Hi summoner23, Viscosity does not have this feature I'm afraid, though it is a feature planned for a future release. In the mean time, Viscosity does support scripting, which can be used to terminate programs or even kill your connection once you disconnect from your VPN. Viscosity provides military-grade encryption to establish a secure connection between your computer and OpenVPN servers. By running its own IPv6 encryption on the client side while connecting to OpenVPN servers, you’ll benefit from 2 encryption protocols running simultaneously. One major flaw is that Viscosity doesn’t have a kill switch. Hello, i currently use TorGuard Viscosity and i'm on Mac OsX Maverick. I need to setup a good script that kill the apps in use (Popcorn Time, Stremio, Vuze,UTorrent) in the case vpn connection goes down. I checked the tutorial on knowledgebase but seems that doesn't work on my side. In the TorGuard Pro VPN software (Viscosity) click the VPN server you wish to setup this Killswitch rule on. Click the settings button and select Duplicate Connection. 3.) On the new duplicate connection right click and select the Edit button.

If you think that you’re the only user on your computer and nobody is watching what you’re doing on the PC or what kind of websites you visit, you may be wrong because there is a possibility that your Internet Service Provider or the government is monitoring your online activities. More and more users are aware of the privacy risk and are willing to spend a little bit of money in subscribing to a VPN service to protect their privacy by encrypting the Internet connection.

Once you’re on a VPN connection, all your incoming and outgoing data is encrypted and routed to the VPN server. This effectively prevents your ISP or the government from monitoring your online activities. Unfortunately nothing is perfect because there is always the possibility of a leak that will reveal your real IP address. Let’s say you’re downloading sensitive material through BitTorrent and you think that you’re safe because you’re connected to a VPN. When your VPN connection suddenly disconnects, you are instantly routed back to your normal connection and your BitTorrent client will automatically resume downloading through your direct Internet connection.

This is why some people still receive DMCA infringement notices from their ISP even though they are connected to a VPN. There are some VPN service providers like LiquidVPN that solve the problem by implementing a kill switch feature known as Liquid Lock whereby all connections are automatically blocked when it detects a disconnection. Another well known method is by terminating the selected application when the VPN disconnects. If you’ve already subscribed to a VPN service that doesn’t come with a kill switch feature, here are 5 ways to implement one yourself to prevent the potential IP leak without messing with confusing firewall configurations.

1. VPN Watcher

VPN Watcher is a lightweight application that can monitor your VPN connection. Other than that, VPN Watcher can also automatically terminate or suspend a selected application when it detects a disconnection on the monitored connection. Basically it acts as an automated kill switch to prevent your running programs from directly connecting to the Internet when your VPN connection is down.

Once you’ve setup the VPN connection, all you need to do is add an application into VPN Watcher. The added application will automatically run when VPN Watcher detects a connection to the VPN and terminates when it detects an unexpected disconnection.

VPN Watcher comes in both free and paid versions and is available for both Windows and MAC OS X operating systems. The free version of VPN Watcher is limited to only 1 controlled application and has a slightly higher checking interval at 0.5 seconds compared to 0.1 second in the paid version. Although the program is constantly monitoring the connection, VPN Watcher takes up less than 2MB of memory usage and nothing for CPU usage.

2. VPN Lifeguard

VPN Lifeguard is a free and open source portable program to prevent your running applications from connecting to an unsecured connection when your VPN connection drops out. Basically VPN Lifeguard functions quite similarly to VPN Watcher and can be quite easy to set up if the initial setup steps are followed correctly.

First you need to connect to your VPN. After connecting, run VPN Lifeguard as an administrator (Right click on the program executable file and select “Run as administrator”), and click on the Config button. The VPN Lifeguard config and options area should be able to automatically detect your gateway IP and the local IP of your VPN. Click at the number drop down menu and you can select up to 6 programs that you want VPN Lifeguard to manage. Then click the Browse button and look for the program shortcut or file. Click the close button to save the changes.

When you’re back at the program’s main graphical user interface, click the Start button and VPN Lifeguard will start monitoring your VPN connection and automatically close the managed software when the VPN connection is disconnected. VPN Lifeguard will attempt to reconnect back to the VPN connection and re-run the managed software when reconnected. VPN Lifeguard was last updated in 2013 but it works perfectly when we tested it in Windows 10. It supports the monitoring of PPTP and IPSec protocols but not OpenVPN.

3. VPNCheck

VPNCheck is not just another VPN monitoring and program management tool, but it comes with more features in an attempt to keep your computer secure when connected to a VPN service. You’ll find 2 versions of VPNCheck which are the feature limited free version and the paid PRO version with additional features such as OpenVPN support, DNS leak fix, unlimited programs support, and computer ID protection enabled.

The free version of VPNCheck allows you to monitor a PPTP VPN connection, auto closing of programs or network disabling when the VPN disconnects unexpectedly, and management of only 3 programs. You’ll also need to perform an initial setup on VPNCheck before it can work. Click on the config button, and add the programs that you want to manage. The added file can be configured to auto close or autorun from the checkboxes. The next important thing is to setup the VPN login credentials in VPNCheck so that it can auto reconnect. Enter the username and password of the VPN and the matching VPN name that is in Windows.

Once you’ve completed adding the files and setting up the VPN connection in VPNCheck, close the config window and you should be back in the main GUI. There are 2 main buttons which is Cycle IP:Task and Cycle IP:Network. If you want VPNCheck to auto close the added programs on VPN disconnection, click on Cycle IP:Task. As for Cycle IP:Network, this option will disable all network connections on your computer.

The free version of VPNCheck is available for Windows and Linux (beta) operating system while the Pro is only for Windows.

4. Simple VPN Kill Switch Batch Script

There is a manual and free way to disable all connections when your VPN connection drops in Windows without relying on any third party software. This can be achieved by removing the network adapter’s default gateway IP address after connecting to the VPN. Do take note that it is not possible to do it the other way round which is removing the default gateway IP first because that will prevent you from even connecting to the VPN server.

If your network adapter is configured to obtain an IP address automatically from a DHCP service, it may be a challenge for novice users to remove the gateway IP because it involves using the route.exe command line program. An easier way is to use a ready made batch file called Simple VPN Kill Switch created by LiquidVPN that can automatically run the commands.

All you need to do is connect to the VPN first, then run this batch script and press 1 to enable kill switch. This will remove the default gateway IP address from your network adapter. When your VPN connection unexpectedly drops out, all running applications will be prevented from reaching the Internet. To reconnect, you will need to press 2 in the script to disable the kill switch and then manually reconnect to the VPN.

5. Using Windows Task Scheduler

Instead of providing another complicated method that requires messing with the Windows Firewall or Comodo Firewall rules, an easier way is by using the Task Scheduler that is built into Windows. This method doesn’t involve installing any third party software and uses the native event checking feature in Windows which is more stable and barely uses any noticeable CPU or memory usage. All you need to do is create a new task that will automatically close your BitTorrent client software when the OS detects a termination on your VPN connection.

a) Press the Start button, type Task Scheduler and run it.

b) Click Action on the menubar and select “Create Task“.

c) Type in anything for the name of this new task that you’re going to create. Tick the checkbox for “Run with highest privileges“.

d) Go to the Trigger tab and click the New button.

e) Click the drop down menu for Begin the Task and select “On an event“.

f) Select RasClient for Source, enter the Event ID as 20226 and click OK.

g) Go to the Actions tab and click the New button.

h) Ensure that the action is “Start a program“.

i) At the program/script input box, enter taskkill.exe and at the add arguments box, enter /f /im filename.exe. You’ll need to replace the filename.exe with the executable file that you want to terminate. For example, uTorrent would be utorrent.exe, Deluge is deluge.exe, qBittorrent is qbittorrent.exe, etc. Click OK to save the changes.

k) Optionally go to the Conditions tab and check on the Power options. By default, the option “Start the task only if the computer is on AC power” is enabled and you may want to disable this setting. When your computer is on battery power, this task won’t run when your VPN connection is lost and causing your BitTorrent client to continue download through the direct Internet connection revealing your real IP address.

Viscosity Vpn Download

Additional Tip: The idea above can be extended to disabling all network connections when the VPN connection is lost instead of forcefully terminating running programs. At step (i), replace the taskkill.exe with powershell.exe. Then at the arguments box, enter Get-NetAdapter | Disable-NetAdapter -Confirm:$false.

To automatically re-enable all network adapters, you can run the following command line as administrator.

powershell.exe Get-NetAdapter | Enable-NetAdapter -Confirm:$false

You might also like:

6 Ways to Kill Multiple Windows Processes at OnceHow to Use NetCut or TuxCut to Kill or Disrupt Internet Connection Hogger in Your Network5 Ways to Kill and View Processes on a Remote Computer2 Tools to Automatic Lower Process Priority on High CPU UsageFind Hidden Command Line Silent Switches for Setup Files

Hello, I’m sure everything has been entered correctly, OCD checked multiple times. Qbittorrent is not closing after setting up the task. Does Surf Shark require something extra? Do I need to disable the Qbittorrent kill Switch, which doesn’t seem to work instantly? Does Surf Shark need to be running at the time the task is created? I only did some editing after starting VPN. It was disconnected when I created task.
I tried typing in “RasClient” then used pulldown menu. I even tried “Rasclient” in pull down menu.
Thanks.

Viscosity Vpn Killswitch Free

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GUI version of qbittorrent for linux has the setting to work (p2p exchange) when connected to specific network adapter only ie. ‘tun0’. You could check if there is similar settings entry for Windows version.

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Hey. :)

I’ve lost count of the times I’ve found myself visiting your website to read an article and/or download useful apps/utilities, but I’ve never once stopped to say thank you… and that’s just crap!

So before I head off….. Thank you Raymond so so much for all the really useful information, apps and advice! You’ve been doing this for years and I, for one, totally appreciate it. Your (sometimes almost literally) a lifesaver.

Best wishes,

Drew. :)

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There’s also VPNKS VPN Kill Switch. It’s free and comes with 4 different kill switch methods to chose from depending on how you want to set things up, check it out at vpnks.nswardh.com

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I tried solution 5 – it doesn’t work. I’m using Windows 10 with PIA VPN and uTorrent. I’m pretty sure I’ve got everything entered correctly. I tested it by starting VPN, starting a torrent then manually stopping the VPN. Utorrent did not stop.

Off to look up how to use Windows Firewall as a VPN kill switch.

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Don’t think you’ll have much luck using Windows Firewall, it has no triggers to alert you when the connection is down. You can use it to block non VPN traffic but it’s not really a “kill switch”.

The point of giving you 5 options here is if one doesn’t work there are 4 others that might…;)

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HALgooo, please be a dear and delete what doesn’t work…which is all of the options but the one’s you have to pay for. Even so, without a free trial, who’s going to take a chance because we use OpenVPN, not PPTP.

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1 of the above is open source and 2 others have both free and paid versions of the same software. Are you saying the paid programs work but their free versions don’t?

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Viscosity Vpn Killswitch Download

The task scheduler works just fine for me so far. Thanks so much

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You didn’t say how to automatically restart the program or network connection for number 4 and 5! Please give instructions. Most vpn’s disconnect regularly so it is mandatory. Thanks.

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I use VPN on Mozilla Firefox occasionally, i.e. sometimes I surf through the VPN and sometimes using my own IP address. The reason is that I visit some sites that work with subscription and I have access only with my IP address while in all other cases I opt for privacy.
In my case, can I use the mentioned kill switch tools only when I surf through the VPN?

Thank you

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I have been using PureVPN and recently they have added so many advance options that you can toggle on and off according to your need, IKS, Antivirus and many more.

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I’m with NordVPN and there’s already a kill switch included with their program. If I can give some advice to people when you look for a VPN, the included kill switch should be the first criteria for subscribing to a service.

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I disagree, think the first and very important VPN feature would be ero logging policy.

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Everybody has different priorities for their VPN software, there is no definitive right or wrong for your requirements.

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Can I use number 5 – “Task Scheduler” with open vpn to autokill the network connection? It seems the only option is rasclient but no openvpn choice.
“Additional Tip: The idea above can be extended to disabling all network connections when the VPN connection is lost instead of forcefully terminating running programs. At step (i), replace the taskkill.exe with powershell.exe. Then at the arguments box, enter Get-NetAdapter | Disable-NetAdapter -Confirm:$false.

Also, if I want to use your VPNcheck Pro with openvpn, and I normally switch between numerous vpn sites (different .opvpn config files), can i set this up in your program? It seems there is only the possibily to use 1 config file.

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Personally, I prefer to use the built-in Windows Firewall as a VPN Kill Switch.

See guide: practicalrambler.blogspot.com/2011/01/windows-7-firewall-how-to-always-use.html

So basically, when the VPN drops… The Windows Firewall will kick in and stop the program from being able to make a connection.

Way safer than using a third party app that could crash. What’s the odds of Windows Firewall Crashing and not working correctly? That would be a major bug that Microsoft would fix ASAP.

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Very happy with VPNCheck Pro. It just works. Small time developer (but that may be good)..

You can also leak your IP over the WebRTC protocol.

Do you see YOUR real IP at the site (free WebRTC leak detector).

diafygi.github.io/webrtc-ips/

The only way I have found to close this hole is a Firefox addon (extension, plugin,..) called Disable WebRTC available here (if you are serious about hiding an IP)..

addons.mozilla.org/en-US/firefox/addon/happy-bonobo-disable-webrtc/

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Hi.
Option 5 could work for me. However, I use PIA (Private Internet Access) and I can’t seem to find an event triggered by the client disconnect.

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I like solution 4 the most because pro active as already said by Ronnie so outperforms principles used for example by VPN Watcher (delay watching…). Now ifi click on “Download Simple VPN Kill Switch Batch Script” i get Invalid Download Requested. The, how to download Simple VPN Kill Switch Batch Script?

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I’m thinking number 5

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Welcome back, it’s funny as I was just going through the back pages of my bookmarks lol and saw your link, always enjoyed reading.

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Would I be correct to assume that the 4. method is the safest since it is proactive instead of reactive like the other solutions?

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Hey Ray,

Nice to get your blog again. Did you test of of these kill switches? Which one do you think is most effective?

I’m not sure if you’ve already done this or not, but an article about the best free and paid VPN services would be welcome.

Thanks

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Wow Ray, so loooong , hows you and family ?
Welcome back.

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Raymond!
Welcome Back.
How are you and the Family?

intelligencia

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Wowwwwwwwww…..Seeing this has made my day Raymond ! You still alive and kicking ! I ‘ve missed seeing your posts for the longest time.Welcome back and hope to meet you when you get a chance to come to California.

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Where were u have been
Raymond

We all were missing ur posts.

Nice to see u back on track

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Very useful.

Thanks!

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Thank you for a very interesting article – very educational.
I use a linux PC for my VPN activities and wonder if there is a way of doing similar things under Linux?
I never feel safe downloading files in Windows because of the plethora of virus and other perils!
Cheers
Peter

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On Linux just use ufw
reddit.com/r/VPN/comments/3z7ke3/this_is_my_killswitch_script_for_linux_using/

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Key Features

Cross-Platform.

Viscosity has been designed from the ground up for both macOS and Windows, using native frameworks for perfect integration.

VPN For Everyone.

Completely configure your OpenVPN connections through an intuitive interface, without any need to know complex commands.

Proven Technology.

Viscosity has been protecting users for over a decade, everyone from home users to large enterprise, with regular updates the entire time.

Traffic Statistics.

Viscosity monitors your OpenVPN connections to ensure you know all the important traffic, network and connection details in style.

DNS. Done Right.

Viscosity's powerful DNS system allows you to ensure that all DNS queries use your VPN DNS servers, or only lookups for select domains.

Enterprise Support.

Easily bundle Viscosity with settings and connections so your users are ready to get started. Create simple deployable connection profiles.

Performance Focused.

Every component of Viscosity has been designed to maximise the speed and reliability of your OpenVPN connections.

Script Everything.

Control Viscosity using AppleScript or VBScript, and call custom scripts and actions when a VPN connection changes state.

More. Much More.

Powerful authentication options, connection folders, IPv6, traffic obfuscation, advanced networking, simultaneous connections, and more!

Powerful Connections

Viscosity is a first class VPN client, providing everything you need to establish fast and secure OpenVPN connections on both macOS and Windows.

Viscosity caters to both users new to VPNs and experts alike, providing secure and reliable VPN connections. Whether remotely connecting to your workplace network, home network, VPN Service Provider, or other setup, Viscosity ensures it's done with ease and style.

Stay Informed

Viscosity has a clear and intuitive interface for monitoring your VPN connections. Whether you simply want a quick overview of your OpenVPN connections, or want to drill down to the technical network and encryption details, Viscosity has you covered.

Viscosity's unobtrusive main menu provides an instant overview of your VPN connections, making it a breeze to monitor connection details in real-time. When more information is needed, Viscosity's powerful Details window provides a stylish traffic graph and detailed connection statistics.

Intuitive Editor

Viscosity takes the complexity out of editing VPN connections, while also adding a lot of power at your fingertips. Viscosity's connection editor makes it easy to configure new VPN connections from scratch or edit existing ones. All without needing to know complex commands.

Easily configure everything from network settings to complex multi-factor authentication. Viscosity's powerful DNS modes and traffic routing are also readily accessible to ensure that traffic goes where you want. Power users are also accommodated, with scripting and advanced command support.

New to VPN?

Viscosity makes it easy for users new to VPNs to get started. Its clear and intuitive interface makes creating, configuring, or importing connections a snap. Read our detailed 'Introduction to VPNs' guide for an extensive introduction to VPNs and how to get started using Viscosity.

Experts Welcome

As well as being welcoming to new users, Viscosity caters for power and expert users. Viscosity allows for full control over VPN connections, powerful routing options, running custom scripts, controlling Viscosity using scripting, advanced configuration options, and much more.

Enterprise Ready

Viscosity has been designed for both small business and enterprise. Easily make connection bundles for your users, or completely preconfigure Viscosity with all settings and connections. You can even auto-mount shares and open apps to make life easy for your users.

Expert Features

Obfuscation

Obfuscation helps to prevent your VPN connections from being blocked or throttled by network operators, and Viscosity has powerful traffic obfuscation features built right in. Easily integrate with an existing Obfsproxy server, or run your own, to allow your OpenVPN connections to function even when Deep Packet Inspection (DPI) is being used.

Powerful Editor

Viscosity's connection editor offers unparalleled control over your OpenVPN connections. It allows users unfamiliar with OpenVPN to quickly get started, while also allowing experts to configure all aspects of their connections.

Connection Scripts

Viscosity supports automatically calling your own custom scripts on VPN connection events. Power users can write their own AppleScript, Batch, or VBS scripts to automatically perform almost any action they want. This includes tasks like opening and closing certain applications on connect or disconnect, opening web pages, mounting file shares, or controlling other apps.

Scriptable

Viscosity is fully scriptable, allowing your OpenVPN connections to be controlled using your own custom AppleScript or Batch scripts. It also allows Viscosity to be combined with other third party tools to provide functionality such as automatically when connecting to certain WiFi networks, or when in certain locations.

Complete IPv6 Support

Viscosity has complete IPv6 support. No matter whether you want to connect to your OpenVPN server over an IPv6 network, or have your VPN network support IPv6, Viscosity has you covered. Viscosity's DNS support also fully supports IPv6, including Split DNS.

Connection Folders

Easily group your OpenVPN connections into folders to make them easier to manage. This is particularly useful if you want to share credentials or scripts between multiple VPN connections, such as with a VPN Service Provider.

Full & Split DNS

Viscosity's powerful DNS system goes above and beyond other VPN clients, offering both Full and Split DNS modes. Ensure that your VPN DNS servers are used by default with Full DNS mode, or use Split DNS mode to only use your VPN DNS servers for certain domains.

Native Apps

Viscosity is written using completely native frameworks on both macOS and Windows, letting it perfectly integrate with your operating system and offer top performance. No memory and CPU hungry cross-platform frameworks are used: Viscosity offers a completely native user interface with no bloated web-application frameworks.

Simultaneous Connections

Connect to a single VPN connection at a time, or connect to multiple simultaneously. No need to switch between VPN connections when working with multiple sites remotely: Viscosity lets you connect to them at the same time and correctly routes traffic and DNS requests for each network.

Enterprise Features

Cross-Platform

Viscosity has been developed from the ground up for both macOS and Windows to provide a premier and native experience on both platforms. This makes is easy to deploy a single solution to all of your users, without the expense of having to train support staff and users in the use of multiple clients for different platforms.

Deployment Ready

Viscosity has been designed to be easy and straightforward to deploy in managed environments. Easily package Viscosity with VPN connections and settings and deploy it using tools such as Mobile Device Management (MDM) or Group Policy (GPO). Or use third-party deployment software such as Munki or Jamf to deploy Viscosity and offer self-service installation.

Bundle Connections & Settings

Viscosity can be bundled together with connections and settings, so Viscosity is ready to go as soon as it is installed, with no configuration required by end users. Viscosity also provides a number of extra customisable settings to help Viscosity fit into your networking and security environment, including the ability to change Viscosity's username and password storage behaviour and global scripting.

Supported Software

Viscosity is commercially supported software. We stand behind our products: if you run into trouble, need help, or would like advice, we are only an email away. There is no need to try your luck on mailing lists, or attempt to hunt down developers for support.

Ease of Use

Viscosity has a clear and intuitive interface for controlling VPN connections, allowing users new to VPNs and Viscosity to easily use OpenVPN on both macOS and Windows. Viscosity's Details window provides a simple interface for obtaining connection statistics and diagnostic information to pass on to support staff.

Reliability

Viscosity is in use everywhere, from large enterprise to small business, schools, universities, at home and on the road. You can use deploy Viscosity with piece of mind that it has been constantly tested and refined for almost any network environment. Viscosity has been constantly refined to automatically adjust to a huge variety of network conditions to ensure your user's VPN connections are reliable and trouble-free as possible.

Connection Profiles

Viscosity connection packages can be exported and distributed to users, providing an easy mechanism to supply users with connections (and all associated certificates, keys, and scripts) in a single package when providing a fully bundled version of Viscosity is not suitable.

Standard & Admin User Support

Viscosity can run under both administrator accounts and standard user accounts, for both macOS and Windows. This makes deploying Viscosity to machines that are not department controlled/imaged (such as machines at a user's home) much easier and simpler.

Smartcard, Token, & U2F Support

Viscosity supports PKCS#11 and FIDO Universal 2nd Factor (U2F) authentication options, allowing your users to use devices like smartcards and eTokens for authentication. You can use these devices as the sole method for authentication, or combine them with other authentication methods to create two-factor, or even three-factor, authentication. This helps you meet strict security polices, such as the Payment Card Industry Data Security Standard (PCI DSS).

Automatic Actions

Viscosity allows calling custom scripts before a connection connects, when it connects, or when it disconnects. This allows common tasks to be easily automated, such as connecting to file servers and mounting shares, opening web pages, opening applications, controlling other applications, and displaying messages to the user. Viscosity supports AppleScript scripts under macOS, and both Batch (.bat) and Visual Basic/VBS (.vbs) scripts under Windows.

Conditional Connections

Openvpn

Viscosity's conditional connections mechanism makes it easy to have Viscosity only connect to a VPN server on certain networks, or only in certain environments. A custom script can check for certain conditions (such as the wireless network the machine is connected to, the IP address, location, etc.) and decide whether to allow or terminate the connection attempt.

Big shout-out to @sparklabs! Viscosity is excellent with constant updates and flawless operation. #wortheverypenny #bestvpnclient

@daveprovine | Twitter

If you're using #OpenVPN and you're not using #Viscosity then you're doing it wrong :) @sparklabs - Thanks for an awesome app!

@systemcentersyn | Twitter

Just wanted to say that Viscosity is a great app. I'm very happy with its performance, ease of use, reliability, and design.

@CyborgInteract | Twitter

Every professional VPN solution I've used for Mac can't hold a candle to @sparklabs's Viscosity. Its by far the best

@JonoH | Twitter

Hat tip to @sparklabs for Viscosity. It's the OpenVPN client I'd write if I had to. Which I don't, because they wrote it.

@landonfuller | Twitter

I'm really pleased with Viscosity. It's an extremely elegant #Mac #OpenVPN client solution.

@noviantech | Twitter

PSA: The Viscosity OpenVPN client from @sparklabs is awesome - regularly updated and a great value. Recommended!

@_4bdi3l | Twitter

Love Viscosity from @sparklabs. Easy install, it just works. Reliable OpenVPN connections for Windows and Mac.

@clemensmol | Twitter

I just downloaded Viscosity after toiling with the various OpenVPN offerings... I must say, I have fallen in love! Keep it up!

@MilesKjeller | Twitter

All Features

Authentication

• 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

Network

• 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

Interface

• 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

Security

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

Enterprise

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

Advanced

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

Viscosity for macOS and Windows

Download Viscosity now to trial it for 30-days with no purchase necessary and no limitations. Purchase Viscosity to remove the 30-day trial limitation and help support its development. Viscosity is a one-time purchase, with no subscriptions or recurring fees.

Release Notes | Volume Licenses & Discounts | Upgrades & Extensions