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: Version 1.12

  updates

Viscosity 1.12 is now available for macOS! This is a big update, with new web authentication features, expanded SAML support, improved support for macOS 26 (Tahoe), proxy support improvements, behind-the-scenes upgrades and enhancements, and many other new features and bug fixes. Viscosity now supports web authentication using the default web browser. This enables existing browser-based sessions to be used when authenticating, saving the need to authenticate again when the same session... Read Post »

Viscosity For Mac & Windows: Version 1.11.5

updates

Version 1.11.5 of Viscosity has been released for both macOS and Windows! This update includes performance improvements, updated versions of OpenVPN (2.6.14) and OpenSSL (3.0.16), as well as many improvements and bug fixes for both platforms. In particular, we've...
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Viscosity For Windows: Version 1.11.4

updates

Viscosity version 1.11.4 is now available for Windows! It brings improvements to the DNS engine, an updated version of OpenSSL, as well as many small bug fixes and enhancements. In particular, the performance of the DNS engine for both Full and Split DNS has been...
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Viscosity For Mac: Version 1.11.4

updates

Viscosity version 1.11.4 is now available for macOS! This update focuses on improving the performance of VPN connections using a TAP (bridged) setup on macOS 15, and includes an updated version of OpenSSL, as well as many small bug fixes and enhancements. ...
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