
On the service website you are met by a banner: " Obsidian is the second brain for you forever." This is a loud statement, but it is not far from the truth. Obsidian is a shell for storing thoughts, texts and notes written in a simplified Markdown marking language.
In fact, this is an application for creating a knowledge base that reminiscent of the simplicity of the Wiki approach, and at the same time is much more convenient, since it has its own unique shell for structuring content. Obsidian has a free tariff, the application works on a PC and the Internet connection is not necessary, although you can configure synchronization through the cloud.