LocalWP is a free and easy tool to set up and test WordPress sites locally on your computer.

• Quickly spin up new WordPress sites without needing a live server or hosting.
• Handy for experimenting with plugins, themes, and custom code before going live.
• Keeping your local environment separate from your production sites.
• It works offline, as long as you don’t have to install new things

So if you want a safe space to develop, test with WordPress give LocalWP a try.