Is there a size limit on files uploaded to Dropbox, Amazon S3, etc?

Yes, the file size limits are as follows:

  • Dropbox – 20 GB;
  • Google Drive – 5 TB;
  • Amazon S3 – 5 TB;
  • Microsoft OneDrive – 10 GB;
  • OpenStack Swift – 5 GB;
  • WebDAV servers – depends on the server settings (usually 50 MB);
  • FTP and SFTP servers – depends on the server settings.