Holehe
github.com
Find associated accounts to email
CLI
Related in Email/Phone Investigation
GHunt
github.com
Investigate Google accounts
CLI
Epieos
epieos.com
Email + phone reverse lookup
Web
h8mail
github.com
Search in data breaches
CLISensitive
EmailHippo
tools.emailhippo.com
Email verification
Web
Hunter.io
hunter.io
Find corporate emails
Web