Obsidian

Graph based databases are the best structure if you want to use AI tools to automatically categorize and sort your screenshots and other files into a note taking app.

Obsidian works shockingly well. Everything goes in Obsidian.

Best note-taking app for working with .md files. Plain markdown files go well with AI.

One of the best and most advanced personal note-taking/personal wiki.

Back in 2010 there was Zulupad, but this is exactly what was needed. A much better and advanced version of it. Use it for work, use it for hobbies (great for world building and writing).

Saying this as i've used OneNote, Notion and Obsidian extensively.

Infinitely customizable - if you want to make it an incredibly stripped down snippet collector, Zettelkasten, or series of shower thoughts with nothing but Markdown, you can. If you want to install 60 community plugins and move on to the ones that aren't in the Community store yet, customize it with CSS, and have a widget-y dashboard with buttons and dropdown menus, you can do that too. (I'm somewhere in between.) But more to the point, it's a heck of a lot better than spreading all my notes to myself between 30232340 notepad .txt files in different folders, Notion, Docs and Notes on my phone.

Has it fixed the ADHD and the tendency to pick up every new productivity software? Nope, but that's my own issue. Has it greatly helped with consolidating and getting me into a routine? It sure has -- and it also has the really cool bonus of encouraging wikilinks within notes, which scratches a hypertext itch I forgot I had. (Also, there's a really robust TTRPG community within the Obsidian forums/Discord and a whooole subsection of user-made tips for GMs and players, so that's a nice little bonus for those of you into that hobby.)

From daily notes to research wikis, the plugin ecosystem makes Obsidian feel less like an app and more like a toolkit.

Been paying for a year because this tool fundamentally changed my research workflow. The bidirectional linking and graph view alone justify the cost.

Personally, I only wish better native LaTeX support for STEM researchers like myself, but that's a very niche need.

I’ve been exploring it for a while, and it’s quietly become one of my favorite tools for thinking and organizing ideas. What makes Obsidian stand out is how it feels like a personal knowledge vault—you can link notes, create connections between ideas, and gradually build a system that fits your brain.

What I really like about Obsidian is that it’s offline and free — super reliable as a private knowledge base. It feels more focused for writing compared to Notion, and with Git or syncing tools, backups are no headache. Search is lightning fast, so I never worry about losing track of anything.

As pretty much everyone does, Obsidian is a catch-all for all my thoughts. Using the iCloud Sync, I can take my notes with me without feeling tied to a specific platform. It's creative freedom at its best.

Obsidian’s a solid note app. Love that notes stay on my device for quick, offline access, and all the plugins let me tweak it to how I work—nice.

Obsidian comes across as a really flexible note-taking app that adapts to your unique way of thinking—having notes stored locally for quick, offline access and loads of plugins to tweak it makes it feel like a tool that grows with you.

Obsidian feels like a thoughtful writing app that bends to how you work—local storage for quick, offline access and tons of plugins to tailor it make it feel really personal.