Which Microsoft Visio alternative is open source?

draw.io (diagrams.net), LibreOffice Draw are open source.

Are compatible (reverse-engineered) alternatives legal?

Yes. Tools marked Compatible are independent re-implementations built to open the same files or run the same software. They do not contain the original program's code. They are not cracked or pirated copies, which we never recommend.

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Office & Productivity · Diagrams and flowcharts

Microsoft Visio 的免费替代品

Microsoft Visio by Microsoft: Flowcharts, org charts, network and floor-plan diagrams. Pricing: subscription. Here are 2 free options that cover the same job.

替代品	类型	平台	最适合
draw.io (diagrams.net)Can import Visio (.vsdx) files.	开源	Web, Windows, macOS, Linux	All kinds of diagrams, online or offline	获取
LibreOffice DrawOpens Visio files through import filters reverse-engineered by the Document Liberation Project.	兼容	Windows, macOS, Linux	Opening and editing existing Visio files	获取
Microsoft Visio付费原版	订阅	–	Diagrams and flowcharts	访问

替代品详情

01/ draw.io (diagrams.net)

开源

最适合： All kinds of diagrams, online or offline.

Can import Visio (.vsdx) files.

支持平台：Web, Windows, macOS, Linux

访问 draw.io (diagrams.net)

02/ LibreOffice Draw

兼容

最适合： Opening and editing existing Visio files.

Opens Visio files through import filters reverse-engineered by the Document Liberation Project.

支持平台：Windows, macOS, Linux

访问 LibreOffice Draw

关于“兼容”工具： 独立、合法的重新实现，能打开相同的文件或运行相同的软件。不是破解版。

常见问题

有没有免费的 Microsoft Visio 替代品？

Yes. draw.io (diagrams.net) is a strong free option for all kinds of diagrams, online or offline. Other choices include LibreOffice Draw.

哪款 Microsoft Visio 替代品是开源的？

draw.io (diagrams.net), LibreOffice Draw 是开源的。

兼容（逆向工程）替代品合法吗？

合法。标为“兼容”的工具是独立的重新实现，用于打开相同的文件或运行相同的软件，不包含原程序的代码。它们不是破解版或盗版——我们从不推荐那些。