JPEG to PNG using JavaScript
The JavaScript library for converting images to Portable Network Graphic (PNG) images.
JPEG to PNG features
The JS module for converting JPEG images to PNG files.
ConvertAPI JavaScript library install
ConvertAPI provides a JavaScript module that allows you to perform a JPEG to PNG conversion with just a few lines of code.
First, install the convertapi-js@~1.1
package from npm:
npm i convertapi-js@~1.1
If you are interested in our old version of non-module JavaScript library you can find it here.
Authenticate your JavaScript library
Next, obtain your secret key by signing up for a free account. Once you sign up, you'll receive 250 free conversions instantly! Grab your authentication secret from the account dashboard, and authenticate the ConvertAPI JavaScript library like this:
let convertApi = ConvertApi.auth('secret_or_token')
Convert JPEG to PNG using JavaScript in no time!
Once you have your authentication in place, simply copy-paste this jpeg to png conversion code snippet into your JavaScript project. Convert JPEG to PNG documents using JavaScript with no effort at all!
Try the conversion online - no coding required!
You can try out advanced conversion parameters and test the conversion result online using our interactive demo tool. This tool will produce the same conversion output as if you were using the library from your solution, and it will auto-generate the code snippet for you!
Try for FREE!Conversion parameters
Set output image resolution in dpi.
Scale the output image. If ScaleImage is False output document will be stripped to ImageHeight / ImageWidth, if ScalePage is True output document will be scaled to ImageHeight / ImageWidth.
Constrain proportions when scaling the output image.
Scaling only if the input image is larger than the output.
Image height in pixels.
Image width in pixels.
Specifies whether the image parser should use image interpolation. Enabling image interpolation will result in higher quality for scaled images at the expense of speed.
Add alpha channel to image, setting pixels matching color to transparent. Values accepted are RGBA, CMYK hex string, color name or RGB format like this 255,255,255 (RED=255, GREEN=255, BLUE=255) or 255,255,255,150 with alpha chanel.