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

x64B1A13A219206AEFB83B3329BD69A996BC746DD79207CFBE7D77E3F2494E1A99E
arm64B1A13A219206AEFB83B3329BD69A996BC746DD79207CFBE7D77E3F2494E1A99E

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
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1.12.0.1855
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1.11.5.1842
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1.11.4.1835
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1.11.3.1828
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1.11.2.1820
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1.11.1.1814
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1.11.0.1806
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1.10.6.1790
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1.10.5.1775
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1.10.4.1769
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1.10.3.1763
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1.10.2.1754
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1.10.1.1749
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1.9.4.1732
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