cropper.js is an image uploading and cropping tool that can easily be added to your website.
The current version supports cropping and automatic resizing to a given value, as well as exporting the result.
The aspect ratio of the crop is fixed and files with a side longer than options.limit are resized on upload.
This project is open source and still under development, so any additions or changes are welcome. Just submit a pull request and I will take a look at your contribution!
The library is written in ECMAScript 6, so make sure that target browsers support it, or use Babel for backwards-compatibility.
The documentation has examples on how to use the Uploader and Cropper classes provided, as well as a description of the few functions they need.
An example webpage can be seen here: https://www.billy-brown.net/cropper.js/
You can experiment with the code over on Codepen.
The example.html page contains a basic image cropper.
This project is licensed under The MIT License (MIT).
See accompanying LICENSE file.