Analyze Seed

This shows you in detail how seed words encode the 256 bits of a Monero spend secret key, displays the derived view secret key plus the two corresponding public keys, and illustrates how the 95-character public Monero address is derived from the public keys.

As this is for education and fun you can run it perfectly well on the given random seeds. You can also analyze your own seeds if you want but be sure to read the warning first before you do.

You find more technical details on Monero Core Team member Luigi's website.

Caution before you submit a true, hot seed with a balance: This is a server-based app, the server will receive your seed and could, in principle, steal all your coins. It won't, but every scammer would claim that, right?