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Uploading in the browser is the fastest way to add data to a project. For very large datasets or bulk and automated transfers, use the desktop app and CLI instead.

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Open the upload panel

Inside a project or collection, start an upload — or simply drag files or folders onto the page. The upload panel opens with your current collection shown as the Destination.
1

Click Upload

From a project or collection’s toolbar, click Upload.
Dataerai project toolbar with the Upload action

The project toolbar — Upload, New collection, and New asset.

2

Add files in the upload panel

The panel opens with your collection as the Destination. Pick files or a directory, or drag them onto the panel.
Dataerai browser upload panel with destination and file pickers

The upload panel — destination, transfer encryption, file and directory pickers, and drag-and-drop.

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Add your files

In the upload panel you can:
  • Select files to pick one or more files.
  • Select a directory to upload a whole folder.
  • Drag and drop files or folders directly onto the panel.
Each file you add appears in the Data list, where you can remove any you didn’t mean to include.
Dataerai upload Data list showing added files with sizes

Files you add show in the Data list with their size and a remove control.

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Choose upload options

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If available | Always | Never
default:"If available"
Whether to encrypt data in transit. Leave it on If available unless you have a specific reason to change it.
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text
Set the file extension manually if it wasn’t detected correctly.
Dataerai upload options — transfer encryption dropdown and file extension override

Transfer encryption (If available / Always / Never) and the optional file-extension override.

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One asset or a bundle

When you add more than one file, you choose how they’re stored:
  • Separate assets (default) — each file becomes its own asset.
  • Upload as bundle — all the files become a single asset with multiple files. Enable Upload as bundle and give the asset a title.
Dataerai upload 'Upload as bundle' toggle

Enable 'Upload as bundle' to store multiple files as one asset instead of separate assets.

In bundle mode, the extracted metadata preview attaches the metadata from the first file only. Upload separate assets if each file needs its own extracted metadata.

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Review extracted metadata

If Dataerai recognizes a file’s format, it shows a metadata preview with fields read from the file. Expand each file’s card to see the extracted fields in Structured, Tree, or JSON views, edit the values inline, and use the Attach to upload toggle to choose whether the metadata is saved with the asset. See Automatic metadata extraction.
Dataerai upload metadata preview for a recognized HDF5 file

A recognized file's metadata preview — extracted fields, the HDF5 type, Structured / Tree / JSON views, and an Attach toggle.

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Add tags and upload

Add any tags to apply to the upload, then click Upload. Progress is shown live for each file, and content is integrity-checked as it transfers. Browser uploads resume automatically — if a transfer is interrupted, it continues from where it stopped instead of starting over. The browser has no manual pause control; for pause and resume, use the desktop app or CLI. You can cancel an in-progress upload from the Transfer tracker.
Dataerai upload Tags field and Upload button

Add tags, then click Upload to start the transfer.

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Next steps

Automatic metadata extraction

How Dataerai reads structured metadata from instrument files.

Move large data

High-throughput, resumable transfers with the desktop app and CLI.

Organize into collections

Group your uploads and keep them findable.

Create a metadata-first asset

Make a record now and attach files later.