Flowsint: The Open Source Graph Tool That Makes OSINT Recon Easy

Open source intelligence is becoming a powerful skill for security researchers, investigators, journalists, and everyday analysts who want to understand how digital assets connect.

The challenge has always been gathering information from many different sources, then trying to make sense of the relationships between domains, IPs, emails, or even crypto wallets.

Flowsint solves this problem with a simple idea: turn OSINT into a graph.

Flowsint is an open source, graph based OSINT tool created for reconnaissance and mapping digital relationships. Instead of digging through messy lists, logs, and raw data, you can visualize everything in a clear, interactive graph that updates automatically using built in transforms.

What Flowsint Does

Flowsint pulls data from various OSINT sources and displays it as nodes and connections. This lets you see patterns that are nearly impossible to spot in text based results.

It can reveal how:

• A domain connects to its hosting IP
• An email links to multiple accounts or breached datasets
• A crypto wallet ties into other addresses
• A suspicious domain cluster shares infrastructure
• Seemingly unrelated assets connect through a hidden pathway

For reconnaissance, investigation, and early stage threat research, this saves enormous time. It also reduces errors because the graph gives you a visual picture instead of forcing you to interpret complex data manually.

Automated Transforms

Transforms are automated lookup actions that enrich your data. For example:

• Domain to IP
• IP to ASN
• Email to breach data
• Crypto address to transaction explorer
• Domain to subdomains
• URL to metadata

Each transform adds more nodes to the graph, expanding your view and revealing connections that may not be obvious at first glance. Flowsint runs these transforms with a single click or by chaining them together.

Why Investigators Like It

Flowsint is useful because it is lightweight, open source, and easy to extend. You can run it locally, which is ideal for security researchers who want more control over their tools. The interface is minimal, so you can focus on the graph rather than digging through menus.

Key benefits:

• Visualizes OSINT data in real time
• Supports multiple data sources
• Helps uncover hidden relationships
• Works for domains, IPs, emails, crypto wallets, and more
• Fully open source
• Easy to extend with custom transforms

If you work in cybersecurity, journalism, fraud detection, blockchain analysis, privacy research, or digital investigations, this tool cuts hours off your workflow.

How to Get Started

Setup is straightforward. The GitHub repo includes everything you need to install, configure, and run transforms locally.

You can start here:
https://github.com/reconurge/flowsint/?tab=readme-ov-file#get-started

From there, run your first transforms, import your data, and begin mapping digital footprints in a graph that makes everything easier to understand.