Tools: Building Type-safe Dynamic Forms With Angular Signal Forms 2026

Posted on Feb 3

• Originally published at itnext.io

Angular 21 introduced Signal Forms — an experimental API that brings signals to form management. The form() function wraps a WritableSignal model, making your data the single source of truth. Validation, state tracking, field binding - all reactive, all signal-based.

Signal Forms provide a solid reactive foundation, but they’re low-level. You still write templates for each field, wire up validation manually, and handle conditional visibility yourself.

ng-forge Dynamic Forms builds on Signal Forms and adds configuration-driven form generation. One typed configuration defines everything: fields, validation, conditionals, computed values, multi-page flows. The framework wires this together so you don’t need custom glue code.

Signal Forms are great when you want full control — custom templates, bespoke validation UI, one-off forms that don’t follow patterns. Use them directly when you need maximum flexibility.

You’re building multiple forms with similar structure

You want consistent validation, layout, and error handling without repeating yourself

Your forms have conditional logic, computed fields, or multi-page flows

You want type inference for both config authoring and form output

You’re integrating with a component library (Material, Bootstrap, PrimeNG, Ionic)

Source: Dev.to