Viscosity

SparkLabs Pty Ltd·SparkLabs.Viscosity

A first class OpenVPN client that lets you secure your network with ease & style.

winget install --id SparkLabs.Viscosity --exact --source winget

Latest 1.13.0.1877·July 7, 2026

Release Notes

added Enhanced Settings window design on Windows 11 added Enhanced main menu design added Connection performance and throughput improvements added Support for modern PKCS#11 URI scheme when specifying a token identity improved Main menu scrolling and mouse wheel support improved Dark mode improvements for the Settings window and connection editor improved Single adapter now renamed to match the active VPN connection improved Settings window responsiveness improved when using CPU rendering improved PKCS#11 certificates can now match on additional details improved PKCS#11 identity selection menu improved improved Support for CloudConnexa Device Identity Verification and Enforcement updated OpenVPN updated to version 2.6.21 updated OpenSSL updated to version 3.5.7 fixed Resolves issue where the menu may not reflect the updated order of sorted connections fixed Resolves PKCS#11 failing on reconnects after a token signing error has occurred fixed Resolves issue where DNS servers or domains sent via IPv6 RA may be ignored fixed Resolves DHCP failing if the connection has used static assignments previously fixed Resolves rare issue where DNS setup could stall for an extended period fixed Resolves issue where a pushed MTU may override a locally set value fixed Resolves a rejected TCP connection attempt not being immediately processed fixed Resolves failed TCP connection attempts ignoring a reconnect delay value fixed Resolves incorrect connection time after system time changes fixed Various bug fixes and enhancements removed Legacy OpenVPN TAP Adapter support removed removed Windows 10 version 21H1 and older are no longer supported

Installer type: inno

ArchitectureScopeDownloadSHA256
x64DownloadB1A13A219206AEFB83B3329BD69A996BC746DD79207CFBE7D77E3F2494E1A99E
arm64DownloadB1A13A219206AEFB83B3329BD69A996BC746DD79207CFBE7D77E3F2494E1A99E

Details

Homepage
https://sparklabs.com/viscosity/
License
Proprietary
Publisher
SparkLabs Pty Ltd
Support
https://sparklabs.com/support/
Privacy Policy
https://sparklabs.com/company/legal/#privacy
Copyright
© 2026 SparkLabs Pty Ltd
Moniker
viscosity

Tags

networkopenvpnvpn

Older versions (15)

1.12.1.1857
ArchitectureScopeDownloadSHA256
x64Download3B24196980A6D2675B80E447C3368475B709914D42861E1C8ABA4ADF4E469138
arm64Download3B24196980A6D2675B80E447C3368475B709914D42861E1C8ABA4ADF4E469138
1.12.0.1855
ArchitectureScopeDownloadSHA256
x64DownloadC5F77698ABD47C20CED8D33913CAB073130B7F0D5786D8F773A65E60020C03AB
arm64DownloadC5F77698ABD47C20CED8D33913CAB073130B7F0D5786D8F773A65E60020C03AB
1.11.5.1842
ArchitectureScopeDownloadSHA256
x64DownloadDCF40C49EC8E111426A76E477D1140DEC311785FA6B31CA58C97F99B1DE9B20E
arm64DownloadDCF40C49EC8E111426A76E477D1140DEC311785FA6B31CA58C97F99B1DE9B20E
1.11.4.1835
ArchitectureScopeDownloadSHA256
x86Download8FB2B6115318363843573E7AF3F0BFC21220C492D7B7435E645A16DF01634C52
x64Download8FB2B6115318363843573E7AF3F0BFC21220C492D7B7435E645A16DF01634C52
arm64Download8FB2B6115318363843573E7AF3F0BFC21220C492D7B7435E645A16DF01634C52
1.11.3.1828
ArchitectureScopeDownloadSHA256
x86DownloadC1D6840B490BE6C14E8D8DBD804658F9C6AD7DB58A35FFC0F3A2BDA03CA26DF3
x64DownloadC1D6840B490BE6C14E8D8DBD804658F9C6AD7DB58A35FFC0F3A2BDA03CA26DF3
arm64DownloadC1D6840B490BE6C14E8D8DBD804658F9C6AD7DB58A35FFC0F3A2BDA03CA26DF3
1.11.2.1820
ArchitectureScopeDownloadSHA256
x86Download570DE1BE13694EF39CA6DF4418E56E9B3590A8A5A9367F7618C44A924E7BD3BA
x64Download570DE1BE13694EF39CA6DF4418E56E9B3590A8A5A9367F7618C44A924E7BD3BA
arm64Download570DE1BE13694EF39CA6DF4418E56E9B3590A8A5A9367F7618C44A924E7BD3BA
1.11.1.1814
ArchitectureScopeDownloadSHA256
neutralDownloadF394122EF536D2D921D7C557EBB4A203347424ACA0F01013E07BC7E96F4DD493
1.11.0.1806
ArchitectureScopeDownloadSHA256
neutralDownloadDDF27CC75B2EB7FC9BFFBD62A02A87C3E310042D60F62D818112C6EA46448D9C
1.10.6.1790
ArchitectureScopeDownloadSHA256
neutralDownloadDD7E9856EF17F0965DA88E195B4F87016AABB5A96B74C37A74C2949219CE6935
1.10.5.1775
ArchitectureScopeDownloadSHA256
neutralDownload0EE6821132F610A52A3D28EC92C52B2C43870C66C8BE74408F3ACBD47BE70C87
1.10.4.1769
ArchitectureScopeDownloadSHA256
neutralDownloadD963DED2CF7BBE9A80798B3104C989824E04FCBCBB77EE4550BDA3CE7C3963A1
1.10.3.1763
ArchitectureScopeDownloadSHA256
neutralDownloadE7FA501D773F8631152AD8D5FD06B74D40FC6CC99D28CEE4B82B6B063DADC88E
1.10.2.1754
ArchitectureScopeDownloadSHA256
neutralDownload1E7CC66A3019F77F8857DC21E2BD049EF5CEB80D0D839878ABC601B723ED7002
1.10.1.1749
ArchitectureScopeDownloadSHA256
neutralDownloadBE6F7123B76DD46DFA7A651D4A5379EFA1CE8C8E886B6C1023B2586D09C02638
1.9.4.1732
ArchitectureScopeDownloadSHA256
neutralDownloadD48A57CD94EAF46619DD135AD24E382C7144CCFDA0FF20B9FD66E3F9F55078C8