Siren – featured Mermaid DSL targeting 4 Languages with Fable
Hello everybody! I just finished a hobby project. It is a F# library for creating Mermaid graph YAML. I used Fable to transpile to JS (+types) and python, and added a convenience C# access layer. This means you have a nice API for creating Mermaid graphs in 4 languages. My documentation also includes code examples for all languages and a blogpost on library design. Would appreciate feedback!
Siren – featured Mermaid DSL targeting 4 Languages with Fable launched on June 5, 2024 with 5 votes, #1,622 of 4,672 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 2 years on.
What it does
A domain specific language (DSL) for creating mermaid graph YAML! - Freymaurer/Siren
Does a similar job
all alternatives →
Line9 – A Mermaid rendering engine with its own layoutAug 2026 · line9.ai · ▲87Line9 is a new rendering engine for Mermaid flowchart diagrams that aims to remove the need for manual adjustment of layout. Mermaid is a popular text-based language for describing multiple types of diagrams. Several Mermaid rendering engines already exist. Most, like the original mermaid.js, use Dagre or ELK graph drawing libraries to automatically lay out their diagrams. I’ve used Mermaid for the past four years but often recreated my flowcharts in a diagram editor so that I could modify the layout to something that better suited my needs. Use Line9 when you want an automatic flowchart…
I built an app to generate story relationships using Mermaidjs2025 · github.com · ▲144📚 Literary relationship maps. Contribute to herol3oy/austen development by creating an account on GitHub.
- MAMermaid ASCII Diagrams2024 · mermaid-ascii.art · ▲234
GUI for editing Mermaid class diagrams2025 · docs.mermaidchart.com · ▲230
More dev tools this month
the category →
Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.
Dev tools · 1d ago · github.com
open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.
Dev tools · 29d ago · github.com
Contribute to reladraw/reladraw development by creating an account on GitHub.
Dev tools · 27d ago · github.com
OpenBot▲362Grok Bot alternative: free, local, open-source, multiplayer
Dev tools · 24d 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 · 22d ago · talanoa.email
Source: Show HN post ↗
Launched alongside, June 2024
the whole month →
La Growth Machine▲1,216Create personalized, multi-channel conversations at scale
AI · 2024 · lagrowthmachine.com
PyjamaHR▲1,132Hiring on autopilot. The AI applicant tracking system (ATS).
Work · 2024 · pyjamahr.com