xAttribute

How to integrate xAttribute with Webflow

Webflow sites often require custom HTML attributes for JavaScript interactions, accessibility labels, analytics tracking, and third-party integrations. Adding these attributes manually across multiple elements can become repetitive and error-prone as projects scale.

xAttribute streamlines custom attribute management through template creation, autocomplete suggestions, and cross-project deployment. For developers building custom functionality, Webflow's Data API supports programmatic attribute management through REST endpoints.

Learn how to integrate xAttribute with Webflow through marketplace app installation, custom code embeds, and API integration patterns for managing attributes at scale.

Use the xAttribute app

The xAttribute marketplace app installs directly into Webflow and adds an interface for adding custom HTML attributes without writing code. To install it, go to your Apps panel and search "xAttribute." Then, click on Install.

To add an attribute from your templates, select any element > Element Settings > Custom Attributes → + icon. The interface provides autocomplete for attribute names and values based on common patterns.

Key features:

• Template management through the xAttribute dashboard for creating reusable attribute sets with name-value pairs
• Export and import via JSON for deploying consistent attribute configurations across multiple sites
• Autocomplete suggestions that populate attribute names and values automatically
• Update attributes in one place for changing attributes across all instances from a single management interface

Custom code embeds and inline scripts

Webflow's native embed elements support custom attribute management through HTML and JavaScript. Use this for site-specific implementations that don't require cross-project templates.

Element-level custom attributes

Webflow's Custom Attributes setting adds attributes directly to any element. Select your target element, then go to Element Settings > Custom Attributes, and add the name-value pairs manually.

For dynamic CMS content, use Collection fields in custom code to embed field values as attributes. Click the purple dot in the attribute value field, then select your CMS field. The values will populate dynamically for each collection item.

Site-wide attribute scripts

Using custom code in head and body tags adds JavaScript that applies attributes across your entire site. Navigate to Site Settings > Custom Code. Then, add your script to the Head Code section.

Some common patterns using site-wide scripts include:

• JavaScript attribute injection that applies attributes based on user behavior, page context, or conditional logic
• Third-party library initialization that requires specific data attributes for tracking, analytics, or functionality
• Accessibility enhancements that add ARIA labels, roles, or states dynamically based on element context

Inline HTML embeds

Webflow's Custom Code Embed element accepts up to 50,000 characters of HTML, CSS, and JavaScript per embed. Drag the Embed element from the Add panel > Advanced section. Then, paste your code into the editor.

Embed code executes only on published sites and displays as a placeholder in your preview. Use this for isolated components that need specific attribute configurations without affecting other page elements.

Build with Webflow and xAttribute API

Webflow doesn't provide a separate xAttribute API since the tool operates as a plugin. Instead, use Webflow's Data API to programmatically manage site content that includes custom attributes.

Managing CMS items with custom attributes

The CMS Collections API supports programmatic content management that includes custom field data:

GET https://api.webflow.com/v2/sites/{site_id}/collections
GET https://api.webflow.com/v2/sites/{site_id}/collections/{collection_id}
POST https://api.webflow.com/v2/sites/{site_id}/collections
DELETE https://api.webflow.com/v2/sites/{site_id}/collections/{collection_id}

The Collection Items endpoints manage individual content entries:

GET https://api.webflow.com/v2/collections/{collection_id}/items
POST https://api.webflow.com/v2/collections/{collection_id}/items
PUT https://api.webflow.com/v2/collections/{collection_id}/items/{item_id}
PUT https://api.webflow.com/v2/collections/{collection_id}/items?bulk=true

Key parameters include limit (maximum 100 items per request), offset for pagination, and filter for JSON-encoded field matching. Bulk operations support up to 100 items per request.

Real-time content synchronization

The Webhooks documentation covers event-driven integration patterns for detecting content changes:

POST https://api.webflow.com/v2/sites/{site_id}/webhooks
GET https://api.webflow.com/v2/sites/{site_id}/webhooks
DELETE https://api.webflow.com/v2/sites/{site_id}/webhooks/{webhook_id}

Relevant webhook events from the All Events reference:

• collection_item_created detects new CMS items for triggering external workflows
• collection_item_changed fires when items update, enabling real-time sync with external databases
• collection_item_deleted handles cleanup in connected systems
• site_publish notifies external services when content goes live

Webhook payloads include standard fields like _id, slug, name, created-on, and updated-on plus any custom fields defined in your collection schema. Webflow signs webhook requests with HMAC SHA-256 for validation.

What you can build

Integrating xAttribute with Webflow supports custom interactions, third-party tool connections, accessibility improvements, and dynamic content behavior across your sites.

• Interactive product configurators: Build custom product selection tools with data attributes that track user choices, update pricing dynamically, and pass configuration data to checkout systems
• Accessible navigation systems: Add proper ARIA labels, roles, and states to navigation elements for screen reader support and keyboard navigation compliance
• Analytics event tracking: Attach data attributes to buttons, links, and forms that fire custom analytics events for detailed user behavior tracking in Google Analytics or Mixpanel
• Dynamic content filtering: Create filterable portfolio galleries, product catalogs, or blog archives using custom attributes that JavaScript libraries like Isotope or MixItUp read for sorting and filtering logic