GIMP stands for GNU Image Manipulation Program which is an opensource image editor program supporting almost every popular image formats. Developed by Free Software Fondation (GNU)
License: Open Source
Paint.NET is a user-friendly, lightweight editing tool ideal for quick and simple image tasks, while GIMP is a powerful, feature-rich application suited for professional-grade editing and image manipulation. The choice between them depends on the user's needs, with Paint.NET being better for beginners and GIMP catering to advanced users.