A demo account is a tool for you to get familiar with the platform, practice your trading skills on different assets, and try out new mechanics on a real-time chart without risks.
The funds on the demo account are not real. You can increase them by concluding successful trades, but you cannot withdraw them.
Once you’re ready to start trading with real funds, you can switch to a real account.
Refer to the “How to switch from a demo to a real account?” article for more information.