Awesome Hacker Search Engines

A list of search engines useful during Penetration testing, vulnerability assessments, red team operations, bug bounty and more

Shodan - Search Engine for the Internet of Everything
Onyphe.io - Cyber Defense Search Engine for open-source and cyber threat intelligence data
ZoomEye - Global cyberspace mapping
GreyNoise - The source for understanding internet noise
Natlas
FOFA

NIST NVD - National Vulnerability Database
MITRE CVE - Identify, define, and catalog publicly disclosed cybersecurity vulnerabilities
osv.dev - Open Source Vulnerabilities
cloudvulndb.org - The Open Cloud Vulnerability & Security Issue Database
Vulners.com - Your Search Engine for Security Intelligence
opencve.io - Easiest way to track CVE updates and be alerted about new vulnerabilities
security.snyk.io - Open Source Vulnerability Database
Rapid7 - DB - Vulnerability & Exploit Database
CVEDetails - The ultimate security vulnerability datasource
VulnIQ
SynapsInt - The unified OSINT research tool
Aqua Vulnerability Database - Vulnerabilities and weaknesses in open source applications and cloud native infrastructure

FullHunt.io - Attack surface database of the entire Internet
BynaryEdge - We scan the web and gather data for you
Censys - Attack Surface Management Solutions
RedHunt Labs - Discover your Attack Surface, Continuously
SecurityTrails - The Total Internet Inventory
criminalip.io - Cyber Threat Intelligence Search Engine and Attack Surface Management(ASM) platform

GitHub Code Search
grep.app - Search across a half million git repos
publicwww.com - Find any alphanumeric snippet, signature or keyword in the web pages HTML, JS and CSS code
SearchCode - Search 75 billion lines of code from 40 million projects
NerdyData - Find companies based on their website's tech stack or code
RepoSearch - Source code search engine that helps you find implementation details, example usages or just analyze code

Hunter.io - Find professional email addresses in seconds
PhoneBook - Lists all domains, email addresses, or URLs for the given input domain
IntelligenceX - Search engine and data archive
Reacher.email - Open-Source Email Verification
RocketReach
email-format.com - Find the email address formats in use at thousands of companies
EmailHippo - Email address verification technology
ThatsThem - Reverse email lookup
verify-email.org
Melissa - Emailcheck
VoilaNorbert - I can find anyone's email address
SynapsInt - The unified OSINT research tool
skymem.info - Find email addresses of companies and people