A first class VPN client that lets you secure your network



  -  16.6 MB  -  Trial
  • Latest Version

    Viscosity 1.11.2 LATEST

  • Review by

    Michael Reynolds

  • Operating System

    Windows Vista / Windows 7 / Windows 8 / Windows 10 / Windows 11

  • User Rating

    Click to vote
  • Author / Product

    SparkLabs Pty Ltd. / External Link

  • Filename

    Viscosity Installer 1.11.2.exe

Viscosity (OpenVPN Client) is a versatile and powerful VPN client software designed for Mac and Windows users. It stands out in the crowded VPN market with its user-friendly interface, robust feature set, and exceptional performance. It simplifies the process of setting up and managing VPN connections, making it an ideal choice for both novice and experienced users.

Key Features

Cross-Platform Compatibility
It supports both Mac and Windows, ensuring seamless VPN connectivity regardless of your operating system. This cross-platform functionality is a significant advantage for users who require VPN access on different devices.

Easy Configuration
Setting up VPN connections with the app is a breeze. It provides an intuitive interface for configuring and managing connections, including support for OpenVPN profiles, which are widely used for secure connections.

Advanced Connection Options
It offers a wide range of advanced connection options, including DNS and route management, custom scripts, and proxy support. These features make it an excellent choice for users with specific networking requirements.

Robust Security
Security is paramount when it comes to VPNs, and the program delivers with strong encryption and authentication options. It supports OpenVPN's best practices for secure communication.

Smart Notifications
It keeps users informed with smart notifications. You can configure alerts for various events, such as connection drops or successful connections, ensuring you stay aware of your VPN's status.

Auto-Start and Connection Profiles
The software allows you to set up auto-start preferences and create multiple connection profiles, making it easy to switch between different VPN servers or locations.

Split Tunneling
Viscosity's split tunneling feature lets you choose which traffic should go through the VPN and which should bypass it, enhancing flexibility and performance.

Proxy Support
For users who require additional anonymity or need to access geo-restricted content, it supports proxy connections alongside VPNs.

All Features


Username & Password
Public Key Infrastructure (PKI) & PKCS#12
Shared Secret
PKCS#11 Token & Smartcard
FIDO Universal 2nd Factor (U2F)
One Time Password (OTP)
Dynamic & Static Two Factor

Simultaneous Connections
Full & Split DNS Modes
Connect via HTTP or SOCKS Proxy
Traffic Obfuscation
DHCP IP, DNS, And Route Assignment
Complete IPv4 and IPv6 Support
Automatic & Manual Proxy Settings
Powerful Traffic Routing Options
Intelligent Server Selection & Fallback

Powerful Connection Editor
Traffic Graph & Statistics
Unobtrusive Status Icon & Menu
Customisable Menu Icons
Customisable Menu Quick Statistics
Connection Folders & Shared Credentials
OpenVPN Version Selection
Performance & Integration

Native Implementation for Each Platform
Low CPU & Memory Usage
Reliable OpenVPN Connections
Automatically Disconnect on Inactivity
Automatically Reconnect on Disconnect
Automatically Reconnect on Network Availability
Automatically Disable Time Machine Backups

Latest Cipher & Digest Support
Sandboxed OpenVPN & Scripts
Keychain & Windows Password Store Integration
IPv6 Leak Protection

Bundling Connections & Preferences
GPO Group Policy Deployment
Connection Importing & Exporting
Admin Rights Not Required for User Operation

Conditional Connections
Control Viscosity using AppleScript
Control Viscosity using Scripts or Command Line
Run Scripts on Connection Events
Advanced Configuration Commands

User Interface

It boasts an intuitive and user-friendly interface. Upon launching the application, users are greeted with a straightforward dashboard that provides quick access to connection profiles, preferences, and notifications. The clean and organized design makes it easy for both beginners and experienced users to navigate the software without any hassle.

Installation and Setup

Installing the tool is a straightforward process. Users can download the application from the official website or FileHorse and follow the step-by-step installation wizard. Setting up a VPN connection is equally user-friendly, with the software guiding you through the process of importing or creating OpenVPN profiles. The well-documented setup process ensures that even users new to VPNs can get started without any difficulty.

How to Use

Import or Create Profiles: Begin by importing your existing OpenVPN profiles or creating new ones within the app.

Configure Preferences: Customize your VPN connection by configuring preferences such as auto-start options, notifications, and split tunneling settings.

Connect to VPN: Simply select your desired VPN profile and click "Connect." It will handle the connection process seamlessly.

Monitor and Manage Connections: The dashboard provides real-time information about your connection status. You can also disconnect or switch profiles with ease.

Advanced Settings: For those with specific needs, explore Viscosity's advanced settings, including DNS and route management, proxy support, and custom scripts.


Can Viscosity be used on both Mac and Windows?
Yes, the app is compatible with both Mac and Windows operating systems, making it versatile for users across different platforms.

Is it difficult to set up a VPN connection with the app?
No, it offers a user-friendly setup process, allowing you to import existing profiles or create new ones with ease. Detailed documentation is available for assistance.

What encryption and security options does Viscosity support?
It supports industry-standard encryption and authentication options used in OpenVPN, ensuring a high level of security for your VPN connections.

Can I use Viscosity alongside a proxy server?
Yes, it supports proxy connections in addition to VPNs, providing extra versatility for users who require both types of connections.


ExpressVPN: For users who want a VPN service with an integrated client and a wide range of server locations, ExpressVPN is a popular choice.

NordVPN: Renowned for its security features and large server network, NordVPN offers a dedicated application for various platforms.

Private Internet Access (PIA): PIA offers a user-friendly VPN client with robust security features and competitive pricing.

OpenVPN Connect: Secure all data communications and extend private network services.


Single User License: $14 USD (one-time payment) for personal use on one computer.

Volume Licensing: Discounts are available for multiple licenses, making it a cost-effective solution for businesses and teams.

Viscosity's pricing is competitive, especially considering its feature set and ease of use.

System Requirements

Windows: Compatible with Windows 7, 8, 10 and 11.

macOS: Compatible with macOS 10.9 (Mavericks) and later versions.

  • User-friendly interface.
  • Cross-platform support.
  • Easy setup and configuration.
  • Advanced networking options.
  • Competitive pricing.
  • Limited support for Linux.

Viscosity for PC is an exceptional VPN client software that excels in simplicity, performance, and security. Its cross-platform compatibility, user-friendly interface, and advanced features make it a top choice for individuals and businesses alike. With the tool, you can trust that your VPN connections are both secure and straightforward to manage.

While it may not have a mobile version, its versatility and affordability more than make up for this limitation. Whether you're a VPN novice or an experienced user, Viscosity is a solid choice for all your VPN needs.

Note: 30 days trial version.

Also Available: Download Viscosity for Mac

  • Viscosity 1.11.2 Screenshots

    The images below have been resized. Click on them to view the screenshots in full size.

    Viscosity 1.11.2 Screenshot 1
  • Viscosity 1.11.2 Screenshot 2
  • Viscosity 1.11.2 Screenshot 3
  • Viscosity 1.11.2 Screenshot 4

What's new in this version:

- OpenSSL updated to version 3.0.14

- Resolves rare BSOD at computer sleep when using certain filter drivers
- Various bug fixes and enhancements