Viscosity is a graphical OpenVPN client for importing, creating, organizing, and controlling VPN connections with routing, DNS, authentication, automation, monitoring, and troubleshooting tools.
Viscosity manages OpenVPN connections through a graphical interface designed for everyday access and detailed configuration. Users can import existing connection profiles or create them with the built-in editor, then organize, connect, disconnect, and inspect those profiles from one place. Its workflow accommodates common authentication methods, certificates, network routing rules, and DNS preferences without requiring every setting to be entered through command-line tools. Connection status details and diagnostic logs help users understand what happens during a session and investigate failures. Viscosity is particularly useful for people who regularly access workplace networks, private infrastructure, or compatible commercial VPN services.
Viscosity is a VPN client rather than a VPN service, so it requires connection details supplied by an administrator, service provider, or personally managed OpenVPN server. Advanced controls can direct selected traffic through a tunnel, run scripts around connection events, and activate profiles under defined network conditions. Multiple connections can operate concurrently when their routes and network settings do not conflict. Authentication options vary according to the server configuration and may include credentials, certificates, hardware-backed keys, or browser-based sign-in. For an unrelated multimedia component used to improve local playback compatibility, see K-Lite Codec Pack Full. That software serves a different purpose and does not configure VPN tunnels.
Viscosity makes complex OpenVPN connection management more approachable while retaining controls needed for specialized network setups. Centralized profiles reduce the effort involved in switching among workplace, testing, and private network destinations, while import tools help users reuse configurations supplied by administrators or VPN services. Routing and DNS controls provide flexibility for deciding which resources use a tunnel and how name resolution behaves during a connection. Conditional rules and event scripts can automate repetitive actions, which is valuable for users who move between trusted and untrusted networks. Diagnostic information also makes connection failures easier to examine before escalating a problem to an administrator. Support for simultaneous tunnels can accommodate workflows that require access to separate networks, provided their routes remain compatible. Viscosity does not create a VPN service by itself, and the protection delivered by any connection still depends on the server, profile, authentication method, and policies chosen by the organization or provider.
Key capabilities and highlights.
The connection editor exposes OpenVPN profile settings through organized controls, allowing users to create or revise connections without manually assembling every directive. This makes certificate selection, server definitions, routing behavior, and other connection options easier to review and maintain.
Existing OpenVPN configurations can be imported into Viscosity, helping users begin with profiles supplied by a network administrator or compatible VPN provider. Importing preserves the intended connection foundation while allowing supported settings to be reviewed and managed through the application.
A connection can contain multiple server addresses and communication options, giving the client alternatives when establishing a tunnel. This is useful when an organization provides several gateways for availability, geographic access, or different network paths within one managed connection profile.
Routing controls can send selected networks or destinations through a VPN while leaving other traffic on its usual path. This supports split-routing scenarios, access to private resources, and more deliberate tunnel usage when the supplied network configuration permits it.
Viscosity provides controls for DNS behavior while a tunnel is active, including settings intended to reduce unintended name-resolution leaks when configured correctly. These options help align DNS requests with the connected network and troubleshoot resolution problems affecting private resources.
Connections can use credentials, certificates, PKCS#11 devices, and supported web-based authentication flows according to server requirements. This flexibility helps Viscosity work with both straightforward personal configurations and organizational deployments that rely on stronger or centrally managed identity systems.
Conditional rules can allow or block connections according to network circumstances, while scripting hooks can run actions before or after connection and disconnection events. Together, these capabilities automate recurring tasks and help profiles respond consistently as network conditions change.
Detailed connection logs expose negotiation messages, authentication progress, routing changes, and reported errors generated during a session. This evidence helps users identify incorrect settings, expired credentials, unreachable servers, or other problems before requesting assistance from a network administrator.
Browse historical releases and previous builds.
Common questions about Viscosity.
Viscosity is used to create, import, organize, and operate OpenVPN connections. It provides graphical controls for authentication, routing, DNS behavior, automation, connection status, and diagnostic logging.
No. Viscosity is a VPN client, so users need a compatible OpenVPN server and valid connection details from an administrator, VPN provider, or personally managed service.
Yes. It can import OpenVPN connection profiles, making it practical to use configurations supplied by an organization or compatible service instead of recreating every setting manually.
Yes. Multiple connections can run at the same time, although overlapping routes, DNS rules, or incompatible network settings may require adjustment to prevent conflicts.
Viscosity provides routing controls that can direct selected traffic through a VPN while other traffic follows its normal route. The exact behavior depends on the connection profile and server policies.
Viscosity is a graphical OpenVPN client for importing, creating, organizing, and controlling VPN connections with routing, DNS, authentication, automation, monitoring, and troubleshooting tools.
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