If you already have your files backed up and you want to upload them to your new account at 000webhost, you can do it with just a few clicks!
Firstly, log in to your control panel at 000webhost and choose an option Upload Own Website:
You will be redirected to your File Manager where you will be able to upload your files by clicking on the Upload files icon:
Once you upload your files, don’t forget to extract them by clicking on the folder and choosing Extract option:
Also, don’t forget to restore your database, if needed!