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How we tested
We used each tool over 3 months with real accounts. We evaluated signup flow, core features, support responsiveness, and pricing transparency. We never accept payment for positive reviews.
Read our full methodology →Public Wi-Fi is everywhere, and so is the risk. When you connect to an open network at a coffee shop, airport, or hotel, anyone on that network can potentially intercept your traffic. A VPN solves this by encrypting everything between your device and the internet.
But not all VPNs are equal. Here are the ones that actually protect you on public Wi-Fi.
What we tested
We used each VPN on real public Wi-Fi networks — hotels, cafés, and airports — over three months. We measured connection stability, speed on shared networks, and reliability when switching between networks.
What to look for in a public Wi-Fi VPN
Three things matter most:
- Strong encryption — AES-256 is the standard. Anything less isn’t worth your time.
- A kill switch — If the VPN drops, the kill switch prevents your real IP from leaking.
- Speed — A slow VPN makes you want to turn it off. Fast servers matter.
Our top picks
NordVPN — Best Overall
NordVPN is the fastest VPN we’ve tested, which matters when you’re on a slow public connection. It uses AES-256 encryption, has a reliable kill switch, and offers a feature called “Double VPN” that routes your traffic through two servers for extra protection.
In our hotel Wi-Fi test, NordVPN held a steady connection for most of a four-hour work session, though it dropped twice. Reconnection was automatic and took about 3 seconds.
Pros:
- Fastest speeds in our testing
- Strong encryption and independent audits
- Reliable kill switch
- Works well on public Wi-Fi
Cons:
- Only 10 devices per account
Surfshark — Best Value
Surfshark offers unlimited device connections on a single account, which makes it the better choice if you travel with multiple devices. The encryption and kill switch are both solid.
In our hotel test, Surfshark held steady for the full four-hour session without a single drop. It’s slightly slower than NordVPN but more stable on unreliable networks.
Pros:
- Unlimited devices
- Lower price
- Clean, easy-to-use apps
Cons:
- Slightly slower than NordVPN
Frequently Asked Questions
Are free VPNs safe to use on public Wi-Fi? Most free VPNs are not safe. Many sell user data or inject ads. If you need a VPN for public Wi-Fi, use a paid one with a clear privacy policy and independent audits.
Which VPN is fastest on public Wi-Fi? NordVPN was fastest in our tests, though the gap narrows on slow public networks. Speed matters less than stability when the network itself is unreliable.
Do I need a VPN on public Wi-Fi if the site uses HTTPS? Yes. HTTPS protects the specific site you’re on, but a VPN protects everything — including metadata about what you’re browsing. Both matter.
How do I use a VPN on public Wi-Fi?
- Connect to the public network
- Open your VPN app and connect to the nearest server
- Verify your IP has changed (use a site like whatismyipaddress.com)
- Browse normally — all traffic is now encrypted
The Bottom Line
If you use public Wi-Fi regularly, a VPN is the single most effective step you can take. Both NordVPN and Surfshark offer 30-day money-back guarantees, so you can test them risk-free.
About the author: Dawood is the Founder & Lead Reviewer of StackCompare.Learn more about our testing process →