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. Knack supports a wide range of use cases, including customer and vendor portals, custom CRMs, project and task management systems, inventory tracking, logistics and supply chain tools, membership and volunteer management, and government operations. Teams can start from scratch, from a template, or use AI to build fully custom applications tailored to their processes. Knack's healthcare-specific offering, Knack Health, allows organizations to build secure, HIPAA-compliant applications for patient intake, scheduling, care coordination, and operational workflows. The platform supports role-based permissions, record history logs, and secure data handling for protected health information (PHI), with a signed business associate agreement (BAA) available for covered entities. For more advanced use cases, developers can extend applications using a REST API, custom CSS, and JavaScript. Knack also supports integrations with 500+ third-party tools to fit into existing workflows. Knack is designed for flexibility and scale, making it a fit for SMBs, nonprofits, and enterprise teams that need systems tailored to how their business actually operates.