1
WPForms Included
Large set of documented actions and filters in developer docs.
100feature score
WordPress Form Builder Plugins with Developer hooks & API
Actions, filters and/or REST API for custom work. 13 of the 13 plugins we track include it.
2
Fluent Forms Included
Documented action/filter hooks and REST API for developers.
99feature score
3
Gravity Forms Included
Open REST API plus a large set of documented actions and filters.
94feature score
4
Formidable Forms Included
Hooks and filters free; REST API add-on needs Business.
98feature score
5
SureForms Included
Documented developer actions and filters (srfm_* hooks).
96feature score
6
Forminator Included
Documented filters/actions and a developer API.
92feature score
7
Everest Forms Included
Open-source code exposes WordPress actions/filters; formal developer docs are limited.
96feature score
8
Ninja Forms Included
Extensive actions/filters, WP-CLI and Abilities API support.
93feature score
9
WS Form Included
Documented action and filter hooks for developers.
92feature score
10
JetFormBuilder Included
Call Hook action, developer filters and an admin-only REST API.
85feature score
11
MetForm Paid version Agency
REST API access for submissions is limited to the Agency plan.
79feature score
12
Quform Included
30+ documented PHP hooks such as quform_pre_process.
55feature score
13
Contact Form 7 Included
Actions, filters, DOM events and REST endpoints for developers.
40feature score