autosize-input-react

An auto-resizing input component for React, built on top of the original react-input-autosize package.

This version is rebuilt with modern tooling (TypeScript + Vite) and aims to be drop-in compatible for most use cases, while staying lightweight and dependency-free.

🔗 Original project: jedwatson/react-input-autosize

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Demo & Examples

To run the examples locally:

npm install
npm run dev

Then open http://localhost:5173 in your browser.

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Installation

Install from NPM:

npm install autosize-input-react

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Usage

import AutoSizeInput from "autosize-input-react";

<AutoSizeInput
  name="form-field-name"
  value={inputValue}
  onChange={(event) => {
    // event.target.value contains the new value
  }}
/>

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Gotchas / Notes

Custom Styles & Font Size

If your input uses a custom font size or other inline styles, pass them to inputStyle:

<AutoSizeInput
  value={value}
  inputStyle={{ fontSize: 36 }}
/>

Dynamic Styling

Styles are copied only on mount. If styles change later (e.g. from a theme switch), remount the component (change the key prop), or manually trigger recalculation (in future, support for copyInputStyles() may be added).

IE / Edge "clear" indicator (Legacy)

If you need to support older versions of IE or Edge, pass injectStyles={false} and add the following CSS rule yourself:

input::-ms-clear {
  display: none;
}

Controlled Input

This is a controlled component. It expects a value prop and will not work as an uncontrolled input.

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Why this fork?

This version of the component is:

• Built with TypeScript
• Bundled using Vite for ESM, CJS, and UMD support
• Smaller and more tree-shakable
• Actively maintained for modern React projects

We appreciate the original work by Jed Watson and this version builds upon that foundation.

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License

MIT License © Nishant Bhandari Based on original work © Jed Watson