CloudOTP

CloudOTP is a modern, cross-platform two-factor authenticator built with Flutter.

It supports Android, Windows, and Linux, offering secure cloud backups, powerful token management, and a polished UI optimized for mobile, tablet, and desktop.

🚀 Highlights

🌐 Cross-Platform Support

• Built with Flutter, runs seamlessly on Android, Windows, and Linux
• UI fully optimized for mobile, tablet, and desktop environments

🔐 OTP Protocols

• Supports TOTP, HOTP, MOTP, Steam, and Yandex token algorithms

➕ Token Management

• Add tokens via QR code scanning, image recognition, or manual entry
• Custom icons and categories
• Flexible layout modes: Simple, Compact, List, and Spotlight
• Supports sorting and searching for quick access

🌓 Themes & UI

• Fully responsive and adaptive UI for all device sizes
• Supports dark mode, multiple color themes, and multi-language UI

☁️ Backup & Sync

• Supports local and automatic cloud backup
• Integrates with WebDAV, OneDrive, Dropbox, S3, Google Drive, Box, Huawei Cloud, Aliyun Drive

🔁 Import/Export

• Export/import as encrypted files or URI lists
• One-click import from: Aegis, andOTP, Bitwarden, EntAuth, FreeOTP+, Google Authenticator, 2FAS, TOTP Authenticator, WinAuth

🛡️ Security

• Encrypted database storage
• Supports gesture password for app access
• Supports biometric unlock

📦 Installation

📱 Android

Choose the correct ABI. If unsure, use the universal version.

| Variant | Description | | ------------- | ------------------------------------------------------------ | | arm64-v8a | For modern 64-bit Android devices (recommended for most users) | | armeabi-v7a | For most older 32-bit Android devices | | x86_64 | For Android emulators or specific x86 tablets (not for regular devices) | | universal | Supports all CPU architectures, larger file size (recommended for most) |

💻 Windows

| Variant | Description | | ------------------ | ------------------------------------------------------------ | | Installer (.exe) | Standard Windows installer with Start Menu integration and auto-updates | | Portable (.zip) | No installation required, can be run from any folder or USB stick |

Note: Currently, only x86_64 (64-bit) Windows systems are supported.

🐧 Linux

📦 Recommended: Flatpak

Install via Flathub:

flatpak install flathub com.cloudchewie.cloudotp

Once installed, launch it via your app menu or by running:

flatpak run com.cloudchewie.cloudotp

📥 Direct Downloads

| Architecture | Formats Available | Notes | | ------------ | ----------------- | ----------------------------- | | x86_64 | .deb, .tar.gz | For most modern Linux systems | | arm64 | .deb, .tar.gz | For devices like Raspberry Pi |

🧪 Development Setup

git clone https://github.com/Robert-Stackflow/CloudOTP.git
cd cloudotp
flutter pub get
flutter gen-l10n
cd third-party/chewie
flutter gen-l10n
cd ../../
flutter run -d windows   # or android, linux

📝 Roadmap

• [ ] iOS support (via macOS build)
• [ ] Custom theme
• [ ] Import custom icons

🤝 Contributing

Contributions, issues and feature requests are welcome!

Feel free to check the issues page or submit a PR.

📄 License

This project is licensed under the GPL-3.0 License - see the LICENSE file for details.

📷 Screenshots

<img src="tools/art/mobile_1.png" alt="Mobile_1" style="zoom: 25%;" /> <img src="tools/art/desktop_1.png" alt="Desktop_1" style="zoom: 25%;" /> <img src="tools/art/mobile_2.png" alt="Mobile_2" style="zoom: 25%;" /> <img src="tools/art/mobile_3.png" alt="Mobile_3" style="zoom: 25%;" /> <img src="tools/art/desktop_2.png" alt="Desktop_2" style="zoom: 25%;" />