Official desktop installers for SecureBit Chat - the world's most secure P2P messenger
| Version | Architecture | Download |
|---|---|---|
| Windows 10/11 | x64 (NSIS Installer) | SecureBit Chat_0.1.0_x64-setup.exe |
| Version | Architecture | Download |
|---|---|---|
| macOS 11+ | Universal (Intel + Apple Silicon) | SecureBit.Chat_0.1.0_x64.dmg |
| Distribution | Format | Download |
|---|---|---|
| Universal Linux | AppImage | SecureBit Chat_0.1.0_amd64.AppImage |
** Coming in Q1 2026**: Official distribution via Windows Store, Mac App Store, and Snap Store
SecureBit Desktop applications are built on a transparent security architecture that separates security-critical code from platform-specific UI:
┌─────────────────────────────────────────┐
│ Desktop Application (Proprietary) │
│ • Native UI Components │
│ • Platform Integrations │
│ • System Notifications │
│ • Auto-update System │
└──────────────┬──────────────────────────┘
│ Uses
▼
┌─────────────────────────────────────────┐
│ SecureBit Core (Open Source) │
│ • All Cryptographic Operations │
│ • P2P Protocol Implementation │
│ • Key Exchange & Verification │
│ • End-to-End Encryption │
│ • WebRTC Security Layer │
└─────────────────────────────────────────┘
The entire security foundation is open source and auditable:
Complete cryptographic engine with:
- ECDH key exchange implementation
- DTLS security layer
- SAS verification protocol
- ASN.1 validation
- WebRTC security primitives
- All encryption/decryption logic
- Quantum-resistant cryptography roadmap
Full web version source code:
- Complete UI implementation
- User interface patterns
- State management
- P2P connection logic
- All application features
What's Proprietary (UI Layer):
- Platform-specific native UI components (Windows/macOS/Linux)
- System integration code (menu bars, notifications, file pickers)
- Auto-update infrastructure and delivery system
- Platform-specific performance optimizations
- Branding and design assets
What's Open Source (Security Layer):
- 100% of cryptographic operations
- 100% of protocol implementation
- 100% of key exchange and verification
- 100% of encryption/decryption
- All security-critical components
This architecture follows industry best practices used by:
| Project | Model | Example |
|---|---|---|
| Telegram | Open protocol, closed desktop UI | Desktop apps proprietary, protocol open |
| Signal | Open protocol, desktop wrapper | Core OSS, desktop builds proprietary elements |
| Visual Studio Code | Open core, proprietary builds | OSS core, Microsoft builds with additions |
| Proton Mail | Open crypto, proprietary UI | Crypto libs open, apps closed |
Benefits of this approach:
- Full Security Auditability - All crypto code can be reviewed
- Business Sustainability - Platform development requires resources
- Better User Experience - Native integrations improve UX
- Faster Development - Focus resources on security and features
- Trust Through Transparency - Critical code is verifiable
You have complete access to audit:
# Clone the cryptographic core
git clone https://github.com/SecureBitChat/securebit-core.git
# Review all security-critical code
cd securebit-core
grep -r "encrypt\|decrypt\|key\|signature\|verify" src/
# Run the test suite
npm install
npm test
# Build and test locally
npm run buildAvailable for auditing:
- Full cryptographic implementation
- Protocol specification and documentation
- Key exchange mechanisms
- Encryption algorithms and parameters
- Authentication and verification logic
- Network security layer (WebRTC/DTLS)
- All security-relevant APIs
Not needed for security auditing:
- Platform UI rendering code
- Window management logic
- System notification formatting
- Auto-update download mechanism
- Theme and styling systems
Key Principle: If it touches your messages, keys, or connections - it's open source. If it draws buttons or manages windows - it's not security-critical.
All releases are cryptographically signed and verifiable:
# Verify digital signature
Get-AuthenticodeSignature ".\SecureBit Chat_0.1.0_x64-setup.exe"
# Expected output:
# SignerCertificate: CN=SecureBit Inc.
# Status: Valid# Verify code signature
codesign -dvv "/Applications/tauri-webrtc-chat.app"
# Check notarization
spctl -a -vvv -t install "/Applications/tauri-webrtc-chat.app"
# Expected: "accepted"# Verify AppImage signature (if provided)
gpg --verify "SecureBit Chat_0.1.0_amd64.AppImage.sig" "SecureBit Chat_0.1.0_amd64.AppImage"
# Verify SHA256 checksum
sha256sum -c SHA256SUMS.txt- Download
SecureBit Chat_0.1.0_x64-setup.exe - Run the NSIS installer
- Follow the installation wizard
- Launch from Start Menu or Desktop shortcut
Installation Location: C:\Program Files\SecureBit Chat\
First Launch:
- Windows may show SmartScreen warning (click "More info" → "Run anyway")
- Grant permissions for network access if prompted
- Application will check for updates automatically
- Download
tauri-webrtc-chat.app.zip - Unzip the archive (double-click or use
unzipcommand) - Drag
tauri-webrtc-chat.appto Applications folder - First launch: Right-click app → "Open" (bypasses Gatekeeper)
Installation Location: /Applications/tauri-webrtc-chat.app
First Launch:
- macOS may show "unidentified developer" warning
- Right-click → Open (first time only)
- Grant microphone/camera permissions if needed
- Grant network access if prompted
Troubleshooting:
# If app won't open, remove quarantine attribute
xattr -d com.apple.quarantine /Applications/tauri-webrtc-chat.app
# Or allow in Security & Privacy settings
# System Preferences → Security & Privacy → General → "Open Anyway"# Download
wget https://github.com/SecureBitChat/securebit-desktop/releases/latest/download/SecureBit.Chat_0.1.0_amd64.AppImage
# Make executable
chmod +x SecureBit\ Chat_0.1.0_amd64.AppImage
# Run
./SecureBit\ Chat_0.1.0_amd64.AppImage
# Optional: Integrate with system (creates desktop entry)
./SecureBit\ Chat_0.1.0_amd64.AppImage --appimage-extract
sudo mv squashfs-root /opt/securebit-chat
sudo ln -s /opt/securebit-chat/AppRun /usr/local/bin/securebit-chatAlternative: Run directly without extraction
# Move to a permanent location
sudo mv "SecureBit Chat_0.1.0_amd64.AppImage" /opt/securebit-chat.AppImage
# Create desktop entry
cat > ~/.local/share/applications/securebit-chat.desktop << EOF
[Desktop Entry]
Name=SecureBit Chat
Exec=/opt/securebit-chat.AppImage
Icon=securebit-chat
Type=Application
Categories=Network;InstantMessaging;
EOFInstallation Location: User's choice (AppImage is portable)
| Channel | Status | Availability | Updates | Notes |
|---|---|---|---|---|
| GitHub Releases | ✅ Available Now | Immediate | Manual/Auto | Direct download, latest features |
| Windows Store | 🔄 Coming Q1 2026 | After review | Automatic | Official Microsoft distribution |
| Mac App Store | 🔄 Coming Q1 2026 | After review | Automatic | Official Apple distribution |
| Snap Store | 🔄 Coming Q1 2026 | After review | Automatic | Linux universal package |
| Flathub | 🔄 Coming Q2 2026 | After review | Automatic | Linux sandboxed distribution |
| Platform | OS Version | RAM | Disk Space | Additional |
|---|---|---|---|---|
| Windows | Windows 10 (1809+) or 11 | 4 GB | 200 MB | Internet connection |
| macOS | macOS 11 Big Sur or later | 4 GB | 200 MB | Internet connection |
| Linux | Ubuntu 20.04+ / Debian 11+ / Fedora 35+ | 4 GB | 200 MB | GLIBC 2.31+, Internet |
| Platform | OS Version | RAM | Disk Space | Additional |
|---|---|---|---|---|
| Windows | Windows 11 | 8 GB | 500 MB | Webcam + Microphone |
| macOS | macOS 13 Ventura or later | 8 GB | 500 MB | Webcam + Microphone |
| Linux | Ubuntu 22.04+ / Fedora 38+ | 8 GB | 500 MB | Webcam + Microphone |
- Ports: UDP 3478 (STUN), UDP 19302-19309 (WebRTC)
- Firewall: Allow P2P connections (WebRTC)
- NAT: Most NAT types supported via STUN/TURN
- Bandwidth: 128 kbps minimum for audio, 1 Mbps for video
- Security Documentation - Cryptographic implementation details
- Protocol Specification - Technical protocol documentation
- Architecture - System design and components
- API Reference - Core API documentation
For questions and support:
- Community Forum: GitHub Discussions
- Email: support@securebit.chat
While the desktop application source code is not publicly available, there are many ways to contribute to SecureBit:
The cryptographic engine and protocol implementation:
- Improve encryption algorithms
- Enhance protocol security
- Fix bugs in core components
- Add new security features
- Write tests and documentation
The web version with full source code:
- Improve user interface
- Add new features
- Fix bugs
- Enhance performance
- Write tests
- License: Proprietary
- Usage: Free for personal and commercial use
- Restrictions: No reverse engineering, redistribution requires permission
- Terms: See LICENSE for full terms
SecureBit Desktop applications are currently in public beta (v0.1.x). While the core cryptographic components are production-ready and battle-tested, the desktop wrapper applications are being actively refined.
What this means:
- Security features are fully functional and audited
- Core messaging features work reliably
- UI polish and platform integration improvements ongoing
- Some edge cases and minor bugs may exist
- Performance optimizations in progress
SecureBit is designed with zero data collection:
- ❌ No analytics or telemetry
- ❌ No usage statistics
- ❌ No crash reports (unless you opt-in)
- ❌ No personal information
- ❌ No message metadata
- ❌ No contact lists stored on servers
- ❌ No messages stored on servers
- ❌ No user accounts on servers
- ❌ No connection logs
- ❌ No IP addresses logged
- ❌ No encryption keys stored
- Desktop beta releases
- Windows Store submission
- Mac App Store submission
- Snap Store submission
- Group chat support
- File transfer improvements
- Mobile apps (iOS/Android)
- Hardware security key support
- Multi-device sync
- Themes and customization
- Advanced statistics
- Quantum-resistant cryptography
- Message search improvements
- Video call enhancements
Vote on features in Discussions.
- ⭐ Star the repositories on GitHub
- 🐛 Report bugs and test beta features
- 📢 Spread the word to friends and colleagues
Need help deploying SecureBit in your organization?
- Custom deployment support
- Training and onboarding
- Priority support
- Custom features
🔒 Built with privacy in mind by the SecureBit Team
Made with ❤️ for privacy advocates worldwide
Copyright © 2025-2026 SecureBit Inc. All rights reserved.