Ultra-light, ultra-secure Rust browser — built by a real systems engineer
"Not AI built Nexus. A systems engineer used AI as a hammer to build it, one secure nail at a time." — Author
| Metric | Nexus | Brave/Tor Browser |
|---|---|---|
| Architecture | 100% pure Rust (memory-safe) | Built on Chromium/Firefox (millions of C++ lines) |
| RAM usage | 78 MB (3 tabs) | 400–600 MB |
| Memory safety | ✅ No buffer overflow possible | ❌ Hundreds of CVEs/year |
| Attack surface | Tiny (~1K core logic lines) | Massive |
| Code auditability | ✅ Fully auditable | ❌ Nearly impossible |
- ✅ AES-256-GCM Vault: Passwords encrypted with military-grade crypto
- ✅ Strong Argon2id KDF: 128MB RAM cost → resists brute-force attacks
- ✅ Auto-zeroize: Master password wiped from RAM instantly
- ✅ Fingerprinting spoofing in Rust: Canvas/WebGL faking cannot be bypassed
Each tab can use its own network:
| Tab Type | Network | Use Case |
|---|---|---|
| Normal | Regular internet | Daily browsing |
| Private | Cloudflare WARP | IP protection, anti-DDoS |
| Tor | Tor Network | Full anonymity |
| Work | Corporate proxy | Internal access |
👉 No need to switch browsers — just open a new tab!
- ✅ Supports Chrome Extensions (manifest v3)
- ✅ Sandboxed safely — no system access
- ✅ Easy management via UI
- ✅ Bring your OpenAI, Anthropic, or any API key
- ✅ Remembers last 40 messages
- ✅ Runs fully inside the app — no external calls
- ✅ Detects login forms → suggests saving passwords
- ✅ Generates strong 16-character passwords
- ✅ Syncs vault from Chrome, Firefox, Edge
- ✅ Only saves in normal tabs (never in Incognito)
- Startup time: 0.8 seconds
- Page load: 26ms
- Binary size: 18 MB
- Zero telemetry, zero tracking
"I didn’t use AI to be lazy. I used AI to amplify the productivity of a senior systems engineer."
This isn't "AI did everything" — this is a senior engineer using all tools to build something better, faster, safer.
- Windows 10+ / macOS 12+ / Linux
# Cloudflare WARP
curl -fsSL https://pkg.cloudflareclient.com/install.sh | bash
warp-cli registration new
warp-cli connect
# Tor Browser (auto-detected)
https://www.torproject.org/download/