@derivv/core
v0.1.0
Published
Save time and bandwidth by resizing images in the browser before uploading. Configure target sizes and options to fit your needs.
Downloads
4
Readme
Derivv - Resize images in the browser before uploading
Save time and bandwidth by resizing images in the browser before uploading. Configure target sizes and options to fit your needs.
Features
- Automatically resizes and crops images to the target size
- Create mulitiple sizes from a single image or multiple images in a single pass
- Optimizes images for faster uploads
- Retains aspect ratio if desired
Install
npm install @derivv/coreUsage
Simple usage with multiple files:
// index.js
import { resize } from "@derivv/core";
const TARGET_SIZES = [
{ width: 100, height: 100 },
{ width: 200, height: 200 },
{ width: 300 }, // Height will be calculated to maintain aspect ratio
{ height: 300 }, // Width will be calculated to maintain aspect ratio
{} // Image will only be compressed
];
const options = {
quality: 0.6, // default 0.7
// disableCrop: true, // default false
// cropCoordinates: { // set custom crop coordinates
// x: 0,
// y: 0,
// },
};
document.getElementById("file").addEventListener("change", async (e) => {
const { images, errors } = await resize(e.target.files, TARGET_SIZES, options);
images.forEach((image) => {
document.body.appendChild(`
<img src="${URL.createObjectURL(image)}" />
`);
});
errors.forEach(console.warn);
});<!-- index.html -->
<html>
<head>
<script src="index.js"></script>
</head>
<body>
<input type="file" id="file" multiple />
</body>
</html>