The free antivirus that sees through disguises.
Powered by Google's AI engine — not guesswork.
GPL v3 Open Source · Built with Python · Powered by Google Magika · View on GitHub
Why ANTIVYRE
Every feature was built with one goal: catch real threats fast, with zero false alarms and zero cost to you.
ANTIVYRE uses Google Magika's deep learning engine — the same AI that protects Gmail, Drive, and Safe Browsing — to identify what files truly are, not just what they're named.
A malware file renamed to invoice.pdf fools any signature-based scanner. ANTIVYRE reads the actual file content and exposes the deception instantly.
Watches your Downloads, Desktop, AppData, and Startup folders continuously. The moment a suspicious file appears, ANTIVYRE flags it — before you even open it.
Threats are isolated — not deleted blindly. You review each detection with full AI confidence scores, real file type, and detection reason, then decide: quarantine, delete, or ignore.
ANTIVYRE auto-updates both its malware signature database and the Magika AI engine silently in the background. Your protection is always current, no manual action needed.
No subscriptions. No premium tiers. No data collection. No ads. ANTIVYRE is free because protecting your computer shouldn't require a credit card. GPL v3 licensed forever.
The Engine Inside
Most antivirus software reads file extensions — a trivial check any attacker bypasses by renaming files. ANTIVYRE uses Google Magika, a deep learning model trained on over 100 million files across 200+ content types that analyzes actual file content, byte by byte.
Magika is the same AI system Google uses internally to route files through Gmail, Drive, and Safe Browsing — processing hundreds of billions of files every week. It was published as a peer-reviewed paper at IEEE/ACM ICSE 2025 and integrated with VirusTotal. Now it protects your PC through ANTIVYRE.
How It Works
ANTIVYRE's pipeline is designed to be thorough, transparent, and fast.
Real-time monitor watches high-risk folders. On manual scan, checks every file on your drives.
Google Magika reads actual file bytes. Hash database checked against known malware signatures.
Every threat shows the real file type, AI confidence score, and exactly why it was flagged.
You decide: quarantine safely, delete permanently, or ignore with one click per threat.
Built With
ANTIVYRE was built entirely in Python 3.12 — the dominant language in AI, security tooling, and scientific computing. Python's rich ecosystem allowed deep integration with Google Magika's AI engine, a native SQLite database for scan history, and a lightweight tkinter GUI that runs without installing heavy runtimes.
The result is a self-contained antivirus that launches in under a second, consumes minimal RAM, and runs on any Windows machine with Python installed — no bloat, no background services eating your CPU.
# ANTIVYRE — AI-powered scan engine from magika import Magika def scan_file(self, path: str): # Step 1: check hash database file_hash = md5(path) if file_hash in self.known_hashes: return ThreatResult.MALICIOUS # Step 2: Magika identifies real type result = self.magika.identify_path(path) real_type = result.output.ct_label confidence = result.output.score # Step 3: detect extension spoofing declared = Path(path).suffix.lower() if is_executable(real_type) and \ declared in SAFE_EXTENSIONS: return ThreatResult.SPOOFED return ThreatResult.CLEAN
Comparison
See how ANTIVYRE stacks up against traditional antivirus approaches.
| Feature | ANTIVYRE | Traditional AV | Free AV (Adware) |
|---|---|---|---|
| AI content-type detection | ✓ Google Magika | ✗ Signatures only | ✗ Signatures only |
| Extension spoofing detection | ✓ Always | Partial | ✗ Rarely |
| Cost | ✓ Free forever | $30–$80/year | Free + ads |
| Data collection / tracking | ✓ Zero | Extensive | Extensive |
| Open source / auditable | ✓ GPL v3 | ✗ Closed | ✗ Closed |
| Per-threat decision control | ✓ Quarantine / Delete / Ignore | Auto-delete | Auto-delete |
| AI confidence score shown | ✓ Always visible | ✗ Black box | ✗ Black box |
| Ads in interface | ✓ None | Upgrade prompts | ✗ Constant ads |
Get Protected
Free, open source, and powered by Google's AI. No strings attached.