v2rayN Avalonia vs. WPF: Desktop Versions, Platform Support, and Which to Choose

The UI framework and proxy core

Avalonia and WPF handle the windows; the proxy core handles the connection. v2rayN is a desktop client for managing server lists, subscriptions, routing options, and core processes. WPF is a Windows UI framework, while Avalonia is cross-platform and runs on Windows, macOS, and Linux. On the download page, “Desktop” and “WPF” primarily distinguish these two interface implementations.

A proxy connection also depends on the client generating a configuration, starting the core, and establishing an outbound connection. To determine whether VMess, VLESS, or REALITY is supported, check the selected core and its version, node parameters, and server configuration—not just the window’s appearance. Switching to Avalonia does not change your subscription, and switching to WPF does not add protocol support.

Troubleshoot UI lag separately from websites that will not load. The former may involve graphics rendering, scaling, or the desktop session. For connection issues, first check whether the core started, whether the local port is listening, and whether the app’s traffic is reaching the proxy.

Choosing a version for Windows, macOS, or Linux

Filter by operating system first, then processor architecture, and only then compare the interfaces. Framework support for a platform does not guarantee that every release includes installers for all operating systems and architectures. Check the options currently listed on the client download page.

• Windows: Go to Settings → System → About to check your system type. Choose a package that matches your processor and system; the interface name does not indicate the architecture.
• macOS: Open About This Mac and check the chip or processor information to distinguish Apple silicon from Intel, then choose the matching architecture.
• Linux: Run uname -m to check the architecture. Common values include x86_64 for x64 and aarch64 for ARM64. Choose a package format that suits your distribution, too.

Appearance, runtime dependencies, and system integration

The two interfaces may differ in list density, menu placement, font rendering, and high-DPI scaling. Avalonia uses its own cross-platform UI framework, while WPF is more closely integrated with the Windows desktop. But font comfort and window responsiveness also depend on graphics drivers, system scaling, and the specific build, so the framework name alone does not tell the whole story.

Both versions use the .NET ecosystem, but whether you need to install a runtime depends on how the package was published. A self-contained release bundles the required runtime components; a framework-dependent release requires a compatible runtime on the system. Neither version can be assumed to work without additional dependencies, and another device’s runtime setup does not tell you whether yours meets the requirements.

Check system tray behavior separately, too. Some Linux desktop environments need a tray extension or related component. Whether the app keeps running after you close the window depends on the client settings. If the window seems to disappear, check the process, tray, and close-to-tray options before launching more instances; multiple instances can cause local port conflicts.

Migrating settings and restoring subscriptions

Before switching interface versions, save your subscription URLs and important settings, then back up your existing user data. A subscription can usually restore your server list, but may not include local routing, custom DNS, shortcuts, listening ports, or custom configuration. Saving a subscription URL alone is not a complete backup.

Data structures and storage locations can change between releases, so avoid copying an entire old folder over a new one. Cross-platform migration requires extra care: path separators, core executable paths, and permissions may differ. Use the export, import, or backup tools in the current version when available. Otherwise, keep a copy of the original data and note what you will need to recreate manually.

1. Record your current setup: Save the subscription source, active node, routing mode, and local port. If the interface has Settings → Parameter Settings, check the listening and basic options there. Exact section names may vary by version.
2. Exit the old instance: Turn off the system proxy or Tun, then exit the client. Make sure the old core is no longer using the listening port before launching the new version.
3. Restore your server list: Add the original subscription URL in the subscription manager and update it. Subscription URLs may contain access credentials, so do not include the full URL in public screenshots or logs.
4. Start with a minimal test: Select a known-working node and enable only the system proxy. Check that web pages load and review the logs, then restore routing, DNS, and Tun one at a time.
5. Keep a way to roll back: Do not delete the original data until you have finished testing the new version. To revert, exit the new instance first, then restore the old setup. Avoid letting both instances modify the system proxy at the same time.

Connection checks and port examples

“The desktop version connects, but WPF does not” does not necessarily point to a framework issue. The versions may be using different active nodes, core versions, routing modes, or listening ports. Before comparing them, align these settings, close the other instance, and test the same destination. The ports below illustrate the troubleshooting process; they are not default values for every package.

Suppose the client is configured to use local proxy port 10808. First, check whether it is listening on the loopback address. On Windows, run the command below in PowerShell. It only tests whether a TCP connection can be made to a local port; it does not test the node, DNS, or remote websites.

Test-NetConnection -ComputerName 127.0.0.1 -Port 10808

On Linux, use the command below to check for the corresponding TCP listening entry. If there is no output, check the core startup logs and configured port before changing the subscription. On macOS, use lsof -nP -iTCP:10808 -sTCP:LISTEN to see which process is listening.

ss -ltnp 'sport = :10808'

• Nothing is listening: Check for a core startup failure, configuration parsing errors, or a port conflict. Make sure you are checking the port shown in the current interface.
• The port is listening, but the browser cannot connect: Check that the system proxy points to the correct address and port, and see whether the browser has its own proxy settings.
• Only some apps bypass the proxy: Those apps may not honor the system proxy. Check their settings first, then consider using Tun.
• Only some websites have problems: Check DNS, rule matches, and node outbound logs. Do not blame Avalonia or WPF for a routing issue that affects only certain traffic.

A basic node latency test is not a substitute for testing the full app. To compare download speeds, use the same node, destination, time period, and routing settings. Without controlling for these factors, you cannot attribute a speed difference to the UI framework. This guide does not rank performance without comparable test conditions.

Common questions