LowLevelDesign Mastery
Visual-first LLD practice with diagrams, code & AI reviews
What it does
LowLevelDesign Mastery is a visual-first platform to learn and practice LLD the way real interviews happen. Instead of just reading theory, you clarify requirements, design class diagrams, apply design patterns, write code, and review solutions. It includes visual explanations, high-density cheat sheets, an interactive LLD playground, AI-powered feedback, and detailed solutions in multiple languages.
Does a similar job
all alternatives →- LLLearn LLMs LeetCode Style2025 · github.com · ▲181
- VIVisual intuitive explanations of LLM concepts (LLM University)2023 · ▲303
Hi HN, We've just published a lot of original, visual, and intuitive explanations of concepts to introduce people to large language models. It's available for free with no sign-up needed and it includes text articles, some video explanations, and code examples/notebooks as well. And we're available to answer your questions in a dedicated Discord channel. You can find it here: https://llm.university/ Having written https://jalammar.github.io/illustrated-transformer/, I've been thinking about these topics and how best to communicate them for half a…
- CAChainForge, a visual tool for prompt engineering and LLM evaluation2023 · chainforge.ai · ▲177
Hi HN! We’re been working hard on this low-code tool for rapid prompt discovery, robustness testing and LLM evaluation. We’ve just released documentation to help new users learn how to use it and what it can already do. Let us know what you think! :)
- IGInteractive Graph by LLM (GPT-4o)2024 · columns.ai · ▲45
More dev tools this month
the category →
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 3d ago · opentrailpaper.com
Lettertrace▲375Track your AI visibility for free (using your own API keys!)
Dev tools · 26d ago · lettertrace.com
Launched alongside, January 2026
the whole month →- IN
Hey HN! I wanted to share something I built over the last few weeks: isometric.nyc is a massive isometric pixel art map of NYC, built with nano banana and coding agents. I didn't write a single line of code. Of course no-code doesn't mean no-engineering. This project took a lot more manual labor than I'd hoped! I wrote a deep dive on the workflow and some thoughts about the future of AI coding and creativity: http://cannoneyed.com/projects/isometric-nyc
AI · Jan 2026 · cannoneyed.com
Automatic AI-powered code reviews the moment you open a PR
Dev tools · Jan 2026 · kilo.ai
