Description
The Caldera Forms addon enables rendering of Caldera forms on AMP pages generated by AMPforWP, converting fields into components compatible with the Accelerated Mobile Pages protocol. The integration keeps form validation, submission, and responses working within AMP restrictions, serving websites that rely on lead capture and contact in ultrafast mobile versions served by Google’s cache.
Key Features
- Native AMP rendering: displays Caldera Forms forms on AMP pages without breaking protocol validation.
- Automatic field conversion: adapts inputs, selects, and textareas to equivalent AMP components during page build.
- Asynchronous submission: processes form submission via AMP-compatible requests without reloading the page.
- Integrated response messages: displays success confirmations and error messages within the AMP layout after submission.
- Compatibility with Caldera builder: reuses forms already created in the Caldera Forms visual editor without reconstruction.
Caldera Forms Benefits
- Lead capture on AMP: allows keeping forms active even in the site’s accelerated versions.
- No rework: leverages existing Caldera forms, eliminating recreation for the AMP environment.
- Protocol compliance: avoids validation errors that would remove the page from Google’s AMP cache.
- Consistent experience: delivers the same submission flow across standard and accelerated mobile versions of the site.
Who Is It For?
- Content sites and blogs that serve AMP pages and rely on forms for lead capture.
- Companies that already use Caldera Forms and need to extend forms to AMPforWP.
- Editorial portals and digital magazines that maintain contact, newsletters, or surveys on accelerated versions.
Ideal for those who maintain AMPforWP on their site and want to continue using Caldera Forms as their primary form tool without losing functionality on AMP pages.
Frequently asked questions
Is AMPforWP Caldera Forms GPL-licensed?
Yes. AMPforWP Caldera Forms is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.
Can I use AMPforWP Caldera Forms on multiple sites?
Yes. You can install AMPforWP Caldera Forms on as many sites as you want. Only automatic updates through Ultrapack Auto Updater have a limit: from 3 to 80 sites, depending on the plan.
How much does AMPforWP Caldera Forms cost at Ultrapack?
AMPforWP Caldera Forms costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).
Does AMPforWP Caldera Forms include updates?
Yes. The current version of AMPforWP Caldera Forms is 1.2.6, published at Ultrapack on Feb 14, 2023. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).
Is AMPforWP Caldera Forms scanned before publication?
Yes. Every version of AMPforWP Caldera Forms goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.
What are the requirements for the plugin AMPforWP Caldera Forms?
Requires WordPress 3.0 or higher. Tested up to WordPress 5.5.1.
What changed in this version
Version 1.2.6 04 December 2020
- Bug Fixed: =
- Resolved the issue of Ajax Settings removed from Settings Panel.
Version 1.2.5 06 November 2020
- Feature Added
- Added "the field is required" message whenever the Fields are submitted empty.
- Bug Fixed: =
- Resolved the Fatal error: Uncaught Error: Call to undefined function ampforwp_is_amp_endpoint
Version 1.2.4 07 August 2020
- Feature Added: =
- Added support of Conditional Fields.
Version 1.2.3 06 March 2020
- Bug Fixed: =
- Resolved the issue of Forms not submitting from Google Cache CDN.
Version 1.2.2 08 February 2020
- Features Added: =
- Added Date field support.
- Added Phone Better field's Select Country option support.
- Added Star Rating field support.
- Range slider field alignment done.
- Removing the Caldera Form post Submission from Posts/pages.
Release notes published by the developer.
How to install
Automatic updates: this item is updated by the Ultrapack Auto Updater. With it installed, the new version shows up in your dashboard like any other WordPress update (how to set it up).
- Download the file
caldera-forms-for-amp.zip. - In the WordPress dashboard, go to Plugins > Add New > Upload Plugin.
- Select the file
caldera-forms-for-amp.zipand click Install Now. - Click Activate.
Requirements: Requires WordPress 3.0 or higher. Tested up to WordPress 5.5.1.
Stuck on a step? Open a ticket telling us which one you stopped at.

UAU Ready