I will build a flutter chat app with e2ee and firebase backend


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Looking for a secure, WhatsApp-style messaging solution? I will build a professional Full Stack Chat Application with End-to-End Encryption (E2EE) to ensure maximum privacy for your users.
Privacy is no longer optional. I specialize in building "Zero-Knowledge" systems where only the sender and receiver can read the messages, not even the server admin!
Key Features:
- Real-time Messaging: Powered by WebSockets for instant delivery.
- High-Level Security: Client-side encryption using AES-256 or Signal Protocol logic.
- Media Sharing: Securely send images, videos, and documents.
- Group Chats: Encrypted group communication.
- Push Notifications: Stay connected even when the app is closed.
Tech Stack: I use Flutter for cross-platform mobile, Node.js/Socket.io for the backend, and Firebase/MongoDB for secure data storage.
Your privacy is my priority. Let's build a secure future together.
Message me now to discuss your custom requirements!
Conoce a Annick P
Flutter Developer
- DeReino Unido
- Miembro desdedic 2025
Idiomas
Español, Inglés, Francés, Alemán
FAQ
What makes your encryption "End-to-End"
It means the encryption/decryption keys are generated and stored only on the user's device. The server only sees encrypted gibberish, making it impossible for anyone (including me or you) to read the messages on the backend.
Do you support Voice and Video calling
Yes! Secure VoIP and Video calls are available as part of my Premium package or as a custom add-on using WebRTC technology.
Can I host this on my own private server
Absolutely. I can deploy the backend to your VPS (DigitalOcean, AWS, etc.) so you have 100% control over your data and user base.
Is the app scalable to thousands of users
Yes. I use scalable architectures like Socket.io or AWS AppSync to ensure the app remains fast and responsive even as your user base grows.

