Show HN: UML is dead – so I'm building the tool to revive it
5 SamiCostox 3 7/18/2025, 7:45:29 AM rapidcharts.ai ↗
Hi HN,
UML diagrams were meant to standardise system design, but they’ve become outdated — slow to build, hard to change, and rarely used in practice. Most tools feel clunky, and diagrams often go stale fast.
I’m building RapidChart, a tool to bring diagramming back to life — fast, flexible, and developer-first.
What makes it different:
Cursor-style interface for rapid diagram creation
Fully customisable and exportable
AI-assisted (works with GPT-4, Claude, etc.)
100% free
This began as part of my research at Imperial College London, and I’d really value your feedback.
Here’s the link: https://www.rapidcharts.ai
Thanks!
Comments (3)
gardenhedge · 3h ago
One benefit of spending 2 hours creating a diagram is that you then understand it. If it's generated for you then you lose that.
RapidChart · 3h ago
The idea is to rely on the tool to handle the tedious part of placing all the shapes, etc., but to do the thinking yourself! That being said, it's a good point
gardenhedge · 2h ago
Yeah that makes sense. I can see it being a huge benefit when you need to change a design