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Sometimes—but opening a Visio file is not the same as preserving it perfectly. Diagrams.net explicitly supports importing VSDX files, while warning that imported diagrams may render differently; LibreOffice Draw may also open several Visio formats, but the available format guide is old. For a diagram that must remain editable, test a copy in the app you plan to use and compare it with the original before converting or sharing it.
Which free Visio alternatives can open Visio files?
| Option | Visio formats documented | Compatibility caveat | Cost and availability |
|---|---|---|---|
| diagrams.net | VSDX import is documented. | Its documentation warns that diagrams may render differently, and embedded EMF images in VSDX diagrams are not imported. | Available as a free diagramming option. |
| LibreOffice Draw | A LibreOffice 5.1-era guide lists VDX, VSD, VSDM, and VSDX as formats Draw can open. | The format guide is old and does not establish faithful conversion. Check the current version with a representative file. | LibreOffice is a free office suite. |
| Visio for the web | VSDX is supported; VSD is not. | Microsoft says some complex diagrams created in Visio desktop may not open. | Microsoft describes web Visio availability for Microsoft 365 business subscribers; it is not a universally free standalone alternative. |
Sources: diagrams.net import guidance, diagrams.net diagram differences after VSDX import, LibreOffice 5.1-era format guide, and Microsoft’s Visio for the web information.
What can change when you import a VSDX file?
Visio and diagrams.net use different file models and rendering environments, so an imported diagram can look different even when the import succeeds. Diagrams.net specifically notes that embedded EMF images in VSDX diagrams are not imported. That limitation can leave a diagram incomplete if an embedded image is important to its meaning.
For any candidate app, compare the opened copy with the original. Check text and wrapping, fonts, embedded images, shape and connector placement, page layout, and interactive behavior such as links or other diagram-specific elements. These are sensible inspection points, not a guarantee that every listed feature will fail.
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#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
How to convert a Visio diagram without risking the original
- Keep the source unchanged. Make a separate copy of the VSD or VSDX file before importing or converting it.
- Choose a candidate based on the extension. For VSDX, diagrams.net has documented import support. For older VSD files or a complex diagram, note that Visio for the web does not support VSD and may not open some complex desktop diagrams. LibreOffice Draw is another candidate, but verify current-version behavior rather than relying on its older format guide.
- Open the copy and inspect the result. Compare it with the original at the same zoom and page size. Check the text, images, shapes, connectors, and any behavior collaborators depend on.
- Save a converted file only after review. Confirm that the recipient can open the chosen editable format, and retain the original Visio file as a fallback.
- Use a fixed-view export if editing is unnecessary. Diagrams.net documents PNG, SVG, and PDF export options. An export is useful for viewing, but it does not preserve full editability; keep a native editable copy separately.
When is a free alternative good enough?
- For a simple diagram that needs minor edits: a trial import may be sufficient if the text, layout, and visual elements survive inspection.
- For a complex or business-critical diagram: do not assume that a successful open means faithful conversion. Test representative files individually and keep the original available.
- For read-only sharing: provide a PDF or image export when the recipient only needs to view the diagram, and keep an editable source file for future changes.
No universal lossless conversion is established by the format documentation. Compatibility depends on the file and on what the recipient needs to preserve, so test before migrating a collection of diagrams.
Quick Recap
Bestseller No. 5
Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Rank #2
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
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