How to Download, Install, and Use draw.io (diagrams.net) on Windows

Introduction

When writing a thesis or creating technical diagrams, a reliable diagramming tool is essential; draw.io (also known as diagrams.net) is an open‑source, free, and user‑friendly option that the author recommends.

Downloading draw.io

Visit the official release page at https://github.com/jgraph/drawio-desktop/releases or the website https://www.diagrams.net/ and click the Download button to reach the Windows installer. If the network is slow, a pre‑downloaded installer is available at https://share.weiyun.com/hYE1DNx3 (password: r7rgvq).

Installing draw.io

Double‑click the downloaded draw.io-20.3.0-windows-installer.exe and choose an installation folder, e.g., D:\Software\ .

Proceed through the installer dialogs and click Install .

Finish the installation by clicking Complete .

Using draw.io

Launch the application; an initial tip message can be ignored.

Create a new diagram or open an existing one.

Familiarize yourself with the panels and tools displayed.

Save your diagrams using the provided options.

The tool offers powerful features that users can explore further.

Alternative Download and Installation Methods

You can also download the source code from https://github.com/jgraph/drawio-desktop , modify it for custom projects, or embed it in your own services. Note that downloading the source may trigger an OpenSSL error ( SSL_read: Connection was reset, errno 10054 ), which can be resolved as described in the author’s related article.

After extracting the source, open it with an IDE such as IntelliJ IDEA and run index.html to launch the editor.

Online draw.io

Access the web version directly via https://app.diagrams.net/?src=about , which provides the same diagramming capabilities without any installation.

Thank you for reading; hope this guide helps you get started with draw.io.