Hooks
Actions
Learn about the different action hooks available within Gravity Forms. Action hooks allow you to perform additional actions when an event takes place.
Filters
Discover the different filter hooks available within Gravity Forms. You can use filters to modify data to better match your particular needs.
JavaScript
Find explanations of the various JavaScript hooks used by Gravity Forms and its add-ons.
Deprecated
Here you will find a listing of the action hooks in Gravity Forms which have been deprecated.
Articles
gform/ajax/post_page_change
The gform/ajax/post_page_change event allows developers to to execute custom JavaScript logic after a form submission is processed via AJAX.
gform/conditionalLogic/applyRules/end
The gform/conditionalLogic/applyRules/end event allows you to react after conditional logic is applied. Use it to trigger animations, restore inputs, or handle field visibility updates in conversational forms.
gform/conditionalLogic/applyRules/start
The gform/conditionalLogic/applyRules/start event allows you to run custom logic right before conditional rules are applied. It’s useful for prepping UI changes, showing loaders, or managing field state in conversational forms.
gform/gfcf/hide_conditions
This gform/gfcf/hide_conditions filter allows developers to add custom visibility rules for fields in conversational forms.
gform/gfcf/visibility_field_classes
The gform/gfcf/visibility_field_classes filter allows customization of which field CSS classes should be monitored for visibility changes. The field observer system uses it to watch for changes to the style.display property of fields.
gform/post_init
This event is intended for use by add-ons that depend on core scripts. It fires once per form and provides the form ID as a parameter.
gform/post_render
The gform/post_render event can be used to initialize scripts when a form loads. It is a direct replacement for gform_post_render.
gform/products/product_field_changed
This JavaScript event is triggered when any price changes.
gform/submission/pre_submission
The gform/submission/pre_submission filter should be used to perform custom actions between a form button (e.g. submit, next, previous) being clicked and the request being posted to the server.
gform/theme/scripts_loaded
The gform/theme/scripts_loaded event can be used to initialize scripts that depend on Gravity Forms front-end form scripts, including the JavaScript gform object.