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USB beta Web UI

reMarkable has provided a beta web UI that needs to be turned on to access.

Enabling the service

The service can be turned on from the settings page:

  • rM icon at the top left of the home page on the device
    • Storage
    • Enable USB web interface (Beta) - toggle the switch on the right (the IP address is obscured by the text).

Accessing files via a web browser

If you don't want to use the app for syncing files to your reMarkable, you can upload and download files via the beta USB web UI.

  • Open the page in your browser.
  • To upload, drag a file from your file explorer into the center section of the page and it will upload (it isn't quick and there is not much feedback as to progress).
    • The upload function doesn't seem to pay any attention to what folder you have browsed to in the UI and will always upload to the top “My Files” section on the reMarkable
    • The icon on the top right is a download icon, not an upload icon as described incorrectly in their recent tips & tricks document. I have not found an upload icon.
  • To download a file:
    • browse the folders to find it
    • select it (it goes white on black)
    • click the download icon in the top right.

Accessing files via curl

If you have curl available (or wget or similar), you can upload and download files via the command line.


chronos@localhost ~/Downloads $ curl '' -H 'Origin:' -H 'Accept: */*' -H 'Referer:' -H 'Connection: keep-alive' -F "file=@Get_started_with_reMarkable.pdf;filename=Get_started_with_reMarkable.pdf;type=application/pdf" 
Upload successfull
chronos@localhost ~/Downloads $


To download is a little more complex as you need to find the internal UUID (long hyphenated string of letters and numbers) that the reMarkable internally uses to refer to the file you want. You can see this UUID when you browse the Web UI if you select a file and then hover over the download icon and look at the URL it links to (something like The other way to get the UUIDs is to look in the filesystem on the device if you have access.

Once you have the UUID, you can get the filename associated using:

chronos@localhost ~/Downloads $ curl -I
HTTP/1.1 200 OK
Content-Disposition: attachment; filename='Get_started_with_reMarkable.pdf'
Content-Length: 4444023
Content-Type: application/pdf
Transfer-Encoding: chunked 

Unfortunately, the built in webservice is not smart, and so getting the HEAD data like this takes just as long as getting the whole file. I believe this is because it has to allow for those files where it has to render the lines into the file to get the final file size (Content-Length).

You can download the file using:

chronos@localhost ~/Downloads $ curl -o 'Get_started_with_reMarkable.pdf'
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 4339k  100 4339k    0     0  57914      0  0:01:16  0:01:16 --:--:--  924k
tech/webinterface.txt · Last modified: 2018/02/16 16:33 (external edit)