Modern authenticated encryption across every app: WireGuard, OpenVPN, IKEv2, Stealth, and WSTunnel, plus current-generation TLS in browser extensions.
Our Firewall blocks all connectivity outside the tunnel before data escapes, putting an end to the IP and DNS leak circus.
Encryption means nothing if a server keeps tabs. We store no source IPs, session logs, or browsing history. Period.
256-bit authenticated ciphers: AES-256-GCM and ChaCha20-Poly1305
Hardened key exchanges backing every handshake
Perfect Forward Secrecy
Post-quantum protection is active on WireGuard connections
On every protocol we offer
For every user, on every platform
Including the free tier
Stronger Where It Actually Counts
Modern authenticated encryption across every protocol. Every packet inside the tunnel is encrypted, authenticated, and protected from tampering.
Session keys negotiated with hardened key exchanges, and WireGuard adds a post-quantum layer designed to protect against harvest-now-decrypt-later attacks.
Perfect Forward Secrecy on every session, and your WireGuard preshared key rotates every time you log in. Yesterday's traffic stays sealed forever.
There is no "Encryption Level" slider for you to mess up. Windscribe uses strong secure defaults automatically. Connect, and boom! You're secure.



ChaCha20-Poly1305 with Curve25519 handshakes and a PresharedKey slot since day one. The fastest protocol we offer. Connect on 6 different ports.
AES-256-GCM with ECP384/ECP521 key exchanges. Full-strength protection that survives the Wi-Fi-to-cellular handoff.
AES-256-GCM, SHA512 auth, and an RSA-4096 handshake. Helpful on restrictive networks. Connect on 11 different ports.
The de facto VPN standard for years, configured harder than most. Connect on 6 different ports.
Full OpenVPN encryption, wrapped again in TLS and disguised as ordinary HTTPS. Helpful on restrictive networks. Connect on 11 ports.
OpenVPN encapsulated in WebSocket frames on port 443. For networks so restrictive they only allow web traffic.
Browser Extensions
TLS 1.3 · X25519 · TLS_AES_256_GCM_SHA384
Our proxy extensions use modern TLS encryption too, so your browser traffic gets current-generation protection without pretending a proxy is the same thing as a full-device virtual private network.
Beyond the "Military-Grade" Buzzword
"Military-grade encryption" is just marketing speak for AES-256, the exact same cipher powering your banking app, WhatsApp, and half the web.
We don't treat the bare minimum as a headline feature. For Windscribe, AES-256 is just where the party starts: we add hardened protocol configs, forward-secure sessions, post-quantum WireGuard protection, and public app code.
Hardened Handshakes · Post-Quantum Hybrid KEM · Rotated Session Keys · Published Specs

Zero Leaks. Zero Escapes. Zero Excuses.
DNS queries are handled inside the tunnel. The Firewall blocks traffic outside the virtual private network connection, while browser-extension tools help prevent WebRTC from exposing your real IP.
Our Firewall is built to block connectivity outside the tunnel before leaks happen. Unlike reactive kill switches, it's designed to fail closed instead of scrambling after a drop.
We don't store source IPs, browsing history, or historical virtual private network session logs, so requests for user activity hit the same wall: we don't have that data.
Full Strength, Full Speed
It's not 2015 anymore.
Modern hardware handles AES-256 via native CPU acceleration (AES-NI / ARM Crypto), ChaCha20 is engineered from the ground up for extreme mobile efficiency, and WireGuard runs with virtually zero latency overhead. VPNs selling "lighter encryption for faster speeds" are gaslighting you to cover up their cheap server infrastructure.


Open-Source Apps

Independent Audits

Live Transparency Report
With Windscribe, Your Traffic Is Post-Quantum Protected
Defends Against "Harvest Now, Decrypt Later": Hostile actors are hoarding encrypted traffic today to crack open once quantum computers mature. We stopped that bet in its tracks.
Hybrid X25519MLKEM768 Handshakes: Our WireGuard key exchange combines classical crypto with the NIST-standardized post-quantum algorithm. An attacker has to break both.
Zero Setup, Rotated Every Login: Active by default on WireGuard, with your post-quantum preshared key rotating automatically every single time you log in.

Frequently Asked Questions About VPN Encryption
Which VPN has the strongest encryption?


Look for four things: 256-bit authenticated ciphers (AES-256-GCM or ChaCha20-Poly1305), a hardened key exchange, perfect forward secrecy, and post-quantum protection. Very few VPNs ship all four in production, and fewer still publish the full parameters so you can check. Windscribe does both.
Can AES-256 encryption be cracked?


Not by brute force, with any technology that exists. Trying all 2^256 keys would outlast the universe. Real-world attacks target implementation mistakes, key exchanges, leaks, and logging instead, which is exactly why Windscribe hardens the handshake, blocks leaks with the Firewall, and keeps no identifying logs.
Is ChaCha20 as secure as AES-256?


Yes. Both are 256-bit ciphers with no practical attacks. ChaCha20 is often faster on phones and devices without AES hardware acceleration, which is why WireGuard, our default protocol, uses it. With Windscribe, you get both, matched to the protocol that suits your device.
What does "military-grade encryption" mean?


It's a marketing phrase for AES-256; the same standard used by banks, messaging apps, and ordinary HTTPS websites. It's genuinely strong, but it's the industry baseline, not a differentiator.
What is post-quantum VPN encryption?


Protection against future quantum computers, which threaten today's key exchanges (not the ciphers themselves). The near-term risk is "harvest now, decrypt later": recording encrypted traffic today to decrypt it once quantum hardware matures. Windscribe already defends against this. The WireGuard preshared key is exchanged over TLS 1.3 using X25519MLKEM768, a hybrid of classical crypto and the NIST-standardized ML-KEM algorithm, rotated on every login.
How do I enable post-quantum encryption in Windscribe?


Update the app (desktop 2.17.9+, Android 3.93.1835+, iOS 3.9.4+), log out and log back in once on each device, and connect using the WireGuard protocol. That's it! The post-quantum key exchange runs automatically from then on.
Do I need a quantum-safe VPN now?


Quantum computers can't break encryption today. But if any of your traffic would still be sensitive in five or ten years, harvest-now-decrypt-later makes post-quantum protection worth having now, which is why we shipped it instead of scheduling it.
What is perfect forward secrecy?


Fresh encryption keys for every session, so a compromised key can never unlock your past traffic. Every Windscribe protocol supports it, and our WireGuard preshared key additionally rotates each time you log in.
Does strong encryption slow down my VPN?


Barely, on modern hardware. CPUs accelerate AES natively, ChaCha20 is built for speed everywhere else, and WireGuard keeps overhead minimal. Windscribe never asks you to weaken encryption for speed; if a connection feels slow, switch protocols or ports instead.
Which Windscribe protocol should I use?


WireGuard for speed on most networks (it's the default, and where post-quantum protection lives). IKEv2 if you switch between Wi-Fi and cellular a lot. OpenVPN, Stealth, or WSTunnel for restrictive networks that block VPNs. Stealth even encrypts your traffic twice while disguising it as ordinary HTTPS. They use different crypto stacks, but all are configured for strong security, so choose based on speed, stability, or network restrictions. You can read more about which Windscribe protocol to use here.
Does Windscribe's free plan use the same encryption?


Free accounts get the same core app security, encryption, protocols, and Firewall. The differences are things like monthly data, available locations, and some feature limits.
Can the government or my ISP break VPN encryption?


Not the encryption itself. Properly implemented AES-256 and ChaCha20 are beyond any agency's brute-force ability. What they can do is request data from your VPN provider, which is why encryption only matters alongside a no-logs policy that holds up when tested. Ours has been proven in court and through server seizures.
"WireGuard" is a registered trademark of Jason A. Donenfeld. Open Source Software Attributions.






