OSINT Tools

Censys

Internet asset and certificate search engine

DeHashed

Breach intelligence and credential search

DomainTools

Enterprise domain and DNS intelligence

FOFA

Internet asset search and mapping engine

GreyNoise

Internet scanner reputation intelligence

Intelligence X

Search leaked data and dark web material

Maltego

Visual OSINT link-analysis platform

Masscan

Very fast internet-scale port scanner

Nmap

Network mapping and port scanning tool

SecurityTrails

DNS history and domain intelligence platform

Shodan

Search exposed internet-connected services

SpiderFoot

Automated OSINT reconnaissance framework

VirusTotal

Analyze files, URLs, domains, and IPs

Wireshark

Network protocol analyzer

ZoomEye

Cyberspace search engine for exposed assets

urlscan.io

Scan and analyze URLs safely

ADS-B Exchange

an unfiltered flight tracking network using ADS-B data from aircraft and comm

AFRINIC Whois

AFRINIC regional WHOIS service

ANY.RUN Threat Intelligence Lookup

ANY.RUN sandboxed runs IOC lookup

APNIC Whois

APNIC regional WHOIS service

ARIN Whois-RWS

ARIN regional WHOIS API

ASNLookup

Free ASN to prefix lookup

ASNmap

ASN to CIDR resolver by ProjectDiscovery

ASlookup

Look up ASN, owner and announced prefixes for an IP