CodeViz – A diagram editor that understands your code (YC S24)
Hey HN, we’re Will and Liam, founders of CodeViz (YC S24). We’re building a VS Code extension that reads your code and generates editable architecture diagrams (C4, UML). It’s mostly used by teams to build shared context, agree on technical decisions, and visualize PRs. Here’s a recorded demo: https://youtu.be/Jh3wkrCj_WQ You can try the VS Code extension here: https://marketplace.visualstudio.com/items?itemName=CodeViz.... It’s free for 10 generations/month (no signup). Then, we have a $19/month plan for unlimited diagram generation and $50/month…
CodeViz – A diagram editor that understands your code (YC S24) launched on December 1, 2025 with 5 votes, #2,550 of 11,628 launches that month and more than 75% of that year's launches.
What it does
In the maker’s words, at launch
Hey HN, we’re Will and Liam, founders of CodeViz (YC S24). We’re building a VS Code extension that reads your code and generates editable architecture diagrams (C4, UML). It’s mostly used by teams to build shared context, agree on technical decisions, and visualize PRs. Here’s a recorded demo…
Does a similar job
all alternatives →
Collaboratively Edit Diagrams in VS Code with Draw.io2020 · github.com · ▲142This unofficial extension integrates Draw.io (also known as diagrams.net) into VS Code. - vscode-drawio/README.md at 14209ad462028cbf7013bc8e094bf0fc6e811d30 · hediet/vscode-drawio
Visual Studio Code 1.02016 · code.visualstudio.com · ▲309Microsoft's cross-platform text editor for developers
Visualize Data Structures in VS Code2020 · github.com · ▲509An extension for VS Code that visualizes data during debugging. - vscode-debug-visualizer/extension at master · hediet/vscode-debug-visualizer
Explain Code in VS Code2021 · marketplace.visualstudio.com · ▲139Instant time complexity, explanation, and documentation
Project Management as Code with Graphviz2017 · zwischenzugs.com · ▲122
More dev tools this month
the category →
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 28d ago · github.com
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 26d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 23d ago · openbot.run
Talanoa▲346Hi 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 · 21d ago · talanoa.email
CoreSpeed▲332One MCP for everything your agents need: apps, memory, tools
Dev tools · 28d ago · corespeed.io
Source: Show HN post ↗ · launch text quoted in part
Launched alongside, December 2025
the whole month →- GP
Life & fun · Dec 2025 · dosaygo-studio.github.io
Hi everyone! My name's Luke and I made the original Jmail here alongside Riley Walz. We had a ton of friends collaborate on building out more of the app suite last night in lieue of DOJ's "Epstein files" release. Please AMA!
Life & fun · Dec 2025 · jmail.world
PlanEat AI▲733AI turns your health goals into a 7-day menu & grocery list
AI · Dec 2025 · planeatai.com
Community, All the HN belong to you. This is an archive of hacker news that fits in your browser. When I made HN Made of Primes I realized I could probably do this offline sqlite/wasm thing with the whole GBs of archive. The whole dataset. So I tried it, and this is it. Have Hacker News on your device. Go to this repo (https://github.com/DOSAYGO-STUDIO/HackerBook): you can download it. Big Query -> ETL -> npx serve docs - that's it. 20 years of HN arguments and beauty, can be yours forever. So they'll never die. Ever. It's the unkillable static archive of HN and it's…
Dev tools · Dec 2025 · hackerbook.dosaygo.com
