pyload is a free and Open Source download manager written in Pure Python and designed to be extremely lightweight, fully customizable. Developed by pyLoad Team
License: Open Source
Persepolis Download Manager is a user-friendly tool primarily aimed at Windows and Linux users, boasting features like download scheduling and virus scanning. In contrast, pyLoad is an open-source, cross-platform solution with a web interface and extensive plugin support, making it more flexible but potentially more complex for new users.