What are some alternatives?
When comparing We Leak Info and NuclearLeaks, you can also consider the following products
Snusbase - The industry leading database lookup.
DeHashed - DeHashed is the largest & fastest data breach search engine.
Databases.today - The largest collection of publicly available databases for security researchers and journalists.
GhostProject.fr - GhostProject.fr is a Fatest Free Database Lookup of Recent 1.4 billion password breach compilation
LeakBase - Check if your account credentials have been leaked.
Leaksify - Check if you have an account that has been compromised in a data breach.