Sandboxie is available in two flavors Plus and Classic. Both have the same core components, this means they have the same level of security and compatibility.
Whats different is the user interface the Plus build has a modern Qt based UI which supports all new features that have been added since the project went open source. The Classic build has the old no longer developed MFC based UI, hence it lacks support for modern features, these features can however still be used when manually configured in the Sandboxie.ini

Sandboxie-Plus Downloads

Sandboxie-Plus-x64-v1.9.5.exe (Windows 7, 8.1, 10, 11)
Sandboxie-Plus-ARM64-v1.9.5.exe (Windows 10, 11)
Sandboxie-Plus-x86-v1.9.5.exe (old 32-bit Windows 7, 8.1, 10)

Sandboxie-Classic Downloads

Sandboxie-Classic-x64-v5.64.5.exe
Sandboxie-Classic-x86-v5.64.5.exe

While you are downloading, please consider supporting Sandboxie-Plus with a donation

You can donate with Paypall or Credit Card using the button below. And you can also support the project with a Patreon subscription.