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# image-size
[](https://circleci.com/gh/image-size/image-size)
[](https://www.npmjs.com/package/image-size)
[](http://npm-stat.com/charts.html?package=image-size&author=&from=&to=)
A [Node](https://nodejs.org/en/) module to get dimensions of any image file
## Supported formats
* BMP
* CUR
* DDS
* GIF
* ICNS
* ICO
* J2C
* JP2
* JPEG
* KTX
* PNG
* PNM (PAM, PBM, PFM, PGM, PPM)
* PSD
* SVG
* TGA
* TIFF
* WebP
## Programmatic Usage
```shell
npm install image-size --save
```
or
```shell
yarn add image-size
```
### Synchronous
```javascript
const sizeOf = require('image-size')
const dimensions = sizeOf('images/funny-cats.png')
console.log(dimensions.width, dimensions.height)
```
### Asynchronous
```javascript
const 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.
Also, the asynchronous functions have a default concurrency limit of **100**
To change this limit, you can call the `setConcurrency` function like this:
```javascript
const sizeOf = require('image-size')
sizeOf.setConcurrency(123456)
```
### Using promises (nodejs 10.x+)
```javascript
const { promisify } = require('util')
const sizeOf = promisify(require('image-size'))
sizeOf('images/funny-cats.png')
.then(dimensions => { console.log(dimensions.width, dimensions.height) })
.catch(err => console.error(err))
```
### Async/Await (Typescript & ES7)
```javascript
const { promisify } = require('util')
const sizeOf = promisify(require('image-size'))
(async () => {
try {
const dimensions = await sizeOf('images/funny-cats.png')
console.log(dimensions.width, dimensions.height)
} catch (err) {
console.error(err)
}
})().then(c => console.log(c))
```
### Multi-size
If the target file is an icon (.ico) or a cursor (.cur), the `width` and `height` will be the ones of the first found image.
An additional `images` array is available and returns the dimensions of all the available images
```javascript
const sizeOf = require('image-size')
const images = sizeOf('images/multi-size.ico').images
for (const dimensions of images) {
console.log(dimensions.width, dimensions.height)
}
```
### Using a URL
```javascript
const url = require('url')
const http = require('http')
const sizeOf = require('image-size')
const imgUrl = 'http://my-amazing-website.com/image.jpeg'
const options = url.parse(imgUrl)
http.get(options, function (response) {
const chunks = []
response.on('data', function (chunk) {
chunks.push(chunk)
}).on('end', function() {
const 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**
### Disabling certain image types
```javascript
const imageSize = require('image-size')
imageSize.disableTypes(['tiff', 'ico'])
```
### Disabling all file-system reads
```javascript
const imageSize = require('image-size')
imageSize.disableFS(true)
```
### JPEG image orientation
If the orientation is present in the JPEG EXIF metadata, it will be returned by the function. The orientation value is a [number between 1 and 8](https://exiftool.org/TagNames/EXIF.html#:~:text=0x0112,8%20=%20Rotate%20270%20CW) representing a type of orientation.
```javascript
const sizeOf = require('image-size')
const dimensions = sizeOf('images/photo.jpeg')
console.log(dimensions.orientation)
```
## Command-Line Usage (CLI)
```shell
npm install image-size --global
```
or
```shell
yarn global add image-size
```
followed by
```shell
image-size image1 [image2] [image3] ...
```
## Hosted API
We also provide a hosted API for image-size which may simplify your use case.
<a href="https://image-size.saasify.sh">
<img src="https://badges.saasify.sh?text=View%20Hosted%20API" height="40"/>
</a>
## 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)