Heavy-duty tools for data work.
Three tools, one account — mailbox testing, file sorting, and seed recovery.
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Krantz Mail
Test mailbox logins across IMAP, POP3, SMTP, and OAuth — consumer and corporate — with automatic server detection, proxy rotation, and a built-in inbox viewer.

Krantz Sort
Sort, dedupe, split, join, and filter huge text files at native speed.

Krantz Seed
Scan your local files and archives for lost wallet seed phrases and private keys. Every match cryptographically verified.
Get to results faster.
Load the data, run the job, get the output. That's the whole workflow.
Built to be fast. Native performance. No interpreter overhead, no waiting around for batches to finish.
Every protocol, every server. Broad protocol coverage with automatic server detection for each domain.
Pay for what you use. Each tool is its own subscription. No bundles forced on you, no per-seat fees.
The only checker that actually works out of the box.
Ready to start?
Sign up, install, run. No demo calls.
Get StartedDeposited. Not going anywhere.
If we ever cheat you, Lolz.live admins settle the deal from our deposit. Your money's the last thing at risk.