Trilium

As a free and open-source application, Trilium Notes offers complete transparency and freedom for users who value privacy and customization. Its core strength lies in hierarchical note-taking, enabling you to structure information in trees rather than flat lists. This approach is ideal for managing large collections of notes, research, or project plans. Being cross-platform, it provides a consistent and reliable note-taking experience across all your devices, empowering you to build a centralized repository for your thoughts and discoveries.