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# image-size [](https://www.npmjs.com/package/image-size) [](https://travis-ci.org/image-size/image-size) [](http://npm-stat.com/charts.html?package=image-size&author=&from=&to=) [](https://coveralls.io/github/image-size/image-size?branch=master) [](https://david-dm.org/image-size/image-size#info=devDependencies) A [Node](https://nodejs.org/en/) module to get dimensions of any image file ## Supported formats * BMP * GIF * JPEG * PNG * PSD * TIFF * WebP * SVG * DDS ### Upcoming * SWF ## Programmatic Usage ``` npm install image-size --save ``` ### Synchronous ```javascript var sizeOf = require('image-size'); var dimensions = sizeOf('images/funny-cats.png'); console.log(dimensions.width, dimensions.height); ``` ### Asynchronous ```javascript var sizeOf = require('image-size'); sizeOf('images/funny-cats.png', function (err, dimensions) { console.log(dimensions.width, dimensions.height); }); ``` NOTE: The asynchronous version doesn't work if the input is a Buffer. Use synchronous version instead. ### Using a URL ```javascript var url = require('url'); var http = require('http'); var sizeOf = require('image-size'); var imgUrl = 'http://my-amazing-website.com/image.jpeg'; var options = url.parse(imgUrl); http.get(options, function (response) { var chunks = []; response.on('data', function (chunk) { chunks.push(chunk); }).on('end', function() { var buffer = Buffer.concat(chunks); console.log(sizeOf(buffer)); }); }); ``` You can optionally check the buffer lengths & stop downloading the image after a few kilobytes. **You don't need to download the entire image** ## Command-Line Usage (CLI) ``` npm install image-size --global image-size image1 [image2] [image3] ... ``` ## Credits not a direct port, but an attempt to have something like [dabble's imagesize](https://github.com/dabble/imagesize/blob/master/lib/image_size.rb) as a node module. ## [Contributors](Contributors.md)