Estimated reading time: 2 minutes
Posted on November 27, 2025

OpenConnect Remote Access Client

OpenConnect SSL VPN

Free open-source SSL VPN client supporting multiple protocols including AnyConnect

Understanding OpenConnect VPN

OpenConnect serves as a versatile SSL VPN client supporting various protocols including Cisco AnyConnect. This cross-platform solution offers reliable VPN connectivity for both enterprise and individual users.

The client stands out for its compatibility with Cisco AnyConnect VPN servers while remaining completely open-source. Its modular design allows for extensive customization and integration with various authentication methods.

Key Features & Benefits

Protocol Compatibility

Supports Cisco AnyConnect SSL VPN, Juniper/Netscreen SSL VPN, and Pulse Connect Secure

Multi-OS Support

Available for Windows, Linux, macOS, Android, and other platforms

Enterprise-Grade Protection

Provides military-grade encryption with support for two-factor authentication

Community-Driven Development

Benefits from continuous community improvements and security audits

Download OpenConnect

Free download for Windows, Linux, macOS and other operating systems

Windows OS

Download for Windows openconnect clientopenconnect client

Linux

Red Hat/CentOS RPM packages

Download for Linux

macOS

macOS 10.15 and later

macOS Version

Installation Guide for Windows

Get Windows Package

Obtain the Windows-compatible version from the project’s official download page. The installer is typically available as a standard .exe file for easy installation.

Run Installation

Launch the downloaded installer with administrator privileges for proper system access. The installation process typically takes 2-3 minutes on modern Windows systems.

Setup Server Details

Configure the client by entering your organization’s VPN server address and credentials. Specify authentication method, certificates, and openconnect for windows any custom connection parameters required.

Connect to VPN

Select your configured connection profile and click connect to establish the VPN tunnel. Confirm successful connection through status indicators and test network accessibility.

Problem Resolution Guide

Connection Failures

Verify server address accuracy and network connectivity before attempting connection. Confirm certificate validity and authentication credentials with your network administrator.

Certificate Errors

Ensure system clock is synchronized and certificates haven’t expired. Check for self-signed certificates that may require manual acceptance.

Important: For organization-specific configurations, consult your IT department for exact connection parameters. Corporate environments may have unique authentication requirements or security policies.