Obsidian is described as 'A second brain, for you, forever. The human brain is non-linear: we jump from idea to idea, all the time. Your second brain should work the same' and is a very popular Note-taking App in the Office & Productivity category. There are more than 50 alternatives to Obsidian for a variety of platforms, including Mac, Windows, Linux, Online / Web-based and iPhone. The best alternative is Joplin. It's not free, so if you're looking for a free alternative, you could try Standard Notes or Notion. Other great apps like Obsidian are Google Keep (Free), Microsoft OneNote (Freemium), Typora (Free) and Evernote (Freemium).
With NotePlan you get serious work done. It helps you to capture important details and keep track of things at work. Manage your calendar, todos and notes in one place. Find out how! HERE’S HOW IT WORKS 1. Capture Your Thoughts
Craft is a tool for creating beautiful documents and notes and sharing your thoughts. Everything you crate in Craft can be shared with one tap. Craft supports inline markdown, backlinks, code snippets, images, videos, attaching PDF files, and rich link previews.