
Obsidian
A versatile writing app tailored to your thinking
4.9•169 reviews•4.2K followers
A versatile writing app tailored to your thinking
4.9•169 reviews•4.2K followers

4.2K followers
4.2K followers
I am terrified to admit this but I think the Obsidian taught me to love my second brain more than my first. Ultimately, I think why is that it's batting 1000 on left brain AND right brain. I feel equally at home building a multi-chapter sci fi universe as I day organizing the codebase components for Lore Machine. Last thing I'll say: light FRICKING weight. I love that it operates like a framework through which I can sharpen my thinking. Thank you Obsidian, THANK YOU.
I'd love suggestions for what plugins might be used. 16k community plugins is a lot. But that's just me being lazy. And I fear that even if Obsidian took me up on this it would get annoiying. We're basically in no notes territory here.
I was looking for a world building app to complement what we're building at Lore Machine - something I could suggest to users balancing story worlds that contain hundreds of characters, locations and narrative data points. There are a few very RPG oriented ones that shall go remain nameless. But they did too much. Deep in a Reddit thread one night, a voice of reason suggested: "Just use Obsidian." And like that, it was on.
There is a moment in every workflow where you realise a tool is not just useful, it is foundational. Obsidian was that moment for me.
Before making the switch, I was living inside Apple Notes. It worked well enough for quick personal reminders and short captures, but the moment content got complex, the cracks showed. Formatting would break, structure was hard to maintain, and anything I wanted to reference later was buried somewhere with no real logic holding it together. For light personal use, Apple Notes is fine. For building a serious knowledge system, especially one designed to work alongside AI, it simply was not built for that job.
Obsidian was. The difference was immediately clear. The seamless experience it delivers is not accidental. It is the result of a product designed around how information actually connects, rather than just how it gets captured. The folder structure, the linking between notes, the way everything sits in clean readable formats, it all adds up to something that feels genuinely intelligent in its design.
What changed everything for me was realising that Obsidian is not just a note-taking app. It is a notebook for AI. Whenever I need to reference anything inside a conversation with Claude, Codex, or any other model, it is all there, structured and ready. My phone and my Mac both have it installed, and the cloud sync means that wherever I am working from, I am always pulling from the same brain. That freedom to move between devices without losing context is something I did not fully appreciate until I had it.
Obsidian asks you to think about structure from the beginning. You need to decide how you want to organise your folders, how you want to categorise your notes, and what system you are building toward. For someone who enjoys that kind of design thinking, it is one of the most satisfying parts of using the product. For someone who just wants to open an app and start typing without thinking, it might feel like homework at first.
But that structure is also exactly what makes it so powerful. Obsidian rewards the effort you put into it. The more intentionally you build inside it, the more useful it becomes, especially as a knowledge layer that sits beneath everything else you are building with AI. It has become one of those tools I cannot picture working without.
Apple Notes was my previous home, and the comparison tells the whole story. Apple Notes is comfortable, native, and genuinely good for keeping a handful of personal things in one place. But it does not format content well for anything beyond simple text, it has no real folder depth for complex organisation, and it was never designed with AI workflows in mind. Once I started using Obsidian as the backbone of my AI note system, going back to Apple Notes felt like going back to sticky notes on a wall.
It opens, it works, and it never nags me to upgrade or sign up for anything, which honestly feels rare now. And it bends to however I already think instead of forcing me into someone else's idea of how notes should work.
The flexibility is also the trap. It's so endlessly customizable that I've lost whole afternoons tweaking plugins and themes and calling it "setting up my system" when I was really just avoiding the writing.
I bounced between Apple Notes and Google Keep for a while, and they're both great for quickly jotting something down. But neither one let me actually build anything on top of the notes, so things just piled up and went nowhere.
Lightweight
Supports markdown, which is faster than using cursor-based text changes
Supports a variety of command-based interactions, which is preferable
It's free
Community plug-ins
Wide customizability
File structure isn't always the easiest way to interact with vault
UI can get cluttered when you use a lot of community plug-ins
Markdown language acceptance, preference for keyboard control of applications, command-centred UI, scale for customisation and community plug-ins
I started using this on a friend recommendation from Product Hunt. It has become the place where I can see my thinking actually living. It doesn't integrate with much and that is part of the point, it stays out of the way and lets me keep notes, drafts, and half-formed ideas in one connected space that I control. What I appreciate most is how the linking between notes works over time, the second and third connection usually surfaces something I would not have thought to search for.
After I started using Obsidian, my whole way of thinking and working changed.
It is not just a notes app for me anymore. It became the place where I plan, write, connect ideas, structure projects, and keep my brain from scattering across ten different tools.
Then I started taking my Obsidian projects into the IDE, and that moved everything to another level.
In this agentic era, notes are not just notes. They become context. They become instructions. They become project memory. A well-structured vault can guide an AI agent much better than random prompts ever could.
Obsidian gave me the thinking layer. The IDE gave me the execution layer. Together, they turned my ideas into a working system.
The graph view and visual thinking side of Obsidian also had a real effect on me. Seeing ideas connected in space changed the way I organize thoughts. It made planning feel less like filling boxes and more like building a living map of what I am working on.
Since I started using Obsidian, my productivity has gone up massively. I think more clearly, return to old ideas faster, and build long-term projects without losing context.
It has a learning curve, but that is also part of why it is powerful. Obsidian does not force a workflow on you. It gives you the raw material to build your own operating system for thinking.
For anyone who writes, builds, researches, codes, plans, or works with AI agents, Obsidian is one of the rare tools that actually becomes more valuable the longer you use it.
Really interesting how you can connect all of the sub-files and keywords within different documents. I started using it to study different books, but now I'm just applying other features to other areas of my life


