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Alternatives

Products that do what Siren – featured Mermaid DSL targeting 4 Languages with Fable does

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!

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    A smarter way to create diagrams

    2023

  2. 2IB
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    Line9 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…

    Aug 2026 · line9.ai

  4. 4MA

    2024 · mermaid-ascii.art

  5. 5GF

    2025 · docs.mermaidchart.com

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    Maximize your diagramming efficiency with Mermaid AI

    2024

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    Drag & drop whiteboard with text based diagramming

    2024

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    Ferrite: Fast Markdown/Text/Code editor in Rust with native Mermaid diagrams Built a Markdown editor using Rust + egui. v0.2.1 just dropped with major Mermaid improvements: → Native Mermaid diagrams - Flowcharts, sequence, state, ER, git graphs - pure Rust, no JS → Split view - Raw + rendered side-by-side with sync scrolling → Syntax highlighting - 40+ languages with large file optimization → JSON/YAML/TOML tree viewer - Structured editing with expand/collapse → Git integration - File tree shows modified/staged/untracked status Also: minimap, zen mode,…

    Jan 2026 · github.com

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    Llama 2263

    The next generation of Meta's open source LLM

    2023

  10. 10OR

    Hi HN A few folks and I have been working on this project for a couple weeks now. After previously working on the Docker project for a number of years (both on the container runtime and image registry side), the recent rise in open source language models made us think something similar needed to exist for large language models too. While not exactly the same as running linux containers, running LLMs shares quite a few of the same challenges. There are "base layers" (e.g. models like Llama 2), specific configuration to run correctly (parameters, temperature, context window sizes etc). There's…

    2023 · github.com

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    Diagrams that don't look like they were auto-generated

    May 2026 · beauty-diagram.com

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    Convert hand-drawn diagrams into digital schemes

    2024

  13. 13AG

    Many JS libraries exist to build graphs on the web (Vega, chartJS, Plotly...). They allow to make charts quickly. But you lose flexibility: you're limited by the options they offer. I just created a gallery with hundreds of graphs made with d3.js and React. - Examples are split by graph types - They all come with explanation and code sandboxes - Gradual complexity to ease the learning curve It took me ages to create this project! Feedback welcome!

    2023 · react-graph-gallery.com

  14. 14M1

    I was building a Rust-based agentic coding TUI and needed to render Mermaid diagrams. Noticed the official mermaid-cli spawns a full browser instance (Puppeteer/Chrome) just to render diagrams. Decided to fix this. mmdr is a native Rust renderer. No browser, no Node.js. mermaid-cli: ~3000ms per diagram mmdr: ~3ms per diagram Supports 13 diagram types: flowchart, sequence, class, state, ER, pie, gantt, timeline, journey, mindmap, git graph, XY chart, and quadrant.

    Feb 2026 · github.com

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    2023 · mermaidflow.app

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    Tufte87

    CDN and Node package to generate ASCII graphs inline

    Jun 2026 · tufte.ai

  18. 18DA

    In the past I've used declarative diagram generation tools like Mermaid.js a lot for quickly drawing up things but for presentations or deliverables I find that I have to then move the generated diagrams over to a tool like Lucidchart which allows full control of the organization and customization. Therefore I am now working on this to combine the benefits of both into just one tool which can do both functions. The project is certainly in the early stages but if you find yourself making architecture diagrams I'd love to hear your thoughts on the idea or even a Github issue for a feature…

    Oct 2025 · github.com

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    Turn Mermaid flowcharts into editable Lucidchart files

    Apr 2026 · mermaidtolucid.com

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    Design Mermaid diagrams visually, in code, or with AI.

    Jun 2026 · mermaidcreator.com

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    Paste Mermaid/PlantUML/OpenAPI/SQL and export diagrams

    Jun 2026 · diagrampreview.com

  23. 23AS

    Hello HN! I've been playing a lot with https://hyperscript.org/ recently (not to be confused with the other hyperhype hyperscript). I threw together a quick Wordle clone in an evening to see what it would look like using this language. The main functionality that is missing is checking for invalid words. The word dictionary is also very small, so it's very easy. The goal here wasn't really to create a good version of Wordle, it was to build 80% of Wordle in a different language to see what it looks like. Turns out, it looks pretty good! Stuff like using CSS rule precedence to…

    2022 · arhamjain.com

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    Open-source shared notes with Markdown & Mermaid support

    Sep 2025

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