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get dimensions of any image file


A Node module to get dimensions of any image file

  • BMP
  • GIF
  • JPEG
  • PNG
  • PSD
  • TIFF
  • WebP
  • SVG
  • SWF
npm install image-size --save
var sizeOf = require('image-size');
var dimensions = sizeOf('images/funny-cats.png');
console.log(dimensions.width, dimensions.height);
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.

var url = require('url');
var http = require('http');
var sizeOf = require('image-size');
var imgUrl = '';
var options = url.parse(imgUrl);
http.get(options, function (response) {
  var chunks = [];
  response.on('data', function (chunk) {
  }).on('end', function() {
    var buffer = Buffer.concat(chunks);

You can optionally check the buffer lengths & stop downloading the image after a few kilobytes. You don't need to download the entire image

npm install image-size --global
image-size image1 [image2] [image3] ...

not a direct port, but an attempt to have something like dabble's imagesize as a node module.