SurveyJS vs. Knack

SurveyJS is a suite of pre-built, fully customizable JavaScript UI components for creating, rendering, and exporting online forms and surveys, as well as analyzing collected responses. With SurveyJS, you can build an in-house form management solution that easily integrates into your application - without the heavy development time and costs of starting from scratch. The SurveyJS product family includes: Survey Creator – A powerful, white-label drag-and-drop form builder that generates a JSON schema describing your form’s structure, layout, styling, and behavior.

Knack is an AI-powered no-code platform for building custom, database-driven applications, internal tools, and portals. Businesses use Knack to create systems that manage data, automate workflows, and support day-to-day operations, all in one place. The platform combines a built-in relational database, AI app builder, customizable forms, and workflow automation. Users can define their data model, create user roles, and control access with granular permissions. Applications can be deployed as internal tools or external portals, and embedded into existing websites.