Filestack vs Uppy: What are the differences?

Filestack: Easy, Powerful File Uploads. Filepicker helps developers connect to their users' content. Connect, Store, and Process any file from anywhere on the Internet; Uppy: The next open source file uploader for web browsers. Uppy is a sleek modular file uploader for web browsers. Add it to your app with one line of code, or build a custom version with just the plugins you need via Webpack/Browserify. 100% open source, backed by a company (Transloadit).

Filestack and Uppy belong to "File Uploads" category of the tech stack.

Some of the features offered by Filestack are:

• Connect your app to everything from Dropbox to Gmail in just 2 lines of code and let Filepicker.io handle the mess of uploading files - we give you a clean, short URL that is easy to store and read from.
• Your files are stored in your existing S3 bucket. We handle all the complicated javascript and backend APIs to give you a clean and elegant way of saving files directly to your S3 bucket.
• To make it even easier to work with user content, we enable image post-processing. This way, regardless of what type of file a user uploads from the Cloud or their local device, you can be sure it's in exactly the right size. To convert an image, take the filepicker url and append /convert, along with query parameters specifying what you want to change.

On the other hand, Uppy provides the following key features:

• React (Native) support (planned)
• ES6
• Modular setup

Uppy is an open source tool with 20.2K GitHub stars and 978 GitHub forks. Here's a link to Uppy's open source repository on GitHub.