Copy data between Dropbox and OneDrive, small local drive
<p>I am aware that this may not be the best community to ask this question - if this is the case, please point me to the right direction.</p>

<p>I have some 300GB data stored in Dropbox cloud (various files, usually around 1-50 MB in size). I need to copy the data onto my OneDrive.</p>

<p>My local drive is only 128GB, 90GB available.</p>

<p>How to copy my Dropbox files across to OneDrive? I would like to avoid attaching external drives to the local machine. Also, I'd like this process to be as cost-effective as possible.</p>