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Products that do what AST Visualizer does

Understand Complex Python Codebases in Seconds

  1. 1AS

    Hi HN, I built ast-visualizer.com because I wanted a way to visualize the architecture/structure of a Python repo before dived into the code. Most tools tell you what the code does; I wanted to see how it's built. The Problem: Onboarding onto a large codebase is a nightmare. LLMs help with single functions, but they struggle to show you the "God Objects," circular dependencies, or high-complexity hotspots across 50+ files. What it does: Dependency Graph: Visualizes imports and file complexity to find architectural bottlenecks. Radial AST Heatmaps: Maps individual files and color-codes…

    Feb 2026 · ast-visualizer.com

  2. 2VD

    2020 · github.com

  3. 3
    Tach140

    Untangle + visualize your codebase

    2025

  4. 4FC

    Hi HN! I've found this visualization tool immensely helpful over the years for getting an intuition for how an LLM "sees" some piece of text, and with a bit of elbow grease decided to move all compute to client side so I could make it publicly available. I've found it particularly useful for - Understanding exactly how repetition and patterns affect a small LM's ability to predict correctly - Understanding different tokenization patterns and how it affects model output - Getting a general sense of how "hard" different prediction tasks are for GPT-style models Known problems (that I probably…

    2023 · perplexity.vercel.app

  5. 5IM

    I built Staying – a tool that instantly turns your code into interactive animations with no setup required. Just write or paste your code and hit "Visualize". No installs, no accounts, no configuration. *Supports*: Python, JavaScript & experimental C++

    2025 · staying.fun

  6. 6SA

    Recently, I saw Github Next Code Brushes (https://githubnext.com/projects/code-brushes) which is a VSCode extension that can use AI to do things like make your code more readable, add types, etc. This inspired me: what if there was an extension that could use AI to make your code worse as well? Meet Spaghettify. An extension I developed that can do things like: - Obscure your code - Introduce a bug - Make the variable names way too descriptive - Use nonsymmetrical whitespace - Add irrelevant/rambling comments - Document the code with emoji - Document the code in any…

    2023 · spaghettify.dev

  7. 7VA

    I explored an alternative way to view codebases to the typical folder/file list, showing a bird's-eye-view of its structure. https://octo.github.com/projects/repo-visualization

    2021 · octo.github.com

  8. 8

    AST-based codebase visualizer with analyzer and comparison

    Feb 2026 · dev-swat.com

  9. 9TV

    Hey everyone! We're Evan and Caelean, the authors of Tach. Tach lets you visualize the architecture of your Python codebase, and gives you the tools to incrementally improve it. It uses module boundaries to give teams the benefits of microservices without the deployment complexity. If your code has been getting tangled up as your team and codebase grows, Tach helps you move back in the right direction, incrementally and quickly. You can use Tach to incrementally adopt a "modular monolith" architecture [1], for better local reasoning and smoother feature development. Since our last Show HN…

    2025 · github.com

  10. 10

    Turn codebases into interactive maps, graphs, and governance

    Jul 2026 · dev-swat.com

  11. 11AB

    I've created a web app for querying and visualization of ADS-B datasets: https://adsb.exposed/ Source code: https://github.com/ClickHouse/adsb.exposed/ The results significantly exceeded my expectations because the pictures are insanely beautiful, and the data is a treasure trove. It proves many statements that were not certain: - it is feasible to generate tiles by aggregation on a pixel level (instead of hexagons or rectangular grid); - it does not require JPG/PNG tiles - we can transfer raw bitmap data with zstd compression; - it is possible to…

    2024 · adsb.exposed

  12. 12VT

    Hi HN! I'm Gabriel, the author of dep-tree (https://github.com/gabotechs/dep-tree), and I wanted to show off this tool and explain why it's being really useful at my current org for dealing with code complexity. I work at a startup where business evolves really fast, and requirements change frequently, so it's easy to end up with big piles of code stacked together without a clear structure, specially with tight deadlines. I made dep-tree [1] to help us maintain a clean code architecture and a logical separation of concerns between parts of the application, which is…

    2024 · github.com

  13. 13

    Visualize code for faster onboarding, planning, and reviews.

    2021

  14. 14AI

    I built this software to help users who need to do static code analysis for C/C++ codebase. This can help you to explore the ASTs interactively. It can replace the Clang ast dump completely and also you can search the code/ASTs in a structual way. For example you can search a function which matches specific name or number of paremeters.

    May 2026 · uvic-aurora.github.io

  15. 15NV

    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.

    Jan 2026 · marketplace.visualstudio.com

  16. 16
    Codemap130

    The code visualizer you wished for

    2020

  17. 17

    Visual map & GPS for your codebase

    2024

  18. 18TV

    This nifty tool plots the traceroute results and shows you the RTT as well as the distance travelled by the packets! Supports MTR, flyingroutes and of course, traceroute. The existing solutions were too limited so I made that. Let me know if you have any feedback

    Sep 2025 · kriztalz.sh

  19. 19TM
  20. 20

    Know when your code becomes unmaintainable

    Apr 2026 · marketplace.visualstudio.com

  21. 21

    a niche product that visualizes Bezier control points

    2024

  22. 22CC
  23. 23WC

    Hi all, I'm Ivan, and together with Alex, we're building a diagram visualization tool for codebases. Alex and I are devs, and we've noticed that recently we've been super productive at writing code (prompting :D). But when it comes to understanding big systems, prompting doesn't work that well — for that, diagrams are best imo. Most tools out there don't scale to big projects (e.g. PyTorch), so we're building CodeBoarding — a recursive visualizer for codebases. It starts from the highest level of abstractions and lets you dive deeper. We use static analysis and LLM agents. The control-flow…

    2025 · github.com

  24. 24CT

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