Nomnoml Editor

Render UML/flow diagrams with self-hosted nomnoml to SVG in your browser

Interactive controls load with JavaScript. Processing stays in your browser.

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How to use

  1. 在输入区编写 Nomnoml 源码(如 [A] -> [B]、类图语法)。
  2. 处理后在下方预览 SVG;复制按钮复制源码,下载导出 SVG。
  3. Nomnoml 经 EXTRA_SCRIPTS 自托管加载(约 70KB,含 graphre),不请求 CDN。
  4. 复杂流程图也可试 Mermaid 编辑器;本页偏 UML/类图风格。

FAQ

Does Nomnoml Editor upload my data?

No. Nomnoml Editor runs locally in your browser and does not upload content to www.518882.com or third-party APIs.

Do I need an account?

No. Open and use — no signup, login, or paywall. Open Nomnoml Editor and use it — no signup, login, or paywall.

How is this different from upload-based tools?

Tools run locally in your browser; content is not sent to our servers for processing — suited to private text and drafts.

Are there limits?

Limited by device memory and the browser; very large inputs may slow the page. There is no account quota.