Show HN: Reladraw – A diagram language where you decide where to place things

I love making diagrams to help understand, plan, etc. However, the options are (A) auto-placement languages like Mermaid or Graphviz (which don't let me decide how the diagram looks), or (B) software like Draw.io which are powerful but are very time consuming (and inefficient for agents to manipulate).

I wanted to have the benefits of both, where you can define a diagram in a diagram language, but also retain a high degree of control over what the diagram looks like.

I also wanted this to work well for humans and agents.

On the Github link, there's a playground where you can try it out without installation. There's also instructions for a simple npm install and for installing a skill you can use with Claude or other agents.




Comments URL: https://news.ycombinator.com/item?id=49858513


Points: 32


# Comments: 7

guid

https://news.ycombinator.com/item?id=49858513

source_url

https://github.com/reladraw/reladraw

author_name

jpwalsh234

id: 7105
uid: 38PHn
insdate: 2026-09-26 20:05:05
title: Show HN: Reladraw – A diagram language where you decide where to place things
additional:

I love making diagrams to help understand, plan, etc. However, the options are (A) auto-placement languages like Mermaid or Graphviz (which don't let me decide how the diagram looks), or (B) software like Draw.io which are powerful but are very time consuming (and inefficient for agents to manipulate).

I wanted to have the benefits of both, where you can define a diagram in a diagram language, but also retain a high degree of control over what the diagram looks like.

I also wanted this to work well for humans and agents.

On the Github link, there's a playground where you can try it out without installation. There's also instructions for a simple npm install and for installing a skill you can use with Claude or other agents.




Comments URL: https://news.ycombinator.com/item?id=49858513


Points: 32


# Comments: 7


category: Hacker News
md5:
guid: https://news.ycombinator.com/item?id=49858513
source_url: https://github.com/reladraw/reladraw
updated:
image:
author_name: jpwalsh234
author_link:
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