NotebookLM is fantastic at one thing: helping you make sense of large amounts of information in a short amount of time. All I have to do is feed it my documents and weblinks, and it will summarize everything in plain language. I also use it to question my own knowledge with features like quizzes and flashcards.

However, NotebookLM isn’t really built for long-term storage. This is where Obsidian comes in. Obsidian doesn’t need much of an introduction - it simply gives you a stable space to store notes and build knowledge bases, and everything is stored locally in your vault.

Using these two apps together feels like it’s meant to be. There are a couple of key features that make a NotebookLM-Obsidian integration really smooth.

Why does Obsidian work so well with NotebookLM?

They balance one another’s strengths and weaknesses

Obsidian and NotebookLM work well together, first and foremost, because they solve opposite problems. NotebookLM is great at analyzing your materials and letting you interact with them, but it gives you almost nothing in terms of organizational tools.

Obsidian is the opposite of that. It’s one of the best PKM tools out there that lets you build and manage complex and interconnected research and materials. It does have AI plugins like Copilot, but they don’t come close to NotebookLM’s retrieval and synthesizing abilities. And together, you can use NotebookLM and Obsidian for both storing and interacting with your research.

There’s also one very practical reason why they integrate so well. Obsidian stores all your files in Markdown in your local vault by default. Markdown is a subset of plain text, and NotebookLM accepts plain text files.

Furthermore, if you have the Google Drive desktop app, you can select your Obsidian vault to sync automatically with your Drive. This will get your Obsidian content into Drive, which you can then fetch from within NotebookLM directly because it integrates with Drive.

This is what people mean when they say they’re “pairing” an app with NotebookLM (most of the time). If you can get your content into a local folder in a universal format like Markdown or PDF, and if you have Google Drive on your computer, then consider everything integrated with NotebookLM. Here’s how I do it…

How I pair Obsidian with NotebookLM

All you need is Google Drive

You could technically turn your Obsidian vault into a website using tools like Quartz and then feed the links to NotebookLM. That setup might make sense for some, but for me, it involves too many moving parts than the payoff is worth, such as publishing rules or accidental leaks. So I just stick to the local vault setup since it’s there regardless of whether I have a website or not.

First, I added my Obsidian vault to my Drive by opening the desktop app and selecting “add more folders to sync”. This might take a minute depending on how many files you’re working with. Once that’s synced, you can simply start fetching your plain text and PDF files from within a NotebookLM notebook.

Add a source, select Drive, look for your vault in the My Computer folder, and select your documents. That’s all there is to it. And since my vault automatically syncs to Drive, I can fetch new files as I create them.

How I get the most out of my NotebookLM-Obsidian pairing

Putting the two powerhouses to use

The main reason I’ve been pairing Obsidian and NotebookLM is because I do most of my long-form novel drafting and quick note-dumping in Obsidian. This is pretty much where most of the work happens, and I make the most of Obsidian’s basic features such as the Graph view and Canvas.

Then I use NotebookLM to interact with my own writing and fact-check myself. It helps me to quickly fetch small details, do sanity checks, review timelines, catch loopholes, flag inconsistencies across chapters, and things like that.

I’ve also been using it in the context of my UX design research. Obsidian holds things like my hypothetical user personas, but NotebookLM can actually cross-reference them with example case studies to help keep me on track. It also helps me pull recurring pain points in my practice designs, and even gives me ideas for new approaches.

This is honestly how I use NotebookLM most of the time - a mix of my personal work and design studies. I also try to make the most of all the goodies such as flashcards, quizzes, mind maps, and reports. And whenever I get a good response, I copy the answer back into Obsidian. It retains the formatting despite it being rich text.

Two tools, one workflow

Obsidian and NotebookLM work so well together because they stay in their own lanes. Obsidian handles all of my information storing and formatting, and then NotebookLM helps me interact with it in whichever way I want to. The local Markdown vault is also a major bonus in terms of getting everything to sync in the background.