Welcome to SURFfilesender

SURFfilesender is a web based application that allows authenticated users to securely and easily send arbitrarily large files to other users. Users without an account can be sent a guest upload voucher by an authenticated user. SURFfilesender is developed to the requirements of the higher education and research community.

Should you have any questions on using SURFfilesender which are not answered already below, at www.surffilesender.nl/en or by your local IT support, you can contact support@surffilesender.nl.

File encryption

  • Encryption and decryption is done in the browser using a password to be chosen before uploading. A random password is suggested but this can be changed to a password or pass phrase of your own choice.
  • At no time the chosen password is sent to the server or the recipient by the FileSender service, it is only known to the uploader. The uploader needs to transfer this password to the recipient through a separate and safe channel, for example encrypted mail or by phone/text message.
  • At this moment Chrome, FireFox and IE 10 or higher are supported for both encrypted uploads and decrypted downloads.
  • It is not possible to resume a canceled upload when using encryption.
  • Maximum file size per upload when using encryption: 2 GB
  • Please note that the remainder of this help text describes the general functionality not specifically targeted at the use of encryption. The requirements and restrictions mentioned above have precedence over what is mentioned below when using encryption.

For guests

If you have been sent a guest voucher from this site you have been invited to upload files one or more times. The simplest way to do that is using the information contained in the invitation email. When uploading as guest, be sure to verify that any links in the guest invitation email are to a SURFSURFfilesender that is running on a research facility you trust. If you are not expecting a guest link from a facility you know then the email might not be legitimate.

The user who invited you to this system might have done so allowing you to upload files and get a link to allow other folks to download those files. If you can not get a link then you will have to provide email address(es) of the people who you wish to invite to download the uploaded files.

For authenticated users

If this installation of SURFfilesender is on your research facility the login button on the top right of the page should let you login using standard institutional account. If you are unsure about what login credentials to use to access this SURFfilesender then please contact your local IT support.

As an authenticated user you should be able to upload files one or more times and either have SURFfilesender email the recipients after your upload completes or provide you with a link to allow file download. You should also be able to invite other researchers to the system to upload one or more files as a guest.

Possible download size limitations

Any modern browser will download files of any size from the site. Nothing special is required for downloads.

Possible upload size limitations

If your browser supports HTML5 then you should be able to upload files of any size up to 1 TB. Current versions of Firefox and Chrome on Windows, Mac OS X and Linux are known to have HTML5 support.

Your browser's features

  • HTML5 upload enabled You can upload files of any size up to 1 TB p er transfer and you can resume uploads.
  • HTML5 upload disabled You can upload files of at most 2 GB each an d up to 1 TB per transfer.

Uploads of any size with HTML5

  • You'll be able to use this method if the HTML5
upload enabled sign is di splayed above
  • To enable this functionality simply use an up to date browser that supports HTML5, the latest version of the "language of the web".
  • Up to date versions of Firefox and Chrome on Windows, Mac OS X and Linux are known to work.
  • You can resume an interrupted or cancelled upload. To resume an upload, simply send the exact same files again ! Make sure the files have the same names and sizes as before. When your upload starts, you should notice the progress bar jump to where the upload was halted, and continue from there.

Uploads up to 2 GB per file without HTML5

  • SURFfilesender will warn you should you try to upload a file that is too big for this method.
  • Resuming uploads is not supported with this method.

Configured service constraints

  • Maximum number of recipients : 50 email addresses separated by a comma or s emi-colon
  • Maximum number of files per transfer : 30
  • Maximum size per transfer : 1 TB
  • Maximum file size per file for non-HTML5 browsers : 2 GB
  • Transfer expiry days : 14 (max. 21)
  • Guest expiry days : 20 (max. 60)

Technical details

  • SURFfilesender uses the FileSender software. SURFfilesender indicates whether or not the HTML5 upload method is supported for a particular browser. This depends mainly on the availability of advanced browser functionality, in particular the HTML5 FileAPI. Please use the "When can I use..." website to monitor implementation progress of the HTML5 FileAPI fo r all major browsers. In particular support for FileReader API and Blob URLs needs to be light green (=supported) for a browser to support uploads larger than 2 GB. Please note that although Opera 12 is listed to support the HTML5 FileAPI, it currently does not support all that is needed to support use of the HTML5 upload method in SURFfilesender.

For more information please visit https://www.filesender.org

Problems? Contact your institutional helpdesk.