Krantz Seed
A forensic CLI scanner that walks any folder looking for BIP39 seed phrases and private keys. Built-in PDF, DOCX, and XLSX text extraction. AI-powered image OCR for screenshots and scans (Pro plan).
Get StartedMulti-Format Key Detection
Detects 6 private key formats: hex, Bitcoin/altcoin WIF, BIP32 extended keys, Solana keypairs (base58 and JSON), and Nostr nsec1. Every match is verified before being reported.
Mathematically Verified
No regex-only matches. Each candidate is checked against the underlying cryptographic curve. If it appears in the results, it is a valid key — not a coincidence.
Document & Archive Support
Reads text files, PDF, DOCX, XLSX, XLSM. Recursively unpacks ZIP archives (configurable depth) so seeds hidden inside backups are still found.
AI Image OCR (Pro)
Pro plan unlocks image scanning. Send a screenshot, photo, or scanned recovery card and our self-hosted OCR pipeline extracts the text — then the scanner checks it for seeds and keys. Runs on dedicated RTX 5090 GPUs in our own infrastructure for accuracy and privacy.
Built for Huge Folders
Streaming walker handles arbitrarily large directories without loading the file list into memory. Tested on 20 GB folders. Multi-threaded with configurable concurrency.
Complete Audit Log
Every file shows up in csv/files.csv with its outcome — scanned, skipped, or failed — and the reason. Live summary updates every 5 seconds during the scan.