A Satellite View for Python Code

What it does

Understand any codebase in minutes. Creview visualizes code structure, dependencies, and complexity across Python, JavaScript, TypeScript, and more — no setup required.

Conquer technical debt and maintenance nightmares—whether the code was written by you, a coworker, or an LLM. Ready to analyze your next project? Python, JS, TS, HTML and more supported. Untangle legacy spaghetti and catch circular dependencies before they cause outages. High-fidelity Dependency Graphs mapping module imports across Python, JS, and TS. Identify "maintenance nightmares" at a glance and prioritize refactoring based on objective metrics. Automated McCabe Cyclomatic Complexity analysis calculated for every function in your project. Understand any repository in minutes without reading thousands of lines of code. Works by generating high-fidelity maps of your codebase via…from ast-visualizer.com

In the maker’s words, at launch

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…

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  AST VisualizerFeb 2026 · creview.io · ▲7

  Understand Complex Python Codebases in Seconds

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  Visualizing a Codebase2021 · octo.github.com · ▲283

  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

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  ADS-B visualizer2024 · adsb.exposed · ▲339

  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…

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  DevSwat AST- visualizer with analyzer Jul 2026 · dev-swat.com · ▲81

  Turn codebases into interactive maps, graphs, and governance

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  Fully client-side GPT2 prediction visualizer2023 · perplexity.vercel.app · ▲153

  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…

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  Git Heat Map – a tool for visualising git repo activity for each file2023 · github.com · ▲173

  Visualise a git repository by diff activity. Contribute to jmforsythe/Git-Heat-Map development by creating an account on GitHub.

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  /dev/null▲482

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

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  Rork Max▲1,428

  Best AI for iOS apps. Website that replaces Xcode

  Life & fun · Feb 2026 · rork.com

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  happycapy▲1,365

  The agent-native computer, for the rest of us

  AI · Feb 2026 · happycapy.ai

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  SuperX▲897

  All-in-one growth OS for serious 𝕏 creators

  AI · Feb 2026 · superx.so

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  KiloClaw▲868

  Hosted OpenClaw. No Mac mini required.

  Dev tools · Feb 2026 · kilo.ai

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  Lovon AI Therapy▲801

  Feel closer and have more fun with your partner every day!

  AI · Feb 2026 · lovon.app

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  I spent 3 years reverse-engineering a 40 yo stock market sim from 1986▲721

  Hello my name is Ben Ward for the past 3 years I have been remastering the financial game Wall Street Raider created by Michael Jenkins originally on DOS in 1986. It has been a rough journey but I finally see the light at the end of the tunnel. I just recently redid the website and thought maybe the full story of how this project came to be would interest you all. Thank you for reading.

  Work · Feb 2026 · wallstreetraider.com