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Re:Show HN: Free Mermaid Diagram Editor by BLKNSLVR on Tuesday July 07, 2026 @09:58PM (#48826573)
Handy.

I've been (very loosely) trying to get AI to generate diagrams for a while, and even Copilot can't get Visio's file format correct enough to allow Visio to open it successfully.

This is a nice clean interface I can just paste attempts into. Thank you!

Re:Show HN: Free Mermaid Diagram Editor by keithnz on Tuesday July 07, 2026 @10:53PM (#48826935)
just get ai to generate mermaid, it's super competent at doing it, you don't really need any other tools.
Re:Show HN: Free Mermaid Diagram Editor by user3939382 on Tuesday July 07, 2026 @11:15PM (#48827047)
I’ve found that it can do it, but the aesthetics of the diagrams it generates are awful. I end up going back to manual Omnigraffle.

There is an art to designing the human to human communication aspect of diagrams that transcends which lines connect where.

Re:Show HN: Free Mermaid Diagram Editor by FailMore on Wednesday July 08, 2026 @09:22AM (#48831631)
I created https://smalldocs.org to help with this. After installing you can tell your agent to "sdoc me a mermaid diagram of X flow" or "sdoc me a visual architecture of this repo" or something, and it handles it nicely (imo!).

Here is the mermaid diagram gallery: https://smalldocs.org/s/PpArByXuNBA5kGS1JVMUW6#k=uTqNRLqzz_T...

Code available: https://github.com/espressoplease/smalldocs

Discord: https://discord.gg/txjATTsDaq

Re:Show HN: Free Mermaid Diagram Editor by ghosts_ on Thursday July 09, 2026 @02:54PM (#48850728)
Yeah the main product I'm working on (Moxie Docs) has AI generation of mermaid diagrams, I find that it works __well enough__ but I needed some strong guardrails, quality checks, and templating to make sure it doesn't generate broken diagrams (or useless ones). First few iterations it would create a diagram for everything and it was a bit zealous on when it decided diagrams would be useful.