mdSilo is described as 'Lightweight knowledge silo and networked-writing tool equipped with WYSIWYG Markdown editor and reader. Use it to organize writing, network thoughts and build a Second Brain on top of local plain text Markdown files' and is a Note-taking tool in the office & productivity category. There are more than 10 alternatives to mdSilo for a variety of platforms, including Linux, Mac, Windows, Web-based and Android apps. The best mdSilo alternative is Logseq, which is both free and Open Source. Other great apps like mdSilo are Typora, Trilium Notes, MarkText and Dendron.