We are SparkLabs.

Great apps are what we do.

Viscosity is a first class VPN client that lets you secure your network with ease & style.

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About SparkLabs

SparkLabs is a small independent company that creates powerful software for desktop and mobile. We were founded in early 2008 and we've been working on designing and developing beautiful software ever since.

We strive to bring powerful computing technologies to all users through apps with beautiful intuitive designs with a focus on network security and user privacy. We at SparkLabs take pride in developing software that our users love.

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Recent News

Viscosity For Mac & Windows: Version 1.7.8


Version 1.7.8 of Viscosity has been released for both Mac and Windows! These updates place a focus on security and reliability, with enhancements to the OpenVPN engine on macOS, and DNS reliability improvements on Windows. In addition OpenVPN 2.4 has been updated to version 2.4.5, OpenSSL to version 1.0.2o, and a number of small improvements and bug fixes are included. The Mac version includes a significant reworking of how OpenVPN connections are handled for added security. Connections... Read Post »

Viscosity For Mac & Windows: Version 1.7.7


Version 1.7.7 of Viscosity has been released for both Mac and Windows! This release includes two new features, Universal 2nd Factor (U2F) support and obfs4 obfuscation support, along with a security update and some small bug fixes and improvements. We're...
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Viscosity For Mac & Windows: Version 1.7.6


Viscosity version 1.7.6 is now available for both Mac and Windows! This update is primarily a maintenance release that includes a number of fixes and improvements, workarounds for some small macOS 10.13 bugs, and an OpenSSL update to version 1.0.2n. Version 1.7.6...
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Store and Licensing Improvements


We've been working hard to improve the experience of purchasing Viscosity, and so we're pleased to announce the improvements and changes we've made over the past year. While these are not as glamorous as feature additions to Viscosity itself, we hope these changes...
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