Otter Browser is a free and open-source web browser that aims to recreate the best aspects of the classic Opera (web browser) (12.x) using Qt framework while keeping seamless integration with users desktop environments. Developed by Emdek
License: Open Source
K-Meleon is an open-source web browser for Microsoft Windows. Based on the same Gecko layout engine as Mozilla Firefox and SeaMonkey, K-Meleon's design goal is to provide a fast and reliable web browser while providing a highly customizable interface and using system resources efficiently. Developed by Christophe Thibault
License: Open Source
K-Meleon is a lightweight and highly customizable browser that excels in performance and efficiency, making it suitable for older systems. In contrast, Otter Browser offers a more modern and user-friendly experience with built-in privacy features and better compatibility with contemporary web standards.