It depends on the font and how you plan to use it. Some fonts are free to use for any purpose, while others require a license to be purchased before they can be used.

Free & Open Source Fonts

Fonts that are free to use for any purpose are often referred to as "open source" or "free" fonts. These fonts are typically available for download from a variety of websites, and they can be used for personal or commercial projects without the need to purchase a license.

Proprietary Fonts

On the other hand, many fonts are proprietary and require a license to be purchased before they can be used. These fonts are typically developed by commercial font foundries or individual designers, and they may be subject to copyright law.

If you want to use a proprietary font in your project, you will need to purchase a license from the font's creator or an authorized distributor.