This tool has been discontinued, please check for forks as i will not update it anymore. I recommend cheking @yokrysty one, its being maintained and has new features. yokrysty/LoLAccountChecker
This tool will give you some information about your league of legends accounts and store them in a text file.
To add accounts, open the Accounts window and from there you can add a single account or import a text file with your account's username and password line-by-line in the following format:
username:password
Then, click on Start to start checking. Your account's should start appearing in the table, if not, verify the Accounts window to see the state of the account. You can stop whenever you want, and click Start again if you wanna resume.
You can also import and export checked accounts that you want to see later.
You can export your accounts to a JSON file (this way you can import it later), or by creating your own layout. Check Custom Export to see the variables and some examples.
The reason i'm reuploading this projects it's because people are selling it to others, this is a free open-source tool, i'm not going to change anything, the only thing i will probably update is the changes that are required between patches.