OpenAnyFile
Works
Viewing, inspecting and verifying. You get a browsable listing of everything inside, decompressed in-browser by libarchive compiled to WebAssembly. File details, exact byte size and the detected signature are always shown.
How to open a .vhd file
You have a VHD file and nothing on your machine will touch it. Here is what the format actually is, and how to read one in about four seconds without installing anything.
What is a .vhd file?
Virtual Hard Disk is an archive format developed by Connectix / Microsoft, first appearing in 2003. It is normally produced by Hyper-V, Virtual PC.
The signature still reads 'conectix' after the company Microsoft acquired in 2003. Capped at 2 TB.
| Full name | Virtual Hard Disk |
|---|---|
| File category | Archives |
| MIME type | application/x-vhd |
| Magic bytes (file signature) | 63 6F 6E 65 63 74 69 78 |
| Developer | Connectix / Microsoft |
| Introduced | 2003 |
| Usually created by | Hyper-V, Virtual PC |
| OpenAnyFile engine | libarchive WASM engine |
| Opens without upload | Yes — parsed locally in your browser |
Open a .vhd file in your browser
OpenAnyFile routes .vhd to its libarchive WASM engine, which opens a browsable listing of everything inside, decompressed in-browser by libarchive compiled to WebAssembly.
- Open the OpenAnyFile opener in this browser — nothing to download or sign up for.
- Drag your .vhd file onto the drop zone, click to browse for it, or paste it with Ctrl+V.
- The extension is detected and the file is handed to the libarchive WASM engine.
- Your VHD opens on its own viewer page: a browsable listing of everything inside, decompressed in-browser by libarchive compiled to WebAssembly.
- Use fullscreen for a closer look, or download the file back out unchanged. Works the same on Windows, macOS, Linux, Android and iOS, because it is just a web page.
What you can and cannot do with it here
Does not work
Editing and re-saving. OpenAnyFile is a reader, not an editor — for changes you still need special software or an equivalent.
Local-only by design, not by promise
Plenty of sites promise they delete your uploads. OpenAnyFile avoids the promise by avoiding the upload. When you drop a .vhd file in, the browser grants the page temporary read access to those bytes and nothing more — the page has no path to send them anywhere. You can verify it in seconds: open DevTools, switch to the network tab, and open a file. The request list stays empty.
Frequently asked questions about VHD files
Can I open a .vhd file without installing special software?
Yes. OpenAnyFile's libarchive WASM engine runs in your browser, so you can read a VHD file with nothing installed. You get a browsable listing of everything inside, decompressed in-browser by libarchive compiled to WebAssembly. For full editing you still need the original application — this is a viewer, not an editor.
How can I check a file really is a VHD file?
Look at the first bytes rather than the extension. A genuine VHD begins with 63 6F 6E 65 63 74 69 78. Opening the file in OpenAnyFile shows that signature in the file-details panel, so a file renamed to .vhd by mistake is easy to spot.
Is it safe to open a VHD file online?
With OpenAnyFile, yes, because nothing is uploaded. The file is read locally through your browser's File API and never leaves your device, so there is no server copy to leak, log or retain. That matters most for the kind of file people are least willing to hand to a random converter site.
What is a .vhd file, exactly?
Virtual Hard Disk — an application/x-vhd format created by Connectix / Microsoft since 2003. The signature still reads 'conectix' after the company Microsoft acquired in 2003. Capped at 2 TB.
Does the same viewer handle formats related to VHD?
Yes — the same engine also opens .7z, .iso, .rar, so you can compare related files without switching tools.
Related formats
These open with the same engine, so if you have one of these sitting next to your .vhd file, it will open too: