antd component library — it’s a code-first, component-based approach that works naturally if your entire UI is Ant Design. FormEngine is a JSON-driven runtime that works with any component library, including Ant Design, and adds runtime schema loading, declarative conditional logic, and an embeddable visual designer. If your team is fully committed to antd and your forms change on a developer cadence, Ant Design Form is the natural choice. If you need form schemas to live outside the codebase, change without a redeploy, or be edited by non-developers, FormEngine adds those capabilities.
Last reviewed: April 2026.
Architecture difference
Ant Design Form (antd Form, built on rc-field-form) is component-based: you define your form by composing <Form>, <Form.Item>, and field components in JSX. Validation rules are passed as props, nested lists use <Form.List>, and async validation is supported. The form state is managed internally, with Form.useForm() providing imperative access. Everything is code-first — there is no JSON layer, no runtime loading, and no separation between form structure and form rendering.
FormEngine separates the form schema from the renderer. The JSON schema describes what fields exist, how they’re validated, what logic they have, and how they react to user input. FormViewer renders that schema using a component adapter. You can write an Ant Design adapter and use Ant Design components inside FormEngine — meaning you don’t have to abandon antd when adopting FormEngine. The key difference is where the form definition lives: in JSX and TypeScript (Ant Design Form) vs. in a portable JSON object (FormEngine).
Feature comparison
| Feature | Ant Design Form | FormEngine |
|---|---|---|
| Form definition | JSX / component composition | JSON schema |
| Runtime schema loading (from API/DB) | No | Native |
| Ant Design component support | Native | Via custom adapter |
| MUI / Mantine support | Not applicable | Native adapters |
| Visual form editor for non-developers | No | FormEngine Designer |
| Conditional field visibility | Imperative (watched fields, dependencies) | Declarative (renderWhen) |
| Computed property values | Imperative (Form.useWatch) | Declarative in schema |
| Nested / repeatable field lists | Yes (Form.List) | Yes (Repeater component) |
| Async validation | Yes | Yes |
| Cross-field validation | Yes (dependencies) | Yes |
| Localization | Manual | Built-in |
| TypeScript support | Yes | Yes |
| License | MIT (antd) | MIT (Core); commercial (Designer) |
| Bundle size with antd | antd already loaded, Form is a small addition | ~245 KB default (login form); ~190 KB with MUI |
| Active development | Yes | Yes |
Bundle size note
Ant Design Form is part ofantd — if you’re already using antd, the Form component adds very little to your bundle because you’re loading the antd base already. FormEngine’s default bundle is larger than antd Form alone. However, if you’re not already on antd and you’re choosing a UI library from scratch, FormEngine with MUI or Mantine lets you use one of the larger ecosystems without antd lock-in.
When Ant Design Form is the right choice
- Your entire UI stack is Ant Design and you have no plans to change
- Forms are code-owned and change on a developer cadence
- You don’t need visual authoring or runtime schema loading
- Your team is familiar with the
antdForm API and it handles your requirements
When FormEngine is stronger
- Forms need to be loaded at runtime from a database, API, or CMS
- Non-developer teams (product, ops) need to create or edit forms without a code change
- You need portable form schemas that work across multiple products or services
- You want declarative conditional logic and computed properties in the schema
- You need to support multiple UI component libraries (MUI, Mantine) — not just Ant Design
- You need an embeddable visual form builder as part of your product
Migration playbook
Ant Design Form and FormEngine use different paradigms — migration is a rewrite of form definitions, not a component swap. Incremental adoption is the practical approach:- Keep existing Ant Design Form implementations unchanged.
- For new forms that need runtime loading or visual authoring, build them in FormEngine Core.
- If you want to continue using Ant Design components inside FormEngine, build or find an Ant Design view adapter.
- Move validation rules to FormEngine’s Validation system — async and custom rules are supported.
- Add FormEngine Designer where form creation by non-developers would reduce development cycle time.
FAQ
Can FormEngine use Ant Design components?
FormEngine’s UI layer is pluggable viaview adapters. A custom adapter can map FormEngine component types to Ant Design components. There isn’t an official @react-form-builder/components-antd package at the time of writing, but the adapter pattern is documented in Custom Components.
Does FormEngine compete with antd as a UI library?
No. FormEngine is a form runtime, not a UI component library. It depends on an external UI library to render. You can use it alongside antd, or with MUI, Mantine, or your own design system.Why would a team on antd consider FormEngine?
Usually because forms have grown beyond what code-first management supports — schema stored in a database, frequent changes needed by non-developers, or form definitions that need to be shared across multiple products or services.Is the Ant Design Form API compatible with FormEngine?
No. Ant Design Form uses the<Form> / <Form.Item> component API. FormEngine uses its own JSON schema. There’s no adapter that translates one to the other.
Can both coexist in the same application?
Yes. Many teams use antd’s Form component for simple, stable forms and FormEngine for forms that need runtime flexibility or visual authoring.See also
- Customer onboarding forms — plan-tiered onboarding, dynamic dropdowns, CRM pre-fill
- Workflow approval forms — role-based fields, conditional routing, schema versioning
- Core vs Designer: pricing and licensing — what’s free and what’s commercial
- Best React form libraries 2026 — full landscape comparison
- GitHub repository
- Designer pricing