Download Excalibur View
Free for one person. No account, no email address, nothing to cancel later.
Looking up the latest version…
Which one do I need?
Excalibur View for Windows
Start here if you're on Windows. This is the program you open drawings in. Install it on each computer that needs it. It installs for that person without an administrator and puts itself in the Start menu. On its own it's free, forever, for one person doing any work you get paid for.
Excalibur View for Mac
Start here if you're on a Mac. The same program, from the same source. Open the disk image and drag Excalibur View into Applications. One download runs on Apple Silicon and Intel. It's signed and notarized by Apple, so it opens on a double-click with no warning and no right-click trick.
The Office server
Only if two or more of you work off the same drawings. Install it once, on your server or any machine that stays switched on. The desktop apps on your network find it by themselves, Windows and Mac alike. Every Office feature runs free for 30 days from the first start, for any number of people, with no card. You don't need this to try the program.
Both the app and the Office server are published, source-available under the Elastic License 2.0: github.com/cngmoney88/excalibur-view. Whoever approves software in your office can read what it does before it goes on a machine, and build it themselves if that's what your policy says. What the licence allows.
Older versions and what changed in each: release history. To hear when a new one is out, write to me. It's optional and the list isn't used for anything else.
Installing it on Windows
- Run the file. It installs to your user folder and opens.
- If Windows shows “Windows protected your PC,” click More info, then Run anyway. Windows says that about anything it hasn't seen many copies of yet.
- Drag a drawing set onto the window, set the scale, and start measuring.
- Already have a tool chest? Put the .bpx or .btx file in the
profilesfolder next to the program and it'll be there when you restart.
Installing it on a Mac
- Open the .dmg and drag Excalibur View into Applications.
- Open it from Applications, not from the mounted disk image. A disk image is read-only and the program can't finish setting itself up there.
- There is no Gatekeeper warning and no right-click-then-Open trick. It's notarized by Apple, so it just opens. If you do see a warning, something is wrong with the download and you should check the hash below.
- Drag a drawing set onto the window, set the scale, and start measuring.
What it runs on
| Desktop app, Windows | Windows 10 or 11, 64-bit. Also Windows Server 2016, 2019, 2022 and 2025 with Desktop Experience, including over Remote Desktop. |
|---|---|
| Desktop app, macOS | macOS 11 Big Sur or later. One universal build for Apple Silicon and Intel. Signed with an Apple Developer ID and notarized. |
| Office server | Windows only, the same versions as above plus Server Core. Runs as a Windows service, so nobody has to stay signed in. Mac seats connect to it exactly as Windows seats do. |
| Graphics | No graphics card needed. |
| Updates | They install themselves on both, checked against my signature before they run. |
Checking what you downloaded
Run the line for your machine in the folder you downloaded to. The result should match the SHA-256 listed with the file above. Automatic updates get checked against my signing key before they install, so this is only for the first one you fetch by hand.
If a hash doesn't match, don't run the file, and tell me: hello@excaliburct.com.
Get-FileHash .\ExcaliburView.exe -Algorithm SHA256
shasum -a 256 ~/Downloads/ExcaliburView-mac.dmg