Obsidian is a free Markdown editor for Linux, MacOS, and Windows. You can use Obsidian as a note-taking and knowledge base application. It is free for personal use and does not require registration. All data is stored on your local system in plain text markdown files. However, you can sync that file with Dropbox. You can extend its functionality with plugins. It supports Git version control, internal links, graph views, audio recorders, LaTeX math, slides, backlinks and word counting. It is still in beta and is under active development.
You can also see all the download options available from here
Install Obsidian on Ubuntu
The Obsidian Markdown Editor is available as a portable AppImage and flatpak package. Download Obsidian in AppImage file format from the download link above and save it in your download folder. Open the terminal app (ctrl + alt + t) and execute the following commands one by one.
sudo chmod +x ~ Obsidian-0.10.11.AppImage
Here, “Obsidian-0.10.11.AppImage” is the downloaded file name. You can change it based on its file name.
Install Obsidian via Flatpak.
If you don’t have flatpak Install flatpak and flathub on Ubuntu system. Open a terminal and run it under the Obsidian Markdown Editor flatpak installation command.
flatpak install flathub md.obsidian.Obsidian
You can use the following command to open the Obsidian Markdown Editor.
flatpak run md.obsidian.Obsidian
Also read: How to reduce the default outage timeout to speed up Ubuntu shutdown