✅ OSINT investigations need a high level of privacy. Everything is stored on your machine.
What is it?
Flowsint is a graph-based investigation tool focused on reconnaissance and OSINT (Open Source Intelligence). It allows you to explore relationships between entities through a visual graph interface and automated enrichers.
Available Enrichers
Domain Enrichers
Reverse DNS Resolution - Find domains pointing to an IP
DNS Resolution - Resolve domain to IP addresses
Subdomain Discovery - Enumerate subdomains
WHOIS Lookup - Get domain registration information
Domain to Website - Convert domain to website entity
Domain to Root Domain - Extract root domain
Domain to ASN - Find ASN associated with domain
Domain History - Retrieve historical domain data
IP Enrichers
IP Information - Get geolocation and network details
IP to ASN - Find ASN for IP address
ASN Enrichers
ASN to CIDRs - Get IP ranges for an ASN
CIDR Enrichers
CIDR to IPs - Enumerate IPs in a range
Social Media Enrichers
Maigret - Username search across social platforms
Organization Enrichers
Organization to ASN - Find ASNs owned by organization
Organization Information - Get company details
Organization to Domains - Find domains owned by organization
Cryptocurrency Enrichers
Wallet to Transactions - Get transaction history
Wallet to NFTs - Find NFTs owned by wallet
Website Enrichers
Website Crawler - Crawl and map website structure
Website to Links - Extract all links
Website to Domain - Extract domain from URL
Website to Webtrackers - Identify tracking scripts
Website to Text - Extract text content
Email Enrichers
Email to Gravatar - Find Gravatar profile
Email to Breaches - Check data breach databases
Email to Domains - Find associated domains
Phone Enrichers
Phone to Breaches - Check phone number in breaches
Individual Enrichers
Individual to Organization - Find organizational affiliations
Individual to Domains - Find domains associated with person
Integration Enrichers
N8n Connector - Connect to N8n workflows
Project structure
The project is organized into autonomous modules:
Core modules
flowsint-core: Core utilities, orchestrator, vault, celery tasks, and base classes
flowsint-types: Pydantic models and type definitions
flowsint-enrichers: Enricher modules, scanning logic, and tools
flowsint-api: FastAPI server, API routes, and schemas only
Core utilities and base classes used by all other modules:
Database connections (PostgreSQL, Neo4j)
Authentication and authorization
Logging and event handling
Configuration management
Base classes for enrichers and tools
Utility functions
flowsint-types
Pydantic models for all data types:
Domain, IP, ASN, CIDR
Individual, Organization, Email, Phone
Website, Social profiles, Credentials
Crypto wallets, Transactions, NFTs
And many more...
flowsint-enrichers
Enricher modules that process data:
Domain enrichers (subdomains, WHOIS, resolution)
IP enrichers (geolocation, ASN lookup)
Social media enrichers (Maigret, Sherlock)
Email enrichers (breaches, Gravatar)
Crypto enrichers (transactions, NFTs)
And many more...
flowsint-api
FastAPI server providing:
REST API endpoints
Authentication and user management
Graph database integration
Real-time event streaming
flowsint-app
Frontend application.
Modern and UI friendly interface
Built for performance (no lag even on thousands of nodes)
Development workflow
Adding new types: Add to flowsint-types module
Adding new enrichers: Add to flowsint-enrichers module
Adding new API endpoints: Add to flowsint-api module
Adding new utilities: Add to flowsint-core module
Testing
Each module has its own (incomplete) test suite:
# Test core modulecd flowsint-core
poetry run pytest
# Test types modulecd ../flowsint-types
poetry run pytest
# Test enrichers modulecd ../flowsint-enrichers
poetry run pytest
# Test API modulecd ../flowsint-api
poetry run pytest
Contributing
Follow the modular structure
Use Poetry for dependency management
Write tests for new functionality
Update documentation as needed
⚖️ Legal & Ethical Use
Ethics: Please read ETHICS.md for responsible use guidelines.
Flowsint is designed strictly for lawful, ethical investigation and research purposes.
It was created to assist:
Cybersecurity researchers and analysts
Journalists and OSINT investigators
Law enforcement or fraud investigation teams
Organizations conducting internal threat intelligence or digital risk analysis
Flowsint must not be used for:
Unauthorized intrusion, surveillance, or data collection
Harassment, doxxing, or targeting of individuals
Political manipulation, misinformation, or violation of privacy laws
Any misuse of this software is strictly prohibited and goes against the ethical principles defined in ETHICS.md.