Step 1. Click the button below to download the YouTube Channel Downloader and follow the on-screen prompts to install it on your computer. After the installation process, run the program. This will be followed by a pop-up window that asks you to enter the registration code. If you have one, click on the “Register” option and enter your code along with your email. If you don’t have a code, you can either click on “Buy Now” to get a 20-digit registration code or close this window to choose the free trial option automatically.
Even though there's nearly no limit to how much you can save in your account, you're not going to miss out on neat features either. Letsupload lets you set a password for files and folders, send a file to someone over the built-in email function, upload files by their URL, share files with anyone, stream media files straight from your account, and copy share links in bulk.
The cheapest of these plans is $8.33 /month for 1 TB of backup space and support for 10 devices (and three sub accounts), if you pay for a whole year at once. You can add more for the same price and storage, like another 1 TB for another $10 /month. The maximum storage plan you can pay for is 15 TB, but if you want more you can contact their support team.
If you want to download as videos itself, you can use other free tools like Free Youtube Download to download all videos with a single click. Please be careful while installing this tool as it optionally installs a browser toolbar and modifies search preferences. So please make sure you read and uncheck the optional checkboxes while installing to avoid surprises in your browser. 
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