Omnisci3nt – See What They’ve Tried to Hide Extract deep intelligence from any domain. From subdomains to SSL certs, archived secrets to exposed ports — Omnisci3nt gives you the full picture in seconds.

A curated collection of free or freemium web-based penetration testing and vulnerability analysis tools. These tools assist security professionals and enthusiasts in discovering, assessing, and managing vulnerabilities online, without the need for local installations. Contributions are welcome!

NetDeltaMonitor is a comprehensive network reconnaissance and port scanning tool designed with a focus on security and continuous monitoring.

BaRecon is a Bash-based tool that performs basic reconnaissance on a network block, a domain and its subdomains, or a single IP address.

The "Uh-Recon" tools used by Unhackers for pre-engagement reconnaissance

DeepSubs is an advanced, modular subdomain enumeration framework designed for security professionals, red teamers, and bug bounty hunters.

Robots.txt Web Recon and Enumeration Tool

A Python-based reconnaissance tool offering both CLI and GUI interfaces for performing information gathering on domains. Features include WHOIS lookup, DNS enumeration, subdomain discovery, port scanning, banner grabbing, and technology detection.