draw.io is our first recommendation for a free Visio alternative on a Mac. It combines a browser editor with an offline desktop app, and its core diagramming tools are free and open source. You can start drawing without creating an account.
It is not the only option. LibreOffice Draw is worth considering for opening older Visio files, yEd is useful for automatically arranging complex diagrams, and Excalidraw suits quick sketches and shared whiteboards.
This guide covers free diagramming software you can keep using, including open source alternatives and commercial apps with limited free plans. We explain the restrictions that matter: document limits, offline access and whether you can actually edit an imported Visio file without paying.
If you also want to compare paid software, see our guide to the best Visio alternatives for Mac.
Free Visio Alternatives for Mac Compared
The following tools provide ongoing free use of their core drawing features. The open source column distinguishes them from free proprietary software.
| Tool | Best for | Open source? | How it works on a Mac | Main limitation |
|---|---|---|---|---|
| draw.io / diagrams.net | Everyday flowcharts, network diagrams and process maps | Yes | Browser or offline desktop app | Imports VSDX; does not export editable VSDX |
| LibreOffice Draw | Offline drawing and opening existing Visio files | Yes | Desktop app | Imports VSD, VSDX and VDX; cannot save back to Visio format |
| yEd Graph Editor | Automatic layouts and connected diagrams | No | Desktop app; yEd Live is a separate browser option | No direct VSD/VSDX diagram import or export |
| Excalidraw | Sketches, brainstorming and shared whiteboards | Yes | Browser; offline editing through its web app | No direct Visio file editing |
| Google Drawings | Simple diagrams for Google documents | No | Browser with a Google account | Basic drawing tools; no direct Visio file editing |
| Inkscape | Custom vector diagrams and illustrations | Yes | Desktop app | Visio import availability depends on the installation; primarily an SVG editor |
| Pencil Project | Website and app wireframes | Yes | Desktop app | Focuses on interface prototypes |
| Graphviz | Automatically generated relationship diagrams | Yes | Local tools or an editor integration | Requires a text description of the diagram |
| PlantUML | UML and software documentation | Yes | Local installation or an online editor | Requires PlantUML syntax; local setup needs Java |
Product links and documentation appear in the sections below. Lucidchart, Creately and Cacoo are covered separately because their free plans impose tighter limits.
What Does “Free” Actually Mean?
Free and open source means the software’s source code is available under a license that permits use, modification and redistribution. The license still has conditions, and a developer may charge for hosting, support or integrations.
Free proprietary software costs nothing to use under the developer’s terms, but does not provide the same source-code permissions. yEd is an example.
A limited free plan gives you ongoing access to part of a commercial service. Limits might apply to editable documents, shapes, exports or collaboration. A free trial is different: it provides temporary access to paid features.
For this guide, we have prioritized useful ongoing free access, a practical way to work on a Mac and clear file-format limitations.
1. draw.io: Best Free Visio Alternative Overall
For most people creating flowcharts, organization charts or network diagrams, draw.io is the best place to start. Its familiar shapes-and-connectors approach makes it a closer fit for everyday Visio work than a general graphics editor.
You can use the browser version at diagrams.net or install the Mac desktop app for offline work. The core editor is open source under the Apache 2.0 license, with no subscription required for ordinary diagramming. Paid integrations, such as some Atlassian products, are separate from the free editor.
The main caveat is file compatibility. draw.io imports VSDX files but does not export editable VSDX files. You can save an editable .drawio file or share your finished diagram as PDF, SVG or PNG. See more on draw.io supported import and export formats for precise details.
Older VSD and VDX files need conversion before importing into draw.io. Its documentation recommends converting these to VSDX first. If you cannot do that, try LibreOffice Draw.
Check an imported diagram before relying on it: complex shapes, text and connectors can look different after conversion. That makes draw.io a good option for moving your work away from Visio, but less suitable when a colleague needs the edited diagram returned in Visio’s own format.
Choose it for: General diagramming without a subscription, with the option to work offline.
Start using draw.io or read our full draw.io review.
2. LibreOffice Draw: Best for Offline Work and Older Visio Files
LibreOffice Draw is the drawing component of the free, open source LibreOffice suite. It is a useful choice if you prefer working with files stored on your Mac, particularly if you already use LibreOffice for documents or spreadsheets.
Draw can open Visio VSD, VSDX and VDX files. This makes it worth trying when someone sends you an older Visio document that draw.io cannot directly import.
The distinction is between opening a file and saving it back. Draw imports the diagram into its own editing environment. Save your editable copy in its ODG format, or export a PDF for sharing; it does not provide a Visio-format export workflow.
Draw includes connectors, flowchart shapes, layers and alignment tools, so it can handle structured diagrams as well as general illustrations. Its integration with Writer and Impress is useful when the final diagram belongs in a report or presentation.
We would choose it for individual offline work and occasional Visio imports. For a group that wants to edit a shared canvas together, one of the browser tools is a more convenient starting point. As with any conversion, check the imported layout before making extensive changes.
The official download page provides Mac downloads for Apple silicon and Intel processors.
Choose it for: A free desktop editor that can open both older and newer Visio file formats.
3. yEd Graph Editor: Best for Automatic Diagram Layouts
yEd’s strongest reason for inclusion is its automatic layout capability. If your diagram contains lots of connected boxes, you can let the software arrange them instead of positioning everything manually.
It supports flowcharts, networks, UML class diagrams and other connected structures. You can also import data from Excel or XML and export the result in formats such as PDF, SVG and PNG.
yEd is free to use, including commercially, but it is not open source. Its license governs how the application can be used and distributed.
The Mac desktop application is useful for working locally. There is also a separate browser tool, yEd Live, if you prefer to avoid installing an application.
yEd can reuse shapes from Visio VSX stencil files, but it does not directly import VSD or VSDX diagrams. Choose draw.io or LibreOffice first if you are starting with one of those files.
Choose it for: Complex flowcharts and relationship diagrams that benefit from automatic arrangement.
Excalidraw is our pick when you need to sketch an idea, explain a workflow or discuss a system with someone else. Its hand-drawn appearance suits diagrams that are still being developed.
The free editor provides shapes, arrows, text and image support, together with live collaboration. You can save an editable .excalidraw file or export an SVG or PNG. Its web app also supports offline editing, although collaboration requires a connection.
We would use it for a quick architecture discussion or workshop sketch. For detailed process documentation, a conventional diagram editor such as draw.io is a better fit.
Excalidraw is not a direct Visio file editor. Its free open source editor should also be distinguished from the separate paid Excalidraw+ service.
Choose it for: Collaborative sketches and informal diagrams.
5. Google Drawings: Best for Simple Diagrams in Google Docs
Google Drawings is worth considering if you already work in Google Drive and only need a simple flowchart, labeled illustration or organization chart.
It provides basic shapes, lines and text tools. A drawing created in Drive can also be inserted into a Google document as a linked drawing, allowing you to update the document when the original changes.
Its appeal is convenience. For a small diagram that will live in a Google document, there may be no reason to introduce another application.
The trade-off is that you do more of the drawing and arrangement yourself. We would move to draw.io for more involved process maps or network diagrams.
Google Drawings is free to use with a Google account, but it is proprietary software. It does not directly edit Visio files. Treat it as a browser option rather than choosing it for a dedicated offline Mac workflow.
Choose it for: Occasional, straightforward diagrams in a Google-based workflow.
More Open Source Visio Alternatives for Mac
If open source software is a requirement, draw.io, LibreOffice Draw and Excalidraw are the main options above. The following tools cover more specialized work: custom graphics, interface prototypes and diagrams generated from text.
Being open source does not automatically make an application a complete Visio replacement. Choose according to the type of diagram you need to create and the format you need to deliver.
Inkscape: For Custom Vector Diagrams
Inkscape is a free, open source vector graphics editor. It is useful when a diagram needs carefully designed shapes, custom typography or illustration work, with SVG as the main editable format.
We would choose it for a polished explanatory graphic or a diagram that combines illustration with labels. Creating a conventional process chart may involve more manual work than using a dedicated diagramming application.
Its documentation lists Visio formats among the available imports, but also explains that some import capabilities depend on the installation and supporting software. Do not assume every Mac installation can open every Visio file correctly. Nor should opening a diagram as vector artwork be confused with preserving all of Visio’s diagram behavior.
For routine Visio imports, we would try draw.io or LibreOffice first. Choose Inkscape when control over the finished artwork is the priority.
See the Mac installation guide or read our full Inkscape review.
Pencil Project: For App and Website Wireframes
Pencil Project is a free, open source desktop tool aimed at interface prototypes. It includes interface shapes, flowchart elements and connectors, with links between pages for illustrating how a website or application works.
The official download page offers a universal Mac installer for Intel and Apple silicon, so Pencil is an option for creating wireframes locally on either type of Mac.
Its specialist focus is the reason to choose it. If your previous use of Visio was sketching screens and navigation flows, Pencil may cover the job. For general business diagrams or exchanging Visio files, start with another tool in this guide.
Graphviz: For Diagrams Generated from Relationships
Graphviz is an open source tool that generates diagrams from descriptions written in its DOT language. You describe the items and their relationships, and a layout engine positions them.
It is particularly useful for dependency graphs, networks and diagrams generated from structured data. Changing the source description and regenerating the diagram can be more practical than rearranging a large drawing by hand. Output options include SVG, PDF and image formats.
On a Mac, the project documents installation through Homebrew and MacPorts. Once installed, it can generate diagrams locally.
Graphviz suits people comfortable working with text and technical tools. If you want to drag shapes onto a canvas, yEd or draw.io is a more approachable choice.
It is a way to create diagrams from relationships, rather than a tool for editing existing Visio files.
PlantUML: For UML and Software Documentation
PlantUML is an open source option for creating sequence diagrams, class diagrams, activity diagrams and other technical documentation from text. You describe the diagram using PlantUML syntax instead of drawing every element manually.
This approach is useful when you want to keep diagram source files alongside software documentation and track their changes in version control.
You can try it through an online editor or set up a local workflow on your Mac. A local installation requires Java, and some diagram types also need Graphviz.
We would recommend PlantUML to developers who produce technical diagrams repeatedly. Learning its syntax is less worthwhile if you only need an occasional flowchart, and it does not provide a direct Visio file-editing workflow.
Commercial Diagramming Apps with Limited Free Plans
These apps can be useful for small projects or joining a team that already uses them. Their free tiers have more restrictions than the main recommendations above.
Free-plan details checked in September 2026. Older accounts may have different allowances.
| App | What the free plan includes | Main restriction | Best reason to consider it |
|---|---|---|---|
| Lucidchart | 3 editable documents; up to 60 shapes per document | Editing imported Visio diagrams requires a paid subscription | Creating a few small diagrams in a familiar online editor |
| Creately | Unlimited canvases and collaborators; 45 items per canvas; 1 folder; 2 imports | The item and import allowances limit larger projects | Small visual collaboration projects |
| Cacoo | 6 sheets; unlimited users; 1 shared folder | Free exports are PNG only; no version history | Sharing a small set of diagrams with a team |
Lucidchart Free
Lucidchart’s free plan is suitable for creating a few small diagrams from scratch. Its allowance is three editable documents with up to 60 shapes in each, rather than unrestricted diagramming.
There is also a crucial Visio restriction: free users can import and view supported VSD, VSDX and VDX files, but editing imported documents requires a paid subscription. If free Visio editing is your main requirement, this rules out the free tier.
Read our Lucidchart review for a broader look at the editor.
Creately Free
Creately is worth considering for a shared visual workspace. Its current free-plan listing allows unlimited canvases and collaborators, but each canvas is limited to 45 items. You also get one folder and two imports.
Those limits make it more suitable for several small diagrams than one large process map. We would not choose it primarily for free Visio-file migration: the stated import allowance alone does not establish which Visio conversion features your account includes.
Read our Creately review.
Cacoo Free
Cacoo’s free plan allows six sheets, unlimited users and one shared folder. Sheets are the allowance to watch when planning a project with several pages. Free accounts export diagrams as PNG and do not include version history.
It can work for a small team that wants to share a few diagrams. If you need editable vector exports or expect your diagram collection to grow, the unrestricted tools above are better starting points.
Free Visio Alternatives: Frequently Asked Questions
Which Free Tool Should I Try for a VSD or VSDX File?
For a VSDX file, start with draw.io or LibreOffice Draw. For an older VSD or VDX file, start with LibreOffice Draw; draw.io’s current guidance requires conversion to VSDX first.
Keep the original file and inspect the converted diagram before editing. Check labels, fonts, connectors and all pages, especially if the drawing will be shared with clients or colleagues.
If you only need to read the file, see our guide to Visio viewers for Mac.
Can I Save an Edited Diagram Back to Visio for Free?
Do not assume an import feature includes Visio export. draw.io and LibreOffice Draw can import Visio drawings, but neither provides editable VSDX export. An SVG or PDF is useful for sharing the appearance of a diagram, but it does not preserve all of Visio’s shapes, data and behavior.
If returning an editable Visio file is essential, agree on the required format before choosing an application. Our main Visio alternatives guide covers more options for that scenario.
Can I Use These Tools for Work?
Free does not necessarily mean personal use only. For example, yWorks explicitly permits commercial use of yEd at no cost.
For shared work, check the practical limits as well as the price: who can edit, how many diagrams remain editable, and which formats you can export. The free-plan comparison above highlights the main restrictions for the commercial services in this guide.
Is Visio for the Web Free on a Mac?
A basic version of Visio for the web is included with eligible Microsoft 365 commercial subscriptions. If your organization already has one, you may be able to create basic diagrams in your Mac’s browser without buying a separate Visio plan. More advanced features require a suitable paid plan – see Microsoft’s Visio comparison for more.
This is an existing-subscription benefit, so we have not ranked it as a universally free alternative. See our Visio for the web review for more about using Microsoft’s browser version on a Mac.