Upload a file tool in HTML

I have a static HTML website, in this website I have 2 pages for downloading PDFs and I upload and put files in the website in daily basis but I am doing it a hard way which I open a server (FTP) every time and re-edit the code to add a new item in (Downloads page) with links and name and staff.

What I want to know and have is a tool of a page in my website which I can reach it securely and upload my files by one-click without opening domain FTP each time,

But the important thing I want is when every time I upload a file it will automatically add new item in (Downloads) and become easy to download. I REALLY NEED YOUR HELP