focus-lock is a framework-agnostic library, meaning it can be used with any web application regardless of the framework or library being used. This makes it highly versatile and suitable for both vanilla JavaScript projects and those built with frameworks like React, Vue, or Angular.

react-focus-lock is specifically designed for React applications. It leverages React's component model to manage focus, making it easy to integrate into any React project. Its API is tailored for React, which may limit its use in non-React environments but provides a more seamless experience for React developers.

react-focus-trap is also a React-specific library, providing a more comprehensive solution for managing focus within React components. It offers more features and flexibility compared to react-focus-lock, making it suitable for complex React applications that require detailed control over focus behavior.

focus-lock is easy to integrate into any web application. Its simple API and minimal setup requirements allow developers to quickly implement focus trapping without significant changes to their existing codebase.

react-focus-lock offers straightforward integration for React developers. Its component-based approach allows for quick implementation within React components, and its documentation provides clear guidance on how to use it effectively.

react-focus-trap provides detailed documentation and examples, making it easy for developers to understand and implement its features. However, its more complex API may require a bit more time to fully grasp, especially for those new to focus management.

focus-lock provides basic customization options, such as specifying which elements can receive focus and defining callbacks for when focus is locked or released. However, it is relatively simple and does not offer extensive customization features.

react-focus-lock allows for some customization, such as defining which elements should be focusable and providing callbacks for focus events. It is designed to be flexible while maintaining a straightforward API that is easy to use.

react-focus-trap offers the most customization and flexibility among the three. It allows developers to define complex focus trapping behaviors, including nested traps, custom focus handling, and more. This makes it the best choice for applications that require detailed control over how focus is managed.

focus-lock is designed with accessibility in mind, ensuring that focus is managed in a way that is friendly to keyboard users and assistive technologies. However, it does not provide extensive built-in features for managing accessibility beyond basic focus trapping.

react-focus-lock prioritizes accessibility by ensuring that focus is trapped within the designated area, preventing focus from escaping and helping users navigate more easily. It follows ARIA guidelines and is designed to work well with screen readers and keyboard navigation.

react-focus-trap also focuses on accessibility, providing features that ensure compliant focus management. It includes support for ARIA attributes and allows developers to implement accessible focus trapping that works seamlessly with assistive technologies.

Basic usage of focus-lock

<div id="modal" role="dialog" aria-modal="true">
  <h2>Modal Title</h2>
  <input type="text" placeholder="First Name" />
  <input type="text" placeholder="Last Name" />
  <button id="close">Close</button>
</div>

<script src="https://unpkg.com/focus-lock/dist/focus-lock.umd.js"></script>
<script>
  const modal = document.getElementById('modal');
  const closeButton = document.getElementById('close');

  // Lock focus within the modal
  focusLock(modal);

  closeButton.addEventListener('click', () => {
    // Unlock focus when closing the modal
    focusLock.unlock();
    modal.style.display = 'none';
  });
</script>

Basic usage of react-focus-lock

import React from 'react';
import FocusLock from 'react-focus-lock';

function Modal() {
  return (
    <FocusLock>
      <div role="dialog" aria-modal="true">
        <h2>Modal Title</h2>
        <input type="text" placeholder="First Name" />
        <input type="text" placeholder="Last Name" />
        <button>Close</button>
      </div>
    </FocusLock>
  );
}

export default Modal;

Basic usage of react-focus-trap

import React from 'react';
import FocusTrap from 'react-focus-trap';

function Modal() {
  return (
    <FocusTrap>
      <div role="dialog" aria-modal="true">
        <h2>Modal Title</h2>
        <input type="text" placeholder="First Name" />
        <input type="text" placeholder="Last Name" />
        <button>Close</button>
      </div>
    </FocusTrap>
  );
}

export default Modal;