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High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images
The sharp npm package is a high-performance Node.js module for resizing, converting, and manipulating images. It is built around the libvips image processing library, which allows it to handle large images and perform operations quickly and with a low memory footprint.
Image Resizing
Resizes an image to the specified width and height.
sharp('input.jpg').resize(300, 200).toFile('output.jpg', (err, info) => {});
Format Conversion
Converts an image from one format to another, such as JPEG to PNG.
sharp('input.jpg').toFormat('png').toBuffer().then(data => {});
Image Rotation
Rotates an image by a specified degree.
sharp('input.jpg').rotate(90).toBuffer().then(data => {});
Extracting Image Regions
Extracts a region of the image starting at the left and top offsets and with the specified width and height.
sharp('input.jpg').extract({ left: 100, top: 100, width: 300, height: 200 }).toFile('output.jpg', (err, info) => {});
Image Overlay
Overlays an image on top of another using composition.
sharp('input.jpg').composite([{ input: 'overlay.png', gravity: 'southeast' }]).toFile('output.jpg', (err, info) => {});
Adjusting Image Quality
Adjusts the quality of an image, useful for optimizing the file size.
sharp('input.jpg').jpeg({ quality: 80 }).toBuffer().then(data => {});
ImageMagick is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats. It is more comprehensive than sharp but can be slower and more memory-intensive.
An image processing library for Node written entirely in JavaScript, with zero native dependencies. Jimp is more accessible due to its pure JavaScript nature but generally performs slower than sharp.
GraphicsMagick for node.js, which is an image processing library that is a fork of ImageMagick. It is similar to ImageMagick in functionality and also provides a comprehensive set of image manipulation features but may not be as fast as sharp.
The typical use case for this high speed Node-API module is to convert large images in common formats to smaller, web-friendly JPEG, PNG, WebP, GIF and AVIF images of varying dimensions.
It can be used with all JavaScript runtimes that provide support for Node-API v9, including Node.js (^18.17.0 or >= 20.3.0), Deno and Bun.
Resizing an image is typically 4x-5x faster than using the quickest ImageMagick and GraphicsMagick settings due to its use of libvips.
Colour spaces, embedded ICC profiles and alpha transparency channels are all handled correctly. Lanczos resampling ensures quality is not sacrificed for speed.
As well as image resizing, operations such as rotation, extraction, compositing and gamma correction are available.
Most modern macOS, Windows and Linux systems do not require any additional install or runtime dependencies.
Visit sharp.pixelplumbing.com for complete installation instructions, API documentation, benchmark tests and changelog.
npm install sharp
const sharp = require('sharp');
sharp(inputBuffer)
.resize(320, 240)
.toFile('output.webp', (err, info) => { ... });
sharp('input.jpg')
.rotate()
.resize(200)
.jpeg({ mozjpeg: true })
.toBuffer()
.then( data => { ... })
.catch( err => { ... });
const semiTransparentRedPng = await sharp({
create: {
width: 48,
height: 48,
channels: 4,
background: { r: 255, g: 0, b: 0, alpha: 0.5 }
}
})
.png()
.toBuffer();
const roundedCorners = Buffer.from(
'<svg><rect x="0" y="0" width="200" height="200" rx="50" ry="50"/></svg>'
);
const roundedCornerResizer =
sharp()
.resize(200, 200)
.composite([{
input: roundedCorners,
blend: 'dest-in'
}])
.png();
readableStream
.pipe(roundedCornerResizer)
.pipe(writableStream);
A guide for contributors covers reporting bugs, requesting features and submitting code changes.
Copyright 2013 Lovell Fuller and others.
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
FAQs
High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, GIF, AVIF and TIFF images
The npm package sharp receives a total of 5,192,997 weekly downloads. As such, sharp popularity was classified as popular.
We found that sharp demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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