A/B Paragraphs is a lightweight module for running basic A/B tests using the Drupal Paragraphs system. Editors can test two content variants, track user interaction, and send simple analytics events.

Features

A/B Paragraphs adds a new Paragraph type called A/B Test that allows editors to run basic A/B tests within Drupal content. Each test consists of Variant A and Variant B, with configurable display ratios (e.g., 50/50, 90/10).

Only one variant is shown to a user per session, and the rendering is handled on the frontend using JavaScript. The module suggests tracking code for each variant based on links found in the content. Editors are free to edit or replace these suggestions.

The module does not perform analytics or reporting itself but allows you to send click events to your analytics tool (e.g., Google Analytics or Matomo).

A/B Test Paragraph type with two content variants
Session-based rendering: one variant per user per session
Unique ID and configurable distribution ratio
Separate tracking code fields for each variant
Tracking code suggestions based on link analysis
Click event tracking via onclick attributes

Post-Installation

After installation, the module automatically creates a new Paragraph type called ab_test and adds the following fields:

field_variant_a
field_variant_b
field_tracking_code_a
field_tracking_code_b
field_unique_id
field_distribution

Manual configuration is required to enable and arrange the fields:

Go to: /admin/structure/paragraphs_type/ab_test/form-display
Then to: /admin/structure/paragraphs_type/ab_test/display

Ensure that the tracking code fields use the Plain text (multiple lines) widget and that all necessary fields are enabled, visible, and editable.

Additional Requirements

This module requires the Paragraphs module.

Recommended modules/libraries

This module is compatible with any analytics solution that accepts custom events. Common choices include:

Similar projects

For more advanced A/B testing functionality—including multivariate testing, targeting, personalization, and analytics dashboards—consider:

VWO – Full-featured testing, heatmaps, and audience segmentation
Optimizely – Robust experimentation platform with strong Drupal integration

Unlike those platforms, A/B Paragraphs is minimal and does not require external services.

Supporting this Module

If you find this module useful and want to support future development, feel free to reach out via the issue queue or contribute code and feedback.

Community Documentation

Documentation, usage guides, and examples will be added as the module evolves. Contributions are welcome.

A/B paragraphs

Issues