Knack is a no-code online database and custom application builder that lets ops teams, agencies, and SMB founders turn spreadsheets into full web apps with custom forms, dashboards, and access control. Marketed as a no-code database app builder for non-developers, Knack combines a visual database builder with custom field types, role-based user permissions, embeddable forms and views, automated email and webhook actions, payment processing, and integrations with Zapier and Make. Knack is a strong fit for nonprofits replacing Airtable plus separate forms with one tool, ops teams building internal CRUD apps, and consultants productizing recurring client deliverables as branded portals.