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Diagramon 3.11.3

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@westsource westsource released this 30 Oct 09:15
· 37 commits to main since this release
v3.11.3
19906c3

Release 说明：v3.11.3

本页中英双语：中文在前，英文在后。 / Bilingual release notes: Chinese first, English below.

中文

Diagramon 3.11.3 把「图好不好看」和「开图快不快」两件事各自往前推了一步：Mermaid 默认换成 ELK 布局，
文件可以直接拖进窗口打开。

下载

方式 文件 说明
安装版（推荐） Diagramon_3.11.3_x64-setup.exe（约 62.17 MiB） 装完可用内置自动更新；缺 WebView2 时安装器会自动下载运行时
便携版（免安装） Diagramon-3.11.3-win-x64.zip（约 70.26 MB） 解压到任意位置，双击 diagramon.exe 即用；卸载 = 删文件夹

便携版说明：包里是 diagramon.exe + WebView2Loader.dll + ui\ + assets\，必须放在一起
（ui\ 与 assets\ 是从磁盘读的，不在 exe 里）。它不依赖额外要装的东西：不需要 Node.js、
不需要 Chrome、不需要 VC++ 运行库（exe 已静态链接 CRT），只需要 Windows 10/11 自带的 WebView2 运行时。
便携版的「检查更新」照常能发现新版，但更新走的是安装包（不会就地替换便携目录）——
要继续用便携形态，就手动下载新的 ZIP 覆盖。

本次亮点

  • Mermaid 默认 ELK 布局：分层图的走线更整齐、交叉更少。布局引擎离线随包，不联网；启动后自动预热，
    第一次出图不用等。想回到旧样子，点预览顶栏的「布局 · elk」切到 dagre 即可，选择按文件记住。
  • 拖拽打开文件：把 .mmd / .mermaid / .dot / .gv / .d2 / .drawio / .excalidraw 拖进窗口即可打开；
    拖动时会给出整窗提示，松手即进标签页。拖到右侧 AI 面板上仍然是「作为对话上下文」，两种行为靠落点区分。
  • 不支持的格式会明说：拖进来的是图片或压缩包时不会硬塞成一张满是报错的图，状态栏会告诉你忽略了几个文件。

修复

  • 目录/非图表文件的拖放不再产生「回退成 Mermaid 打开、整屏解析错误」的标签页。

关于 Diagramon

Diagramon 是一款本地优先的多格式图表编辑器：Mermaid / Graphviz DOT / drawio / Excalidraw
都可编辑并实时预览，AI 可辅助生成、评审与识图。渲染与校验不联网也能用 ——
只有你主动使用 AI 时，相关代码或图片才会发往你选择的上游。

官网：https://www.diagramon.com

系统要求

  • Windows 10 / 11 64 位
  • WebView2 运行时（Windows 10/11 通常已预装；缺失时安装器会现场下载）
  • 不需要 Node.js、Chrome 或 VC++ 运行库 —— 画布运行时与前端资源都随包分发

安装与更新

下载 Diagramon_3.11.3_x64-setup.exe 直接安装。已装旧版的用户可在
帮助 → 检查更新 里收到本版本（更新包即本安装包，签名见 latest.json）。

本安装包尚未做 Authenticode 代码签名，Windows SmartScreen 可能给出提示。

English

Diagramon 3.11.3 moves two everyday things forward: Mermaid diagrams now use the ELK layout by
default, and diagram files can be opened by dropping them onto the window.

Downloads

Type File Notes
Installer (recommended) Diagramon_3.11.3_x64-setup.exe (~62.17 MiB) Enables the built-in auto-update; if WebView2 is missing the installer downloads the runtime
Portable (no install) Diagramon-3.11.3-win-x64.zip (~70.26 MB) Unzip anywhere and run diagramon.exe; uninstall = delete the folder

About the portable build: it ships diagramon.exe + WebView2Loader.dll + ui\ + assets\, and those
must stay together (the ui\ and assets\ trees are read from disk, not embedded in the exe).
It needs nothing extra installed: no Node.js, no Chrome, no VC++ redistributable (the CRT is
statically linked) — only the system WebView2 runtime that comes with Windows 10/11.
"Check for updates" still finds new versions, but updating downloads the installer
(it does not replace the portable folder in place) — to stay portable, grab the new ZIP manually.

Highlights

  • Mermaid defaults to the ELK layout: layered diagrams get cleaner edges with fewer crossings. The
    layout engine ships offline and is warmed up after start-up, so the first render does not wait.
    Switch back any time from the preview toolbar ("Layout · elk" → dagre); the choice is remembered per file.
  • Drop files to open: drag .mmd / .mermaid / .dot / .gv / .d2 / .drawio / .excalidraw onto the
    window and release. A full-window hint appears while dragging; the file opens as a tab. Dropping onto
    the AI panel on the right still attaches the file as conversation context — the drop target decides.
  • Unsupported files are called out: dropping an image or an archive no longer produces a tab full of
    parse errors; the status bar tells you how many files were ignored.

Fixes

  • Dropping folders or non-diagram files no longer opens a "fell back to Mermaid" tab with a screen of
    parser errors.

About Diagramon

Diagramon is a local-first multi-format diagram editor: Mermaid, Graphviz DOT, drawio and Excalidraw
can all be edited with live preview, with AI assistance for generation, review and image recognition.
Rendering and validation work with no network at all — code or images reach a model only when you
actively use AI, and then only the endpoint you chose.

Official website: https://www.diagramon.com

Requirements

  • Windows 10 / 11 64-bit
  • WebView2 runtime (normally pre-installed on Windows 10/11; the installer downloads it if missing)
  • No Node.js, Chrome or VC++ redistributable needed — the canvas runtimes and front-end assets all
    ship inside the installer

Install and update

Download Diagramon_3.11.3_x64-setup.exe and run it. Users on an older version
will be offered this release via Help → Check for updates (the update package is this same
installer; its signature is in latest.json).

This installer is not yet Authenticode-signed, so Windows SmartScreen may show a warning.

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