Installation
One line of code. That is all.
You paste one line into the custom code field of your website builder. After that the assistant appears on every page.
The line
This is what the line looks like.
<script src="https://app.nexjuai.com/widget.js" data-kennung="YOUR-ID" defer></script>Even easier with WordPress and Shopify.
- WordPress
Our plugin for WordPress
In WordPress, search for “NexJu AI” under Plugins, install and activate the plugin and paste your line of code into its settings. You do not change anything in the theme.
In the WordPress.org plugin directory - Shopify
Our app for Shopify
With the app you set up the assistant right in the Shopify admin and switch it on in your theme with a toggle, without a line of code. You choose your plan and price in Shopify; billing is handled there in US dollars.
Submitted to Shopify for review. Until it is approved, you add the line of code to your theme.
Your provider
How it works with your builder.
25 guides, each with a video, in English and German. Some plans have no field for custom code; installation is not possible on those plans. Each guide says which ones.
WordPress
Add the code to the footer of all pages using our own plugin or the free WPCode plugin.
Not on the free WordPress.com plan.Open guideWix
In the site dashboard under Custom Code, position Body – end.
Not for free Wix websites without their own domain.Open guideJimdo
With Jimdo Creator under Settings, Edit Head.
Not with the Jimdo Website Builder (formerly Dolphin).Open guideIONOS
In MyWebsite Now under Settings, Head code.
Not on plans without the HTML module and head code.Open guideSquarespace
In the Code Injection menu, in the Footer field.
Not on plans without code injection.Open guideShopify
In the theme code in the file theme.liquid, directly before the end of the page.
Our Shopify app has been submitted to Shopify for review.Open guideGoogle Tag Manager
As a Custom HTML tag with the trigger All Pages.
Open guideAnother provider or your own HTML
The line belongs on every page, directly before the end of the page.
Not on website builder plans without a field for custom code.Open guide
More guides:STRATOWebflowOnepageFramerGoDaddyWebadorHostingerWebnodeDudaHubSpotTYPO3JoomlaContaoShopwareGhostCarrdGoogle Sites
We have checked the route with our WordPress plugin ourselves in WordPress 7.1. The other steps come from the providers’ help pages, read in October 2026; we have not yet clicked through them in an account with each provider. As far as we know, the assistant cannot be installed on Google Sites; there the assistant remains available as a page of its own with link and QR code.
Your web designer installs it
The account has the button “Create an email to my web designer”. It opens a ready-made email with your line of code and one sentence on where it belongs.
Check whether it worked
The button “Check installation” looks at your home page and says in one sentence what it finds.
- installed
- wrong ID
- nothing found
The help assistant
It knows all guides and can check the installation on your website. If it gets stuck, it takes a message for us.
Only on your domain
The assistant only runs on the domain you set it up for, with and without www. At any other address, the code remains inactive.
Step by step to your own assistant.
The first seven days are free. Pause at any time, continue later.