100% Free · Open Source · All Pro features included · No credit card required
Is Your PC
Actually Safe
Right Now?
REFLEX AI uses on-device machine learning to detect zero-day threats, ransomware, and AI-generated malware in milliseconds — with zero data ever leaving your device.
360° AI Sweep
Your Current Antivirus
Is Fighting Yesterday's Threats
Cybercriminals now use AI to mutate malware faster than any signature database can update. By the time your AV "knows" — your data is already gone.
Misses 68% of Zero-Day Threats on Day One
Uploads Your Files & Scans to Their Cloud
Kills Performance — 20%+ CPU During Scans
New Threat Definitions Take 24h to Arrive
In 2024, ransomware hit a business every 11 seconds. Average ransom: $2.73 million. And 60% of victims had antivirus running at the time.
AI That Thinks.
Protection That Adapts.
REFLEX watches for behavioral anomalies — processes acting suspiciously, files being encrypted, network beacons pinging home. And it stops them in milliseconds.
- On-device AI detects threats signatures never could
- Zero-knowledge — your files never leave your machine
- 84ms average response — stops attacks mid-execution
- Ransomware Shield stops file encryption before it starts
- Under 2% CPU idle — gaming and work flow uninterrupted
Everything You Need.
Nothing You Don't.
AI That Learns Your System
Behavioral profiling builds a baseline of your normal activity. Anything abnormal is flagged instantly — even on day zero.
Total Data Privacy
No telemetry. No cloud sync. No profiling. REFLEX is legally and technically incapable of accessing your files.
Built-In VPN — 25 Servers
Hide your IP, encrypt every connection, and browse without surveillance — included free with every download.
Zero-Knowledge Password Vault
Encrypted local vault stores all your passwords. Your master password never reaches any server, ever.
Numbers That Don't Lie
Certifications & Compliance
Protected in 60 Seconds
Three steps. Zero tech skills needed.
Click Download Below
Just click the download button. No sign-up, no credit card. Free and open source.
Installer Downloads Instantly
Your EV code-signed installer downloads the moment you submit.
Protected in 60 Seconds
Run the installer. REFLEX activates and starts protecting your device immediately.
Get Everything — Free
All Pro features are included at zero cost — AI threat detection, VPN, password vault, and more. No hidden charges, ever.
100% free and open source. No trial, no expiry.
Start Your Free
Download Now
Click to download. No sign-up required.
REFLEX Security for Windows
Windows 10/11 · 64-bit · 142 MB · EV Code Signed
Frequently Asked Questions
Is REFLEX AI really free forever?
Will it collect or share my data?
Will it slow down my PC?
Is the installer safe to run?
What operating systems are supported?
Every Second You Wait
Is an Unnecessary Risk
2 million people have already closed the window on ransomware and zero-day attacks. Your free copy is waiting — it takes 20 seconds to claim it.
Free forever · Open source · Windows 10/11 · No subscription