Draw.io：在线流程图和图表制作工具

Draw.io (diagrams.net) compared with Microsoft Visio, Lucidchart and SmartDraw
Draw.io (diagrams.net)	微软 Visio	Lucidchart	SmartDraw
Technical fields and diagram types: Draw.io is a general diagram editor for flowcharts, UML, network, electrical and process diagrams, with link associations that follow blocks when they move. It does not target scaled engineering drawings.	Technical fields and diagram types: Visio Plan 2 adds BPMN 2.0, P&ID, electrical diagrams, floor plans and 250,000+ shapes. It is the most suited to process and plant engineering documentation.	Technical fields and diagram types: Lucidchart covers flowcharts, BPMN, ERD, UML, AWS network diagrams and C4 models, plus roadmaps and org charts. The focus is software and business processes.	Technical fields and diagram types: SmartDraw is strong in scaled drawings such as floor plans, site plans, electrical and plumbing plans. Data attached to shapes can generate equipment lists.
Openness and hosting: The source code is under the Apache License 2.0. It can be self-hosted from a Docker image or a .war file, or run as a desktop application.	Openness and hosting: Visio is proprietary. Files use the .vsdx format, which other tools often read only partly.	Openness and hosting: Lucidchart is a hosted proprietary service with more than 100 integrations, including Jira, Confluence and Google Drive.	Openness and hosting: SmartDraw is a hosted proprietary service. The page reviewed mentions integrations with Microsoft and Google, and SSO provisioning.
成本模型： Draw.io is free to use online, and the page of the project claims no copyright on the diagrams you create.	成本模型： Plan 1 (web only) and Plan 2 (web and desktop) use per-seat licensing. A one-month trial exists.	成本模型： Lucidchart offers a free sign-up and Individual, Team and Enterprise plans. Prices were not available on the pages reviewed.	成本模型： Prices were not listed on the pages reviewed, so none are given here.
Platform and storage: It runs in a browser without registration. Files can be saved to Google Drive, OneDrive, Dropbox or locally, and exported as XML, PNG or SVG. Teams with confidential designs should use local storage or a self-hosted copy.	Platform and storage: The Visio desktop app runs on Windows. The web app works in a browser, but data linking needs the desktop app.	Platform and storage: It runs in a browser. Diagrams can be linked to Google Sheets, Excel or CSV data to build visuals automatically.	Platform and storage: The page offers a web app. It also lists PDF import for floor plans and AI generation from a text prompt.
Typical user: Engineers who want a free editor with no account, or who must host the tool inside their own network.	Typical user: Organizations that already use Microsoft 365 and need process, P&ID or electrical diagrams with data links.	Typical user: Software and product teams that need shared editing and integrations with their project tools.	Typical user: Facility, safety and site planners who need accurate drawings at scale.

Draw.io (diagrams.net) compared with Microsoft Visio, Lucidchart and SmartDraw

Draw.io (diagrams.net)

微软 Visio

Lucidchart

SmartDraw

Technical fields and diagram types: Draw.io is a general diagram editor for flowcharts, UML, network, electrical and process diagrams, with link associations that follow blocks when they move. It does not target scaled engineering drawings.

Technical fields and diagram types: Visio Plan 2 adds BPMN 2.0, P&ID, electrical diagrams, floor plans and 250,000+ shapes. It is the most suited to process and plant engineering documentation.

Technical fields and diagram types: Lucidchart covers flowcharts, BPMN, ERD, UML, AWS network diagrams and C4 models, plus roadmaps and org charts. The focus is software and business processes.

Technical fields and diagram types: SmartDraw is strong in scaled drawings such as floor plans, site plans, electrical and plumbing plans. Data attached to shapes can generate equipment lists.

Openness and hosting: The source code is under the Apache License 2.0. It can be self-hosted from a Docker image or a .war file, or run as a desktop application.

Openness and hosting: Visio is proprietary. Files use the .vsdx format, which other tools often read only partly.

Openness and hosting: Lucidchart is a hosted proprietary service with more than 100 integrations, including Jira, Confluence and Google Drive.

Openness and hosting: SmartDraw is a hosted proprietary service. The page reviewed mentions integrations with Microsoft and Google, and SSO provisioning.

成本模型： Draw.io is free to use online, and the page of the project claims no copyright on the diagrams you create.

成本模型： Plan 1 (web only) and Plan 2 (web and desktop) use per-seat licensing. A one-month trial exists.

成本模型： Lucidchart offers a free sign-up and Individual, Team and Enterprise plans. Prices were not available on the pages reviewed.

成本模型： Prices were not listed on the pages reviewed, so none are given here.

Platform and storage: It runs in a browser without registration. Files can be saved to Google Drive, OneDrive, Dropbox or locally, and exported as XML, PNG or SVG. Teams with confidential designs should use local storage or a self-hosted copy.

Platform and storage: The Visio desktop app runs on Windows. The web app works in a browser, but data linking needs the desktop app.

Platform and storage: It runs in a browser. Diagrams can be linked to Google Sheets, Excel or CSV data to build visuals automatically.

Platform and storage: The page offers a web app. It also lists PDF import for floor plans and AI generation from a text prompt.

Typical user: Engineers who want a free editor with no account, or who must host the tool inside their own network.

Typical user: Organizations that already use Microsoft 365 and need process, P&ID or electrical diagrams with data links.

Typical user: Software and product teams that need shared editing and integrations with their project tools.

Typical user: Facility, safety and site planners who need accurate drawings at scale.