File Thingie support uploading of multiple files at once. You accomplish this by selecting the files you want to upload one by one.

Select a file as in a normal file upload. After you have chosen a file it is automatically added to a list of files ready for upload. When your file is listed you can then use the same file upload widget to select another file.

When you have selected all the files you wish to upload click the 'upload' button to start the upload. This may take a while if you have many files to upload.

Files will be uploaded to the current directory.