There are many developers actively busy creating add-ons (extensions) for Gravity Forms. The most trustworthy ones joined the Gravity Forms Certified Partners program: JetSloth, Gravity Flow, GFChart, Gravity Wiz, GravityPDF, ForGravity and GravityView. Besides that there are some other small business involved, like Gravity+, GravityExtra, several developers on Envato (CodeCanyon) and of course on the WordPress Plugin repository.
Here we list our most favorite developers for Gravity Forms extensions and perks. Add-ons from these developers we use on daily basis inside our own client projects.
JetSloth

JetSloth develops add-ons for Gravity Forms, like a Color Picker field, Collapsible Sections, Bulk Add Fields, Image Choices, Gravity Forms Tooltips and Bulk Actions.
Gravity Wiz (Perks)

Gravity Perks by Gravity Wiz LLC provides you with extra, very handy options and functionalities for your Gravity Forms. Perks like Read only fields, minimum or/and maximum amount of words, copying values from one field to another, limiting checkboxes, choices, etc. There are almost 30 useful extensions of the Gravity Forms plugin available now.
GravityWP

And last but not least! We also develop our own Add-ons for Gravity Forms. When clients have requests and there is no appropriate Add-on available, we pick up the gauntlet ourself.
Our Premium add-ons for Gravity Forms
API Connector
Connect Gravity Forms to External API's: Query the API using form field values and automatically fill other form fields with the API response.
Entry to Database
Integrates Gravity Forms with internal or external databases, offering flexible mapping of form fields to database columns and real-time synchronization between entries and database rows.
List Number Format
With this Gravity Forms Add-on you can change List Field columns into a number field, do calculations within a row or column. Extra merge tags are available with total counts of columns.
DateTime Field
The GravityWP - DateTime Field add-on adds a dedicated Date/Time field to Gravity Forms so users can enter both a date and a time in a single input.
Read tutorials about
How to Validate Repeatable Contact Rows in Gravity Forms
Learn how to validate repeatable Gravity Forms List field rows with GravityWP List Text. This tutorial shows how to add email and regex validation, test invalid values, and confirm that valid team roster data is stored correctly.
Gravity Forms Airtable Integration: Create Records From Form Submissions
Learn how to build a Gravity Forms Airtable integration with GravityWP API Connector. Send form submissions to Airtable, create new records automatically, and save the returned Airtable Record ID and response back to Gravity Forms.
Gravity Forms Asana Integration: Create Tasks From Form Submissions
Learn how to connect Gravity Forms to Asana with GravityWP API Connector. This tested workflow creates Asana tasks from form submissions and saves the returned task ID and URL back to Gravity Forms.
Gravity Forms Google Calendar Integration: Create Events From Form Submissions
Connect Gravity Forms to Google Calendar with GravityWP API Connector. Learn how to create calendar events from form submissions, map event details, configure OAuth 2.0, handle time zones, and save the returned Event ID and URL.
