NExfil is an open source OSINT (Open Source Intelligence) tool designed to locate user profiles across the web based on a given username. Developed in Python, the tool automates the process of checking hundreds of websites to determine whether a specific username exists on those platforms. By performing automated queries across numerous services, NExfil helps investigators, researchers, and security professionals quickly identify potential accounts associated with a particular username. The tool focuses on delivering results rapidly while minimizing false positives during the search process. Users can supply a single username, multiple usernames, or a file containing a list of usernames for bulk scanning. NExfil processes these inputs and attempts to detect matching profiles across more than 350 websites within seconds. Because it is command-line based and open source, it can be easily integrated into OSINT workflows and cybersecurity research environments.
Features
- Searches for username profiles across 350+ websites automatically
- Accepts single usernames, multiple usernames, or username lists from a file
- Designed to reduce false positives while scanning online platforms
- Fast scanning engine capable of checking many services in seconds
- Proxy support options for routing requests through different network setups
- Automatic result saving to text files for later analysis or documentation