Talk to your past self. Talk to your loved ones who are gone. Never lose a moment again.
ECHO is an AI-powered personal memory and legacy system that allows users to capture, organize, and interact with their own life memories and create conversational AI replicas of loved ones (living or deceased). It offers a secure, emotional, and intelligent interface to preserve human experiences forever.
- AI Memory Capture: Ingest data from messages, journals, photos, and voice notes
- AI Replica Creation: Create conversational AI replicas of loved ones
- Conversational Interface: Talk to your past self or deceased family members
- Privacy-First: Local-first architecture with full encryption
- Multi-Modal: Text, voice, and image support
- Python 3.8+
- Node.js 16+
- PostgreSQL
- OpenAI API key (or local LLM setup)
- Clone and setup backend:
cd backend
pip install -r requirements.txt- Setup database:
# Create PostgreSQL database
createdb echo_db
# Run migrations
python manage.py migrate- Setup frontend:
cd frontend
npm install- Environment setup:
# Copy environment template
cp .env.example .env
# Add your API keys and database credentials- Start backend:
cd backend
python app.py- Start frontend:
cd frontend
npm run dev- Visit: http://localhost:3000
echo/
├── backend/ # FastAPI backend
│ ├── app.py # Main application
│ ├── models/ # Database models
│ ├── api/ # API endpoints
│ ├── services/ # Business logic
│ └── utils/ # Utilities
├── frontend/ # React frontend
│ ├── src/
│ │ ├── components/ # React components
│ │ ├── pages/ # Page components
│ │ ├── services/ # API services
│ │ └── utils/ # Utilities
└── docs/ # Documentation
- Frontend: React 18, TypeScript, Tailwind CSS
- Backend: FastAPI, Python
- Database: PostgreSQL, ChromaDB
- AI: OpenAI GPT-4, Whisper
- Speech: Web Speech API, ElevenLabs
- Deployment: Docker, local-first
- Upload text files, voice recordings, or images
- Data is automatically processed and indexed
- Semantic search enables intelligent querying
- Upload conversations and media from/about loved ones
- AI learns their personality and communication style
- Chat interface allows natural conversations
- Past Self: Query your own memories and experiences
- Loved Ones: Talk to AI replicas of family/friends
- Memory Exploration: Re-live specific moments or time periods
- Local-first architecture
- End-to-end encryption for all data
- Optional cloud backup with user control
- Open-source and auditable
- Phase 1: Data ingestion and storage
- Phase 2: Memory chatbot
- Phase 3: Personality cloning
- Phase 4: Voice and avatar interaction
- Phase 5: Advanced features (emotion analysis, memory graphs)
We welcome contributions! Please see CONTRIBUTING.md for guidelines.
MIT License - see LICENSE for details.
ECHO is designed with deep respect for human emotions and memories. Please use responsibly:
- Obtain consent before creating replicas of others
- Be mindful of emotional impact
- Remember that AI replicas are not real people
- Respect privacy and data ownership
ECHO - Because every moment matters, and every voice deserves to be heard forever.