Show HN: Nogic – VS Code extension that visualizes your codebase as a graph
135 points - 01/13/2026
I built Nogic, a VSCode extension currently, because AI tools make code grow faster than developers can build a mental model by jumping between files. Exploring structure visually has been helping me onboard to unfamiliar codebases faster.
It’s early and rough, but usable. Would love feedback on whether this is useful and what relationships are most valuable to visualize.
All the GitHub links on your extension page are borked (including issues)
From the look of the associated domain it looks like you're going full product, best of luck
I'm a huge proponent of graph & visual analysis of complex systems - would have loved to try this out, but will always skip closed source editor extensions (especially in the age of widespread npm supply chain attacks & vibe coding)
Here's the source code minified and bundled:
https://www.gallery.vsassets.io/_apis/public/gallery/publish...
Unzip that archive and the source is in extension/dist folder.
I’m confused - is it the actual source code, or minified/bundled code? I don’t think those two are the same thing - unless of course you write your code minified. That would be really impressive.
That would be really impressive levels of psychopathy.
We will make this project open source soon!
I guess it is still useless in Ruby or Ruby on Rails.
Standard "find the method declaration" or "used here" do not work in Ruby on Rails. Still, huge companies maintain that Ruby on Rails mess, where you cannot properly investigate, so you just guess and use the search and find option.
Those codebases won't be replaced for a while, but good luck working on them. Such a headache!
Man am I glad I don't have to work with Ruby anymore
How come nobody came up with an LSP that can perform this, all this time ?
I've developed a small tool[1] that has helped me for the same problem, but in Python. Basically just uses simple parsers to attempt to find a definition wherever is sensible. Adding a Ruby module should not be too difficult, but it would probably be trickier than Python to get some good enough results
[1] https://github.com/federicotdn/irk
Because it's an unsolvable problem without static type annotations and as far as I'm aware Ruby doesn't have a good solution for those yet (or if they do nobody uses it).
Sorbet is a decent one. I don't think it ever solved "jump to definition" though. I would just `rg def (self\.)?function_name` or I eventually developed a vibe for where things were, which is sort of the Ruby excuse for the ungreppability of everything. Sorbet did allow us to generate front end types in Elm and also allowed for type safe Haskell FFI. Past tense because it's an old job; as far as I know it's still happening.
Someone needs to make TypeScript for Ruby.
First of all, ruby-lsp does a great job at this, and the recent Herb helps with frontend templates.
This is enough to navigate between controllers, models and libs, unless you're trying hard to be clever which you shouldn't.
Then, in Rails, things have a canonical place in the codebase, that is consistent between codebases.
This is in contrast to languages and frameworks where every codebase is setup differently, but the static typing helps find code wherever it's hidden without pain, and thus without need for cleanup and thoughtful design.
To each their own, I prefer power for me, and pain for whoever drifts from the convention.
bulletsvshumans
01/13/2026
Please publish to Open VSX so it is easily available for VS Code forks like Cursor as well.
It's available on Open VSX now!
I've tried it, but it's very slow on a not too complex codebase with my M3 Macbook Air.
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Language Files Lines Blank Comment Code
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Typescript JSX 121 18724 1699 1051 15974
TypeScript 61 5389 629 550 4210
CSS 5 1039 50 22 967
Markdown 3 657 173 0 484
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It was like 5-10FPS at best, not really usable unfortunately because I like these tools.
I'm using another similar one which is buttery smooth, Code Canvas.
We are actively improving on the performance! Also, I am a previous code canvas user too, but I felt like it didn't help me understand my codebase as much as I wanted it to.. that's why I decided to experiment something myself! :)
Thanks, CC is really helpful already for me the more tools like these exists, the better. With AI coding agents, I keep watching the visualization rather than the changeset first.
Nice, I wanted to build something similar for a long time. The coolest thing is to start summarising clusters for very large codebases, which essentially provides an LoD system for the context.
We were thinking of creating an MCP Server that could integrate well with the visualizer extension so that you'd understand the cluster visually and descriptively, so watch out for that! :)
X: @Davellele
Looks great, it was actually just playing around yesterday with `code canvas app` which is similar, and also Charkoal.dev and Haystack Editor (before code-review pivot) which are related. Yours looks better than any of them already!
I wish it was available in Cursor as well though. Not sure how exactly they manage their marketplace, most VSCode extensions seem to be there but now and then I encounter one that is missing for no apparent reason.
It is on Open VSX so you can download it directly from Cursor!
Great! I tried it on a standard Django project but it's not displaying any edges. It is able to detect imports at least, because "Add Connected Files" works, but no edges at all.
Is there a good place to report such issues?
hey! one of the co-founders of nogic here. sorry for the late response!! feel free to report your bug here on the nogic discord: https://discord.gg/pE9sadAm. there are a couple of issues regarding edges not showing in some cases, and we are hoping to address all of these issues by the end of the week.
I definitly think more tools like this are needed, but not open sourcing it is a mistake.
You will be quickly replaced by a friendlier competitor.
We will make it open source soon! Follow me on X (@Davellele) to be updated when we do :)
Thats good to hear but what are you waiting for?
Very cool visualization. However it crashes on a more complex project. I added a folder with 2000+ files(included my assets) and now the visualizer locks up then shows nothing on its tab in VSCode. How do I manually delete old boards so that I can try again with a smaller slice of the code(without assets)?
Imustaskforhelp
01/13/2026
Funny how world is so tiny. I am literally building myself an vscode extension which can abstract an api on top of google colab's vscode extension and I am able to effectively create a sandbox for any python code (I mean to be fair they all still share the same resource but that resource is of google)
I have also hacked together a way for it to create new kernels aka new vm's itself but that becomes really really slow and also I am trying to look at other options to sandbox inside the jupyter notebook itself.
The end result was very messy though so I was literally just currently experimenting with if I could just scrape/automate it from the browser directly.
All in All I must admit that Vscode extensions are/feel very quite competent from what I can gather.
I've been having great success with LLMs generating Mermaid diagrams and flowcharts from a repo. Claude Code and Cursor both do consistently great jobs. For example: `generate a mermaid swimlanes diagram of the XX logic flow`.
This is what I do previously too! The problem that I realize with them is that mermaid diagrams and flowcharts are static and sometimes oversimplified.
Closed source vscode extensions: not for me.
Will be open source soon!
Unfortunately the repository links are broken and this is ARR licensed.
I like the looks of it, but until it's open-sourced, it'll be a nope for me. As it seems like they've had their website up since late last year but no code up.
Really cool! I'm also dabbling with this idea. The biggest challenge I find is to reduce noise. Large codebases come with a lot of cruft. Surfacing every small detail in the visualization tends to make it messy and less useful. I've not seen contemporary tools tackle this, but think can be useful.
From your first page, this looks cool and needed. But as others have posted, I can't get to your github pages.
Will make it open source soon!
The illustration gif is way too fast. Hard to understand what is going on. Slow it down 2x or so.
Super cool! I've thought of literally this so many times.
Is there any way to add a file to a board, then "explore" the imports of that file and potentially adding those files as well? I'm thinking as a way to explore a code base better.
Best of luck :)
Only JS, TypeScript, and Python. You got me all excited for a C visualizer!
I always liked the idea having relationship based programming (graph programming), but with actual code. Never actually made the effort to make something like that. Pretty neat either way.
Thanks! Shoot me a message if you would like to have something added :)
X: @Davellele
I used to use Doxygen to create caller and callee graphs to understand code flow. Unfortunately, the tool hasn't really changed in more than a decade.
Recommend Lumyst - lumystai.com
This is incredibly needed!!
This is incredibly useful!