If you’ve ever explored VPN settings or read a tech guide, chances are you’ve seen the term OpenVPN pop up. But what exactly is it? Is it an app, a setting, or a different kind of VPN altogether? And more importantly, is it still worth using in 2025 when newer protocols like WireGuard are making headlines?
In this post, we’ll break down OpenVPN in plain language, explore why it’s still a go-to protocol for millions of users, and show you how to start using it without the technical headaches.
OpenVPN in Plain English
OpenVPN is not a VPN app — it’s a VPN protocol. Think of it as the behind-the-scenes technology that creates the secure “tunnel” between your device and the internet. Developed in 2001, OpenVPN quickly earned a reputation for being open-source, secure, and extremely versatile.
Its biggest advantage? Compatibility. Whether you’re on Windows, macOS, Android, iOS, Linux, or even setting up a VPN on a router or NAS, OpenVPN can handle it. That flexibility is why it’s still a favorite for both casual users and IT professionals more than two decades after its launch.
Why People Still Choose OpenVPN
Even with newer, faster protocols available, OpenVPN remains a trusted option. Here’s why:
1. Proven Security
OpenVPN uses TLS-based encryption combined with industry-standard algorithms like AES-256 and ChaCha20-Poly1305. It also supports Perfect Forward Secrecy, meaning even if a key is compromised, past sessions stay secure.
2. Works Almost Everywhere
It’s hard to find a platform where OpenVPN doesn’t work. From desktop and mobile operating systems to routers and embedded devices, it’s universally supported.
3. Flexible Configuration
You can fine-tune everything from encryption settings to whether the protocol uses TCP (stable) or UDP (fast). This makes it perfect for complex network environments.
4. Reliable in Restricted Networks
Because OpenVPN can run on various ports and use obfuscation, it’s better at bypassing firewalls and censorship than some lightweight protocols.
For a deeper dive into the technical details, see this guide on how OpenVPN works and why it’s trusted by millions.
When OpenVPN Might Not Be Ideal
OpenVPN isn’t flawless, and it’s not the best choice for every situation.
- Speed: Newer protocols like WireGuard often deliver faster speeds with less CPU usage.
- Setup Complexity: Manually configuring OpenVPN can be intimidating, especially if you’re dealing with .ovpn files and certificates.
- Mobile Efficiency: While it works on mobile, it can drain more battery compared to mobile-optimized protocols like IKEv2.
If you prioritize simplicity and speed over flexibility, you might prefer something like WireGuard — but if you value stability and security, OpenVPN still has a lot to offer.
Real-Life Scenarios Where OpenVPN Shines
Here are a few situations where OpenVPN’s strengths really stand out:
- Working Remotely in Restricted Environments
If you’re in a country or office network with strict firewall rules, OpenVPN’s ability to run on multiple ports can keep your connection steady. - Accessing Region-Specific Content
Pairing OpenVPN with a UK VPN server can help you securely access British streaming services, banking sites, or news while abroad. - Connecting to Home Networks Securely
Want to access your home NAS or files remotely? An OpenVPN tunnel keeps your data encrypted end-to-end. - Business Use for Remote Teams
Companies often use OpenVPN to give remote employees secure access to internal systems without exposing them to the public internet.
How OpenVPN Works (Without the Jargon)
At its core, OpenVPN does three things:
- Authenticates Both Ends
Before data is exchanged, your device and the server perform a “handshake” to confirm they’re talking to the right person. - Encrypts the Data
Everything sent between you and the VPN server is scrambled so that even if intercepted, it’s unreadable. - Transports Data Through a Secure Tunnel
All your internet traffic passes through this protected tunnel until it reaches its destination.
The result? Hackers, ISPs, and other third parties can’t snoop on your activity, according to Security.org.
The Easy Way to Use OpenVPN
Here’s the good news — you don’t have to manually configure OpenVPN to use it. Many VPN services, including X-VPN, offer one-click OpenVPN setup alongside other protocols.
With X-VPN:
- Download the app for your device.
- Go to Change Protocol and select OpenVPN.
- Tap Connect — no .ovpn file wrangling required.
Advanced users can still download OpenVPN configuration files from X-VPN for router setups, self-hosted devices, or special use cases.
Quick Start Tips for OpenVPN Users
- Choose TCP for Stability, UDP for Speed: TCP ensures each data packet arrives in order; UDP skips confirmations for faster performance.
- Enable Kill Switch: Prevents accidental data leaks if the VPN disconnects.
- Keep the Client Updated: Security patches keep you protected against new vulnerabilities.
- Use Strong Authentication: If your VPN supports it, enable 2FA or certificate-based logins, which Boston University says can protect your passwords.
OpenVPN vs Other Protocols
Here’s a quick comparison to help you decide:
| Protocol | Speed | Security | Best Use Case |
| OpenVPN | Moderate | Excellent | Stability, compatibility, bypassing firewalls |
| WireGuard | Fast | Strong | Streaming, gaming, minimal setup |
| IKEv2/IPSec | Fast on mobile | Strong | Frequent network switching |
| L2TP/IPSec | Moderate | Outdated | Simple setups, low-risk data |
Bottom line: OpenVPN isn’t the fastest, but it’s one of the most dependable.
Final Thoughts
In a VPN world that’s constantly chasing speed and convenience, OpenVPN remains the quiet professional — not flashy, but incredibly reliable. It’s the protocol you turn to when you need security, compatibility, and stability across almost any device or network.
If you’ve never tried it, start with a VPN that makes OpenVPN easy to use. You’ll get all the benefits of this battle-tested protocol without the manual setup headaches.
