HaveIBeenRansom

A free OSINT service that alerts users if their email or personal data appears in infostealer logs—malware-collected credentials and browser artifacts often dumped on underground forums or ransomware leak sites. https://haveibeenransom.com/

CredenShow

A deep web breach search engine that lets you check if your email or credentials have been exposed in data leaks—showing full cleartext passwords, supporting real-time monitoring, and offering enterprise APIs for proactive account takeover defense. https://credenshow.ru/home

AntiPublic

HUGE database and lookup tool containing billions of records of leaked credentials (email/password pairs) gathered from various public data breaches and compromised sources. Highly utilized for checking the legitimacy of compromised data and security analysis. https://antipublic.net

BF Search

Search tool for accessing and analyzing historical BreachForums user data. Quickly find and investigate metadata associated with user nicknames from the leaked database for valuable OSINT and security research. https://bf.based.re

Venacus

Data breach search engine that allows you to search for your data breaches and get notified when your data is compromised, helping protect your data and organization. https://venacus.com/

Find.OSINT-Tool.com

A search engine designed to help OSINT researchers find useful resources and tools across the internet, providing a curated selection of publicly available data sources for investigative purposes. https://find.osint-tool.com/