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Upload a dataset

This section will guide you how to upload data to CryoCloud - either via our web-application, sftp or using the CryoCloud Uploader.

We recommend using the CryoCloud Uploader, in short CC Up, for the fastest and most convenient upload experience.

Dataset Upload via CC Up

The CryoCloud Uploader (CC Up) is a standalone application that allows for the fastest and most stable upload from any system. You can Download CC Up on the bottom left after logging in to


Please note that these are beta versions that are not signed yet with the Windows & Mac stores. After downloading the software, please click "Run anyway" for windows during the installation process to complete the installation. For Mac OS run the following command after moving the app to Applications: xattr -d /Applications/CryoCloud\

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After completing the installation, running CC Up will open your web browser and it will automatically connect with the web-app.

To create a new dataset, follow the following steps:

  1. Go to the Datasets view
  2. Click the "+" on the top left and specify a dataset name, type & file format (e.g. movies & .tiff).

To upload data, follow the following steps:

  1. Open the dataset entry.
  2. Clicking "Edit dataset" on the top right
  3. Specify your optics in the top
  4. Upload files via the bottom section.
  5. Use the toggle "skip existing files" if you want to add data to an existing dataset, and uncheck "check file type if you want to upload additional data other than the dataset file type (e.g. gain references, see below).

A star file containing all movies will be automatically generated after your upload of data is finished.

To link a gain reference to the dataset:

  1. If you uploaded a gain reference for the dataset, make sure to link it by selecting it in the gain reference field.
  2. If you have a .mrc gain reference and a different dataset type (e.g. .tiff dataset format), untoggle "Check file type" to upload it and link it.

Linked gain references will automatically be pre-filled if you set up a motioncor job for the dataset.

Dataset Upload via web application

We recommend files uploads via the web application for individual files and small datasets up to 100GB. Click on the **Dataset** tab on the left, and then +New dataset on the top right. Specify dataset name, dataset type (e.g. movies or aligned frames) and file format (.tif(f), .mrc)

Follow the same steps as for CC'Up to upload data, edit parameters or link gain references.


Snapshots keep track of your starfile versions, this is handy if you want to add more files or change some of the parameters later on, e.g. if you made a mistake.

Dataset upload via sftp

If you prefer uploading large amounts of data via the commandline using sftp, please contact us. We can set up a sftp server for you and provide you with the credentials for data upload.