Upscale Images in Javascript
Open source, browser/Node compatibility, and completely free to use under the MIT license.
npm install upscaler 
Scales to 2x, 3x, and 4x
Scale images up to 4x their original size, all in Javascript.
Models included
UpscalerJS ships with pretrained models in the box covering a wide variety of use cases. Or bring your own!
Platform Support
Browser, Node (CPU and GPU-accelerated), and Service Worker environments all supported.
Images First
Supports inputs in a wide variety of formats - URL, HTMLImageElement, and more, and by default exports a base64 upscaled string.
ESM, CJS, and UMD
Pick your Javascript flavor! UpscalerJS ships with ESM and UMD (browser) and ESM and CJS (Node).
Extensive Documentation
Close to 100% test coverage, Typescript support, examples covering a wide variety of use cases, and thick documentation.
Guides
You can play with UpscalerJS right in the browser. Check out the examples to get started: