Proton VPN for Linux: How to Use the GUI and CLI Tools

Proton VPN is one of the most trusted privacy tools available today — and unlike a lot of other services in this space, it actually takes Linux seriously. There’s a proper GUI app, an official CLI, and real documentation to back it up. Whether you’re a desktop user who wants a point-and-click experience or a sysadmin who lives in the terminal, Proton VPN has a path for you on Linux. In this article, we’ll walk through both options in detail, cover which distributions are officially supported, and help you figure out the best setup for your workflow.

Why Proton VPN Stands Out on Linux

Most VPN providers treat Linux as an afterthought. You get a config file, a vague pointer toward OpenVPN, and a “good luck” — that’s about it. Proton VPN takes a different approach. Their Linux support is genuinely first-class, with two distinct official tools: a full graphical interface and a dedicated command-line interface. Both are actively maintained, both are open source, and both support the advanced features that privacy-focused users actually care about.

This isn’t a coincidence. Proton has a stated commitment to the open-source community, and Linux users are a natural overlap with their privacy-focused audience. If you’re curious about the broader value Proton offers, it’s worth exploring their full ecosystem — which includes mail, calendar, cloud storage, and of course VPN. And if you want to get the best price on any of it, check out the available Proton Unlimited discounts and deals before signing up.

The Two Official Ways to Use Proton VPN on Linux

Proton officially offers two tools for Linux users, and which one you reach for depends almost entirely on how you prefer to interact with your system. Neither one is a stripped-down placeholder — both are fully featured and actively developed. Here’s what each option brings to the table.

The Proton VPN Linux GUI App

The GUI app gives you a full graphical interface for managing your VPN connection — server selection, settings, one-click connect, and everything else you’d expect from a polished desktop app. It’s officially supported on the latest stable versions of Debian, Ubuntu, and Fedora, all running the GNOME desktop environment. An AUR package is also available for Arch Linux, maintained by a community contributor, with official Arch support currently in progress.

It’s worth noting that the GUI app requires gnome-keyring to store credentials securely. KDE’s KWallet may also work, but it isn’t officially supported. If you want to use split tunneling, you’ll additionally need systemd-resolved installed and running. Beyond those dependencies, setup is straightforward — Proton provides distro-specific installation guides for each supported distribution on their Linux download page.

Features Supported by the GUI App

The Linux GUI app isn’t a watered-down version of the Windows or macOS clients. It natively supports the full range of Proton VPN’s advanced features, including NetShield Ad-blocker, Kill Switch, VPN Accelerator, Moderate NAT, Port Forwarding, Custom DNS, Auto-connect at startup, IPv6, and the ability to pin servers to the system tray. In short, you’re not giving anything up by being on Linux — this is a complete experience.

How to Use Proton VPN on Linux via the CLI

If you prefer working from the terminal — or you’re managing a server without a desktop environment — the Proton VPN CLI is the right tool. It’s an officially supported command-line utility that runs directly from your Linux terminal, giving you full control over your VPN connection without any graphical interface required.

Supported Distributions for the CLI

The CLI is officially supported on the latest stable versions of Debian, Ubuntu, and Fedora. Like the GUI app, it’s also available on Arch Linux through the AUR, with official support on the way. Reports suggest it works on other distributions as well, but Proton can only guarantee full support on those three. One important limitation to be aware of: the CLI does not currently work on headless setups. It also requires both gnome-keyring and NetworkManager to function properly, so make sure those are installed before you begin.

Basic CLI Commands to Get Started

Once you’ve installed the Proton VPN CLI following the official installation guide, the basic workflow is simple. Log in with protonvpn-cli login [email protected], then connect quickly using protonvpn-cli connect for the fastest available server, or protonvpn-cli connect --cc US to connect to a specific country. Use protonvpn-cli disconnect to drop the connection, and protonvpn-cli status to check your current connection details. The CLI is efficient, scriptable, and integrates cleanly into automation workflows — making it an excellent choice for power users and developers alike.

Don’t Know Which Distro You’re Running?

If you’re not sure exactly which Linux distribution or version you’re on, open a terminal and run cat /etc/*release. In the output, look for PRETTY_NAME — that gives you the distribution name and version number. Also check ID_LIKE, which tells you if your distro is a derivative of another. For example, KDE Neon is based on Ubuntu, which itself is based on Debian. If your distro is derived from one of Proton’s officially supported distributions, there’s a good chance everything will work — though support may be more limited than on the primary supported versions.

Other Ways to Use Proton VPN on Linux

Proton strongly recommends using either the official GUI app or the CLI wherever possible — and for good reason, since both offer the tightest integration with Proton’s features and receive direct support. That said, there are situations where you might need to go a different route, and Proton acknowledges this with documentation for manual configuration options.

Manual Configuration via OpenVPN or WireGuard

You can manually configure Proton VPN on Linux using either OpenVPN or WireGuard, via NetworkManager or directly through the command line. This approach works on virtually any Linux distribution and doesn’t require the Proton-specific apps at all. The trade-off is maintenance: if Proton retires a server, you’ll need to download and update your configuration files manually. Proton publishes guides for both manual OpenVPN setup and manual WireGuard configuration on Linux, so the documentation is there if you need it.

A Note on Flatpak and Unofficial Packages

Proton does not currently support installation of their official Linux tools via Flatpak or similar packaging systems. Community contributors have published unofficial versions that you can try, but these aren’t developed or maintained by Proton, and the team can’t provide support for them. If you go that route, proceed with the understanding that you’re using something outside the official support scope. For most users, sticking with the official packages from Proton’s download page is the right call.

Proton VPN’s Free Tier Works on Linux Too

One detail worth highlighting: you don’t need a paid Proton VPN subscription to use the Linux app or CLI. Proton’s free tier is available on Linux just like any other platform, and it’s genuinely one of the most capable free VPN options out there — no data caps, no ads, no selling your data. If you’re evaluating Proton VPN before committing, Linux is a perfectly reasonable place to start. For a deeper look at what the free tier offers, check out our Proton VPN Free review — it goes into detail on what’s included and where the limitations are.

If you do decide to upgrade to a paid plan, the Unlimited tier unlocks the full server network, higher speeds, and access to the rest of Proton’s ecosystem including Drive, Mail, and Calendar. It’s a strong value proposition for anyone who wants a comprehensive privacy setup across their devices.

The Bottom Line

Proton VPN on Linux is one of the most complete VPN experiences available on the platform — full stop. You get an official GUI app for desktop users, a polished CLI for terminal enthusiasts, manual configuration options for edge cases, and solid documentation throughout. The supported distribution list is reasonable, and the features available on Linux match what you’d find on Windows or macOS.

The main limitations are fairly minor: GNOME is required for the GUI app, the CLI won’t work on headless setups, and Arch users are technically in community-supported territory for now. None of those are dealbreakers for most people. What stands out is that Proton has clearly put real effort into Linux support rather than treating it as a checkbox exercise. The open-source codebase, the active maintenance, and the feature parity all reflect genuine commitment to the platform.

Whether you’re a casual desktop user who just wants a VPN that works, or a developer who wants to script VPN connections into a workflow, Proton VPN has a well-documented, officially supported path for you on Linux. That’s rarer than it should be in the VPN space, and it’s worth recognizing.

Pros

• Official GUI app with full feature parity — NetShield, Kill Switch, Port Forwarding, and more
• Official CLI for terminal users and scripting workflows
• Supports Debian, Ubuntu, Fedora, and Arch (community-maintained)
• Both tools are open source and actively maintained by Proton
• Free tier is fully accessible on Linux with no data caps
• Manual OpenVPN and WireGuard configuration available for any distro

Cons

• GUI app officially requires GNOME — other desktop environments have limited support
• CLI does not currently work on headless setups
• Arch Linux support is community-maintained, not fully official yet

Ready to get started? Head to the official Proton VPN Linux download page for the most up-to-date installation instructions for your distribution. Whether you go with the GUI or the CLI, you’ll be up and running with one of the best privacy tools available on Linux today.

Last Updated on 29 May 2026