Form Handling in 2025: Why React 19 Triumphs Over Formik and Hook Form

Form handling in React has evolved significantly with the introduction of React 19, prompting the perennial question: should we continue relying on libraries like Formik or React Hook Form for our projects? In this battle of form strategies, we've gathered insights from several blog posts to highlight why React 19's built-in form actions, hooks, and states stand out as the superior approach for modern form handling as we march into 2025.

Actions Speak Louder than Words

With React 19,  one of the standout features is the introduction of Actions. These allow developers to handle data mutations in a more declarative manner than ever before. Kent C. Dodds emphasizes this shift, explaining how React now manages the pending states and errors automatically as part of its new form structure. This means that one of the most tedious parts of form handling—managing state transitions—is now streamlined, enhancing user experience.

import { useActionState } from "react";

async function increment(previousState, formData) {
  return previousState + 1;
}

function StatefulForm({}) {
  const [state, formAction] = useActionState(increment, 0);
  return (
    <form>
      {state}
      <button formAction={formAction}>Increment</button>
    </form>
  )
}

Why Formik May Not Cut It

While Formik was once a favorite for many developers, its limitations begin to surface under the weight of large forms, especially when performance is a concern. A Reddit user starkly pointed out the disasters of using Formik in large forms, noting that the rendering performance can drop drastically due to re-renders caused by each keystroke in a multi-field input. In contrast, React 19's useActionState and state management allow for granular updates without excessive re-rendering, giving it a performance edge.

Adaptive Optimism

React 19 introduces a novel way to manage optimistic updates through the useOptimistic hook. This pattern allows developers to reflect immediate UI changes in response to user interactions while awaiting server confirmation.

import { useOptimistic } from 'react';

function AppContainer() {
  const [optimisticState, addOptimistic] = useOptimistic(
    state,
    // updateFn
    (currentState, optimisticValue) => {
      // merge and return new state
      // with optimistic value
    }
  );
}

The Bottom Line: Embrace React 19

As we examine the capabilities and performance aspects of both Formik and React Hook Form against the backdrop of React 19, it's evident that React's built-in form action and state management features not only simplify the codebase significantly but also enhance performance and usability. Where libraries like Formik are struggling with maintenance and performance, React 19's new architecture promises modern solutions.

Whether the focus is on maintaining responsiveness or ensuring smooth interactions, React 19’s innovative approach positions it as the future of form handling, making it the go-to choice for developers in 2025 and beyond.