for "api_version": "4", or ask the vendor. The theme deadline guide has the dates.

2. Accessibility

Zendesk's own accessibility article points to WCAG 2.1 AA. For a theme, that means three things you can test in ten minutes. Text and links meet contrast ratios in the default colors. You can reach every control with the keyboard and see where focus is. Headings follow a sensible order. Run a scan such as axe on the live demo. A vendor can only vouch for the theme, not for your articles.

3. Dark mode

Many visitors set their device to dark. Check whether the theme follows that setting, whether it has its own colors for dark, and whether the request form and other signed-in pages follow it as well. Our dark mode guide has a test you can run on any theme.

4. Maintenance

Look for a version number, a changelog and a date of the last update. Ask who answers questions and how. A free theme with no updates for a year, on a Help Center that Zendesk keeps changing, is a risk. Also ask whether you can read the source. If you cannot, you cannot fix a problem yourself.

5. What it loads

Open the theme's document_head.hbs and look at what it pulls in. Fonts from a font host are normal. Scripts from unknown domains are not. Check the licence too: some free themes allow use on one Help Center only.

Signs a free theme is not kept up

• The demo Help Center is down, or it shows an old Copenhagen design.
• The request form looks different from the rest of the theme. That page changed in v4, and abandoned themes often skip it.
• No version number, no changelog and no contact address.
• The listing promises features that the demo does not show.
• Reviews mention a bug in the same place, and the vendor has not replied.

None of these means the theme is bad. Together they mean you will be on your own when something breaks.

Questions to ask the vendor

If the answers are not on the theme's page, send these by email. A clear reply in a day or two tells you a lot about the support you will get later.

• Which Templating API version is it on, and when was it last updated?
• Which Copenhagen release is it based on?
• What happens when Zendesk changes the Help Center? Who ships the fix, and how do I get it?
• Can I use it on more than one brand or Help Center?
• Does it collect any data, or call any service other than Zendesk?
• Is there a way to report a bug, and is it answered?

Free or paid

A free theme is a good fit when your needs are a logo, brand colors and a clean layout. It is a weaker fit when you need several layouts, hand-set colors for dark mode, or a vendor who answers within a set time. Price does not predict quality in either direction. A paid theme can be stale and a free one can be careful. Use the five checks above on both.

How to install a theme in Guide

These steps follow Zendesk's import article and add a theme article. You must be a Knowledge admin.

1. In Guide, click Customize design in the sidebar.
2. Click Add theme in the upper-right corner.
3. Choose Import theme and select the zip file. The file name must be 30 characters or fewer.
4. Open the new theme with Customize. Set your colors, logo and favicon in the Settings panel.
5. Preview the home page, an article, search, and the request form. Check them on a phone-sized window too.
6. Publish it when you are happy. Only one theme is live at a time.

You can hold up to 10 themes, so keep your current live theme as a fallback. Never edit the live theme in place: copy it first, work on the copy, then publish the copy. A Marketplace theme may have its own install steps, so read its listing.

Where ZenTheme Nightfall fits

ZenTheme Nightfall is our free theme. It is on Templating API v4 and built on Copenhagen 4.51.4. It has 47 settings in Guide and no code to edit. What it adds to Copenhagen:

• The calm Graphite look.
• Dark mode that follows the visitor's system, in midnight blue, with your brand color lifted so links stay readable.
• ⌘K search from any page.
• A table of contents on long articles.
• Its own text in 32 languages.
• An announcement bar, footer links and hero text you can edit.

What it does not have: a light and dark toggle, separate palettes per mode, custom fonts or more than one look. Those are in the paid ZenTheme Pro. If Nightfall covers what you need, you do not need Pro. Nightfall is in Zendesk Marketplace review. Until it is listed, email hello@zenthemelab.com and we send the zip to import with the steps above.

Not affiliated with Zendesk.