Simple file uploading application

npm install dropdot
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Dropdot is a simple file uploader built on NodeJS, Express and Amazon S3 as the object storage platform.

Configuring Dropdot is simple, just follow the steps below:

Demo: http://dropdot.alfg.co/


Clone and install dependencies

$ git clone https://github.com/alfg/dropdot.git
$ cd dropdot
$ npm install

Open config.js.sample and configure

module.exports.port = 3000; // App port
module.exports.aws_key = "YourAWSKey"; // AWS Key
module.exports.aws_secret = "YourSuperSecretAWSKey"; // AWS Secret
module.exports.aws_bucket = "NameOfS3Bucket"; // S3 bucket
module.exports.redirect_host = "http://localhost:3000/"; // Redirect page after successful upload
module.exports.bucket_dir = "uploads/"; // Subdirectory in S3 bucket where uploads will go
module.exports.max_filesize = 20971520; // Max filesize in bytes (default 20MB)

Rename config.js.sample to config.js and run the app

$ mv config.js.sample config.js
$ node app.js

Load http://localhost:3000 into the browser

The app is set, now you need to create and configure your S3 Bucket.

Configuring your S3 Bucket

In order to allow S3 to accept CORS uploads from your app, it needs to be properly configured.

Log into your S3 Console and create a bucket.

Right-click your bucket and go to properties > permissions > Edit CORS Configuration.

Enter the following:


Of course, the * in AllowedOrigin is only for development. Be sure to use your domain when going public.

That's it!

All done! Now go upload stuff.


Dropdot is open-source under the MIT License.


Dropdot uses the following technologies, check them out!

  • NodeJS The core backend
  • Express Framework for Node. Serves the JSON policy
  • mime Mime-type detection
  • crypto Used for SHA1, Base64 digestion
  • uuid Generating the unique IDs
  • Foundation CSS Framework
  • Amazon S3 Cloud Object/File Storage Platform

Guides that saved me a few gray hairs dealing with CORS:

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