Sandboxie Plus 1.3.1 / Classic 5.58.1

Sandboxie Plus

Run programs in a sandbox to prevent malware from making permanent changes to your PC.

Sandboxie allows you to run your browser, or any other program, so that all changes that result from the usage are kept in a sandbox environment, which can then be deleted later.

Sandboxie is a sandbox-based isolation software for 32- and 64-bit Windows NT-based operating systems. It is being developed by David Xanatos since it became open source, before that it was developed by Sophos (which acquired it from Invincea, which acquired it earlier from the original author Ronen Tzur). It creates a sandbox-like isolated operating environment in which applications can be run or installed without permanently modifying the local or mapped drive. An isolated virtual environment allows controlled testing of untrusted programs and web surfing.

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. What's 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 1.3.1 / Classic 5.58.1 release notes:

This build adds 2 new isolation mechanisms to increase security of hardened boxes, hence boxes previously designated hardened will now be downgraded in the UI to normal, and the hardened icons will be used to the new box type.
The first isolation mechanism "SysCallLockDown=y" limits the amount of ntdll syscalls which are executed with the original process token to a list of known approved syscalls
The second isolation mechanism "RestrictDevices=y" leverages rule specificity to limit the accessible driver/device endpoints to a list of known required endpoints plus whatever the user opens using the resource access rules.

If you have issues with an update installation, just uninstall the previous version keeping the sandboxie.ini and reinstall the new build.

Sandboxie Plus 1.3.1 / Classic 5.58.1 changelog:


  • added ability to switch fusion theme independently of the dark theme
  • added ability to download updates from the support page
  • added missing system calls to the hardened box type 88bc06a b775264 04b2377 (thanks Mr.X)
  • added search box to the Plus UI Settings and box option dialogs #2134
  • added Korean translation to the Plus UI #2133 (thanks VenusGirl)
  • added grouping to sandman tray menu #2148


  • improved info label
  • the look of vintage mode is even more vintage
  • reloading the configuration with the Sandman command "Options -> Reload ini file" now updates the list of approved syscalls
  • made rule specificity more specific, now a rule with less wildcards overrules a rule with more wildcards -- Note: tailing wildcards are evaluated separately.


  • fixed issue with displaying sandbox configuration #2111
  • fixed flashing issue when switching views #2050
  • fixed inconsistencies with various checkboxes in the Plus UI ef4ac1b 06c89e3
  • fixed a certificate validation issue 238cb44
  • fixed issue with "UseRuleSpecificity" setting #2124 file.c#L965-L966

Download: Sandboxie Plus 1.3.1 (64-bit) | Sandboxie Plus 1.3.1 (32-bit) ~16.0 MB (Open Source)
Download: Sandboxie 5.58.1 Classic (64-bit) | Sandboxie 5.58.1 Classic (32-bit) ~3.0 MB
View: Sandboxie Website | Sandboxie Plus Home Page | GitHub | Release Notes

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